From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1223/CH1/EX1.1/Ex1_1.sce | 10 +++++++++ 1223/CH1/EX1.10/Ex1_10.sce | 12 +++++++++++ 1223/CH1/EX1.11/Ex1_11.sce | 10 +++++++++ 1223/CH1/EX1.2/Ex1_2.sce | 12 +++++++++++ 1223/CH1/EX1.3/Ex1_3.sce | 11 ++++++++++ 1223/CH1/EX1.4/Ex1_4.sce | 19 +++++++++++++++++ 1223/CH1/EX1.5/Ex1_5.sce | 15 ++++++++++++++ 1223/CH1/EX1.6/Ex1_6.sce | 22 ++++++++++++++++++++ 1223/CH1/EX1.7/Ex1_7.sce | 12 +++++++++++ 1223/CH1/EX1.9/Ex1_9.sce | 24 ++++++++++++++++++++++ 1223/CH10/EX10.1/Ex10_1.sce | 12 +++++++++++ 1223/CH10/EX10.10/Ex10_10.sce | 8 ++++++++ 1223/CH10/EX10.11/Ex10_11.sce | 16 +++++++++++++++ 1223/CH10/EX10.12/Ex10_12.sce | 21 +++++++++++++++++++ 1223/CH10/EX10.2/Ex10_2.sce | 22 ++++++++++++++++++++ 1223/CH10/EX10.4/Ex10_4.sce | 15 ++++++++++++++ 1223/CH10/EX10.5/Ex10_5.sce | 28 +++++++++++++++++++++++++ 1223/CH10/EX10.6/Ex10_6.sce | 14 +++++++++++++ 1223/CH10/EX10.7/Ex10_7.sce | 21 +++++++++++++++++++ 1223/CH10/EX10.8/Ex10_8.sce | 14 +++++++++++++ 1223/CH10/EX10.9/Ex10_9.sce | 20 ++++++++++++++++++ 1223/CH11/EX11.1/Ex11_1.sce | 26 +++++++++++++++++++++++ 1223/CH11/EX11.10/Ex11_10.sce | 32 +++++++++++++++++++++++++++++ 1223/CH11/EX11.11/Ex11_11.sce | 12 +++++++++++ 1223/CH11/EX11.12/Ex11_12.sce | 16 +++++++++++++++ 1223/CH11/EX11.13/Ex11_13.sce | 13 ++++++++++++ 1223/CH11/EX11.15/Ex11_15.sce | 20 ++++++++++++++++++ 1223/CH11/EX11.16/Ex11_16.sce | 35 +++++++++++++++++++++++++++++++ 1223/CH11/EX11.17/Ex11_17.sce | 16 +++++++++++++++ 1223/CH11/EX11.19/Ex11_19.sce | 35 +++++++++++++++++++++++++++++++ 1223/CH11/EX11.20/Ex11_20.sce | 16 +++++++++++++++ 1223/CH11/EX11.3/Ex11_3.sce | 14 +++++++++++++ 1223/CH11/EX11.7/Ex11_7.sce | 9 ++++++++ 1223/CH11/EX11.8/Ex11_8.sce | 11 ++++++++++ 1223/CH11/EX11.9/Ex11_9.sce | 22 ++++++++++++++++++++ 1223/CH12/EX12.1/Ex12_1.sce | 11 ++++++++++ 1223/CH12/EX12.11/Ex12_11.sce | 25 ++++++++++++++++++++++ 1223/CH12/EX12.16/Ex12_16.sce | 22 ++++++++++++++++++++ 1223/CH12/EX12.19/Ex12_19.sce | 14 +++++++++++++ 1223/CH12/EX12.2/Ex12_2.sce | 13 ++++++++++++ 1223/CH12/EX12.22/Ex12_22.sce | 10 +++++++++ 1223/CH12/EX12.23/Ex12_23.sce | 10 +++++++++ 1223/CH12/EX12.3/Ex12_3.sce | 11 ++++++++++ 1223/CH12/EX12.5/Ex12_5.sce | 15 ++++++++++++++ 1223/CH12/EX12.6/Ex12_6.sce | 15 ++++++++++++++ 1223/CH12/EX12.7/Ex12_7.sce | 12 +++++++++++ 1223/CH13/EX13.1/Ex13_1.sce | 20 ++++++++++++++++++ 1223/CH13/EX13.10/Ex13_10.sce | 29 ++++++++++++++++++++++++++ 1223/CH13/EX13.12/Ex13_12.sce | 13 ++++++++++++ 1223/CH13/EX13.13/Ex13_13.sce | 12 +++++++++++ 1223/CH13/EX13.14/Ex13_14.sce | 15 ++++++++++++++ 1223/CH13/EX13.2/Ex13_2.sce | 15 ++++++++++++++ 1223/CH13/EX13.3/Ex13_3.sce | 34 ++++++++++++++++++++++++++++++ 1223/CH13/EX13.4/Ex13_4.sce | 40 ++++++++++++++++++++++++++++++++++++ 1223/CH13/EX13.5/Ex13_5.sce | 36 ++++++++++++++++++++++++++++++++ 1223/CH13/EX13.6/Ex13_6.sce | 27 ++++++++++++++++++++++++ 1223/CH13/EX13.7/Ex13_7.sce | 18 ++++++++++++++++ 1223/CH13/EX13.9/Ex13_9.sce | 33 +++++++++++++++++++++++++++++ 1223/CH14/EX14.10/Ex14_10.sce | 12 +++++++++++ 1223/CH14/EX14.11/Ex14_11.sce | 11 ++++++++++ 1223/CH14/EX14.13/Ex14_13.sce | 13 ++++++++++++ 1223/CH14/EX14.2/Ex14_2.sce | 8 ++++++++ 1223/CH14/EX14.3/Ex14_3.sce | 10 +++++++++ 1223/CH14/EX14.5/Ex14_5.sce | 10 +++++++++ 1223/CH14/EX14.6/Ex14_6.sce | 8 ++++++++ 1223/CH14/EX14.7/Ex14_7.sce | 11 ++++++++++ 1223/CH14/EX14.8/Ex14_8.sce | 8 ++++++++ 1223/CH15/EX15.10/Ex15_10.sce | 8 ++++++++ 1223/CH15/EX15.13/Ex15_13.sce | 12 +++++++++++ 1223/CH15/EX15.14/Ex15_14.sce | 13 ++++++++++++ 1223/CH15/EX15.15/Ex15_15.sce | 15 ++++++++++++++ 1223/CH15/EX15.16/Ex15_16.sce | 17 +++++++++++++++ 1223/CH15/EX15.2/Ex15_2.sce | 7 +++++++ 1223/CH15/EX15.3/Ex15_3.sce | 8 ++++++++ 1223/CH15/EX15.4/Ex15_4.sce | 11 ++++++++++ 1223/CH15/EX15.6/Ex15_6.sce | 13 ++++++++++++ 1223/CH15/EX15.7/Ex15_7.sce | 14 +++++++++++++ 1223/CH16/EX16.10/Ex16_10.sce | 8 ++++++++ 1223/CH16/EX16.11/Ex16_11.sce | 19 +++++++++++++++++ 1223/CH16/EX16.15/Ex16_15.sce | 33 +++++++++++++++++++++++++++++ 1223/CH16/EX16.3/Ex16_3.sce | 21 +++++++++++++++++++ 1223/CH16/EX16.4/Ex16_4.sce | 21 +++++++++++++++++++ 1223/CH16/EX16.5/Ex16_5.sce | 20 ++++++++++++++++++ 1223/CH16/EX16.9/Ex16_9.sce | 25 ++++++++++++++++++++++ 1223/CH17/EX17.1/Ex17_1.sce | 34 ++++++++++++++++++++++++++++++ 1223/CH17/EX17.11/Ex17_11.sce | 19 +++++++++++++++++ 1223/CH17/EX17.12/Ex17_12.sce | 30 +++++++++++++++++++++++++++ 1223/CH17/EX17.2/Ex17_2.sce | 29 ++++++++++++++++++++++++++ 1223/CH17/EX17.3/Ex17_3.sce | 19 +++++++++++++++++ 1223/CH17/EX17.4/Ex17_4.sce | 20 ++++++++++++++++++ 1223/CH17/EX17.5/Ex17_5.sce | 20 ++++++++++++++++++ 1223/CH17/EX17.7/Ex17_7.sce | 24 ++++++++++++++++++++++ 1223/CH17/EX17.9/Ex17_9.sce | 40 ++++++++++++++++++++++++++++++++++++ 1223/CH2/EX2.1/Ex2_1.sce | 29 ++++++++++++++++++++++++++ 1223/CH2/EX2.10/Ex2_10.sce | 9 ++++++++ 1223/CH2/EX2.11/Ex2_11.sce | 8 ++++++++ 1223/CH2/EX2.2/Ex2_2.sce | 10 +++++++++ 1223/CH2/EX2.3/Ex2_3.sce | 29 ++++++++++++++++++++++++++ 1223/CH2/EX2.5/Ex2_5.sce | 12 +++++++++++ 1223/CH2/EX2.8/Ex2_8.sce | 29 ++++++++++++++++++++++++++ 1223/CH3/EX3.1/Ex3_1.sce | 13 ++++++++++++ 1223/CH3/EX3.10/Ex3_10.sce | 23 +++++++++++++++++++++ 1223/CH3/EX3.13/Ex3_13.sce | 14 +++++++++++++ 1223/CH3/EX3.14/Ex3_14.sce | 36 ++++++++++++++++++++++++++++++++ 1223/CH3/EX3.15/Ex3_15.sce | 27 ++++++++++++++++++++++++ 1223/CH3/EX3.16/Ex3_16.sce | 14 +++++++++++++ 1223/CH3/EX3.17/Ex3_17.sce | 48 +++++++++++++++++++++++++++++++++++++++++++ 1223/CH3/EX3.2/Ex3_2.sce | 8 ++++++++ 1223/CH3/EX3.3/Ex3_3.sce | 18 ++++++++++++++++ 1223/CH3/EX3.4/Ex3_4.sce | 19 +++++++++++++++++ 1223/CH3/EX3.5/Ex3_5.sce | 25 ++++++++++++++++++++++ 1223/CH3/EX3.6/Ex3_6.sce | 32 +++++++++++++++++++++++++++++ 1223/CH3/EX3.7/Ex3_7.sce | 27 ++++++++++++++++++++++++ 1223/CH3/EX3.9/Ex3_9.sce | 37 +++++++++++++++++++++++++++++++++ 1223/CH4/EX4.1/Ex4_1.sce | 27 ++++++++++++++++++++++++ 1223/CH4/EX4.10/Ex4_10.sce | 29 ++++++++++++++++++++++++++ 1223/CH4/EX4.2/Ex4_2.sce | 13 ++++++++++++ 1223/CH4/EX4.4/Ex4_4.sce | 25 ++++++++++++++++++++++ 1223/CH4/EX4.5/Ex4_5.sce | 27 ++++++++++++++++++++++++ 1223/CH4/EX4.7/Ex4_7.sce | 16 +++++++++++++++ 1223/CH4/EX4.8/Ex4_8.sce | 25 ++++++++++++++++++++++ 1223/CH4/EX4.9/Ex4_9.sce | 12 +++++++++++ 1223/CH5/EX5.1/Ex5_1.sce | 14 +++++++++++++ 1223/CH5/EX5.10/Ex5_10.sce | 14 +++++++++++++ 1223/CH5/EX5.11/Ex5_11.sce | 15 ++++++++++++++ 1223/CH5/EX5.13/Ex5_13.sce | 23 +++++++++++++++++++++ 1223/CH5/EX5.14/Ex5_14.sce | 14 +++++++++++++ 1223/CH5/EX5.16/Ex5_16.sce | 10 +++++++++ 1223/CH5/EX5.17/Ex5_17.sce | 17 +++++++++++++++ 1223/CH5/EX5.19/Ex5_19.sce | 18 ++++++++++++++++ 1223/CH5/EX5.2/Ex5_2.sce | 11 ++++++++++ 1223/CH5/EX5.20/Ex5_20.sce | 28 +++++++++++++++++++++++++ 1223/CH5/EX5.3/Ex5_3.sce | 15 ++++++++++++++ 1223/CH5/EX5.4/Ex5_4.sce | 18 ++++++++++++++++ 1223/CH5/EX5.6/Ex5_6.sce | 20 ++++++++++++++++++ 1223/CH5/EX5.7/Ex5_7.sce | 20 ++++++++++++++++++ 1223/CH5/EX5.8/Ex5_8.sce | 15 ++++++++++++++ 1223/CH6/EX6.1/Ex6_1.sce | 13 ++++++++++++ 1223/CH6/EX6.11/Ex6_11.sce | 23 +++++++++++++++++++++ 1223/CH6/EX6.12/Ex6_12.sce | 17 +++++++++++++++ 1223/CH6/EX6.13/Ex6_13.sce | 20 ++++++++++++++++++ 1223/CH6/EX6.14/Ex6_14.sce | 34 ++++++++++++++++++++++++++++++ 1223/CH6/EX6.15/Ex6_15.sce | 33 +++++++++++++++++++++++++++++ 1223/CH6/EX6.17/Ex6_17.sce | 11 ++++++++++ 1223/CH6/EX6.18/Ex6_18.sce | 23 +++++++++++++++++++++ 1223/CH6/EX6.19/Ex6_19.sce | 23 +++++++++++++++++++++ 1223/CH6/EX6.2/Ex6_2.sce | 23 +++++++++++++++++++++ 1223/CH6/EX6.3/Ex6_3.sce | 29 ++++++++++++++++++++++++++ 1223/CH6/EX6.4/Ex6_4.sce | 31 ++++++++++++++++++++++++++++ 1223/CH6/EX6.6/Ex6_6.sce | 17 +++++++++++++++ 1223/CH6/EX6.7/Ex6_7.sce | 23 +++++++++++++++++++++ 1223/CH6/EX6.9/Ex6_9.sce | 10 +++++++++ 1223/CH7/EX7.1/Ex7_1.sce | 21 +++++++++++++++++++ 1223/CH7/EX7.10/Ex7_10.sce | 16 +++++++++++++++ 1223/CH7/EX7.12/Ex7_12.sce | 12 +++++++++++ 1223/CH7/EX7.13/Ex7_13.sce | 13 ++++++++++++ 1223/CH7/EX7.14/Ex7_14.sce | 32 +++++++++++++++++++++++++++++ 1223/CH7/EX7.15/Ex7_15.sce | 36 ++++++++++++++++++++++++++++++++ 1223/CH7/EX7.16/Ex7_16.sce | 37 +++++++++++++++++++++++++++++++++ 1223/CH7/EX7.17/Ex7_17.sce | 33 +++++++++++++++++++++++++++++ 1223/CH7/EX7.2/Ex7_2.sce | 22 ++++++++++++++++++++ 1223/CH7/EX7.3/Ex7_3.sce | 32 +++++++++++++++++++++++++++++ 1223/CH7/EX7.4/Ex7_4.sce | 10 +++++++++ 1223/CH7/EX7.5/Ex7_5.sce | 23 +++++++++++++++++++++ 1223/CH7/EX7.6/Ex7_6.sce | 21 +++++++++++++++++++ 1223/CH7/EX7.7/Ex7_7.sce | 39 +++++++++++++++++++++++++++++++++++ 1223/CH7/EX7.8/Ex7_8.sce | 30 +++++++++++++++++++++++++++ 1223/CH7/EX7.9/Ex7_9.sce | 8 ++++++++ 1223/CH8/EX8.11/Ex8_11.sce | 38 ++++++++++++++++++++++++++++++++++ 1223/CH8/EX8.2/Ex8_2.sce | 17 +++++++++++++++ 1223/CH8/EX8.3/Ex8_3.sce | 13 ++++++++++++ 1223/CH8/EX8.7/Ex8_7.sce | 21 +++++++++++++++++++ 1223/CH8/EX8.8/Ex8_8.sce | 27 ++++++++++++++++++++++++ 1223/CH8/EX8.9/Ex8_9.sce | 38 ++++++++++++++++++++++++++++++++++ 1223/CH9/EX9.5/Ex9_5.sce | 23 +++++++++++++++++++++ 1223/CH9/EX9.9/Ex9_9.sce | 9 ++++++++ 176 files changed, 3450 insertions(+) create mode 100755 1223/CH1/EX1.1/Ex1_1.sce create mode 100755 1223/CH1/EX1.10/Ex1_10.sce create mode 100755 1223/CH1/EX1.11/Ex1_11.sce create mode 100755 1223/CH1/EX1.2/Ex1_2.sce create mode 100755 1223/CH1/EX1.3/Ex1_3.sce create mode 100755 1223/CH1/EX1.4/Ex1_4.sce create mode 100755 1223/CH1/EX1.5/Ex1_5.sce create mode 100755 1223/CH1/EX1.6/Ex1_6.sce create mode 100755 1223/CH1/EX1.7/Ex1_7.sce create mode 100755 1223/CH1/EX1.9/Ex1_9.sce create mode 100755 1223/CH10/EX10.1/Ex10_1.sce create mode 100755 1223/CH10/EX10.10/Ex10_10.sce create mode 100755 1223/CH10/EX10.11/Ex10_11.sce create mode 100755 1223/CH10/EX10.12/Ex10_12.sce create mode 100755 1223/CH10/EX10.2/Ex10_2.sce create mode 100755 1223/CH10/EX10.4/Ex10_4.sce create mode 100755 1223/CH10/EX10.5/Ex10_5.sce create mode 100755 1223/CH10/EX10.6/Ex10_6.sce create mode 100755 1223/CH10/EX10.7/Ex10_7.sce create mode 100755 1223/CH10/EX10.8/Ex10_8.sce create mode 100755 1223/CH10/EX10.9/Ex10_9.sce create mode 100755 1223/CH11/EX11.1/Ex11_1.sce create mode 100755 1223/CH11/EX11.10/Ex11_10.sce create mode 100755 1223/CH11/EX11.11/Ex11_11.sce create mode 100755 1223/CH11/EX11.12/Ex11_12.sce create mode 100755 1223/CH11/EX11.13/Ex11_13.sce create mode 100755 1223/CH11/EX11.15/Ex11_15.sce create mode 100755 1223/CH11/EX11.16/Ex11_16.sce create mode 100755 1223/CH11/EX11.17/Ex11_17.sce create mode 100755 1223/CH11/EX11.19/Ex11_19.sce create mode 100755 1223/CH11/EX11.20/Ex11_20.sce create mode 100755 1223/CH11/EX11.3/Ex11_3.sce create mode 100755 1223/CH11/EX11.7/Ex11_7.sce create mode 100755 1223/CH11/EX11.8/Ex11_8.sce create mode 100755 1223/CH11/EX11.9/Ex11_9.sce create mode 100755 1223/CH12/EX12.1/Ex12_1.sce create mode 100755 1223/CH12/EX12.11/Ex12_11.sce create mode 100755 1223/CH12/EX12.16/Ex12_16.sce create mode 100755 1223/CH12/EX12.19/Ex12_19.sce create mode 100755 1223/CH12/EX12.2/Ex12_2.sce create mode 100755 1223/CH12/EX12.22/Ex12_22.sce create mode 100755 1223/CH12/EX12.23/Ex12_23.sce create mode 100755 1223/CH12/EX12.3/Ex12_3.sce create mode 100755 1223/CH12/EX12.5/Ex12_5.sce create mode 100755 1223/CH12/EX12.6/Ex12_6.sce create mode 100755 1223/CH12/EX12.7/Ex12_7.sce create mode 100755 1223/CH13/EX13.1/Ex13_1.sce create mode 100755 1223/CH13/EX13.10/Ex13_10.sce create mode 100755 1223/CH13/EX13.12/Ex13_12.sce create mode 100755 1223/CH13/EX13.13/Ex13_13.sce create mode 100755 1223/CH13/EX13.14/Ex13_14.sce create mode 100755 1223/CH13/EX13.2/Ex13_2.sce create mode 100755 1223/CH13/EX13.3/Ex13_3.sce create mode 100755 1223/CH13/EX13.4/Ex13_4.sce create mode 100755 1223/CH13/EX13.5/Ex13_5.sce create mode 100755 1223/CH13/EX13.6/Ex13_6.sce create mode 100755 1223/CH13/EX13.7/Ex13_7.sce create mode 100755 1223/CH13/EX13.9/Ex13_9.sce create mode 100755 1223/CH14/EX14.10/Ex14_10.sce create mode 100755 1223/CH14/EX14.11/Ex14_11.sce create mode 100755 1223/CH14/EX14.13/Ex14_13.sce create mode 100755 1223/CH14/EX14.2/Ex14_2.sce create mode 100755 1223/CH14/EX14.3/Ex14_3.sce create mode 100755 1223/CH14/EX14.5/Ex14_5.sce create mode 100755 1223/CH14/EX14.6/Ex14_6.sce create mode 100755 1223/CH14/EX14.7/Ex14_7.sce create mode 100755 1223/CH14/EX14.8/Ex14_8.sce create mode 100755 1223/CH15/EX15.10/Ex15_10.sce create mode 100755 1223/CH15/EX15.13/Ex15_13.sce create mode 100755 1223/CH15/EX15.14/Ex15_14.sce create mode 100755 1223/CH15/EX15.15/Ex15_15.sce create mode 100755 1223/CH15/EX15.16/Ex15_16.sce create mode 100755 1223/CH15/EX15.2/Ex15_2.sce create mode 100755 1223/CH15/EX15.3/Ex15_3.sce create mode 100755 1223/CH15/EX15.4/Ex15_4.sce create mode 100755 1223/CH15/EX15.6/Ex15_6.sce create mode 100755 1223/CH15/EX15.7/Ex15_7.sce create mode 100755 1223/CH16/EX16.10/Ex16_10.sce create mode 100755 1223/CH16/EX16.11/Ex16_11.sce create mode 100755 1223/CH16/EX16.15/Ex16_15.sce create mode 100755 1223/CH16/EX16.3/Ex16_3.sce create mode 100755 1223/CH16/EX16.4/Ex16_4.sce create mode 100755 1223/CH16/EX16.5/Ex16_5.sce create mode 100755 1223/CH16/EX16.9/Ex16_9.sce create mode 100755 1223/CH17/EX17.1/Ex17_1.sce create mode 100755 1223/CH17/EX17.11/Ex17_11.sce create mode 100755 1223/CH17/EX17.12/Ex17_12.sce create mode 100755 1223/CH17/EX17.2/Ex17_2.sce create mode 100755 1223/CH17/EX17.3/Ex17_3.sce create mode 100755 1223/CH17/EX17.4/Ex17_4.sce create mode 100755 1223/CH17/EX17.5/Ex17_5.sce create mode 100755 1223/CH17/EX17.7/Ex17_7.sce create mode 100755 1223/CH17/EX17.9/Ex17_9.sce create mode 100755 1223/CH2/EX2.1/Ex2_1.sce create mode 100755 1223/CH2/EX2.10/Ex2_10.sce create mode 100755 1223/CH2/EX2.11/Ex2_11.sce create mode 100755 1223/CH2/EX2.2/Ex2_2.sce create mode 100755 1223/CH2/EX2.3/Ex2_3.sce create mode 100755 1223/CH2/EX2.5/Ex2_5.sce create mode 100755 1223/CH2/EX2.8/Ex2_8.sce create mode 100755 1223/CH3/EX3.1/Ex3_1.sce create mode 100755 1223/CH3/EX3.10/Ex3_10.sce create mode 100755 1223/CH3/EX3.13/Ex3_13.sce create mode 100755 1223/CH3/EX3.14/Ex3_14.sce create mode 100755 1223/CH3/EX3.15/Ex3_15.sce create mode 100755 1223/CH3/EX3.16/Ex3_16.sce create mode 100755 1223/CH3/EX3.17/Ex3_17.sce create mode 100755 1223/CH3/EX3.2/Ex3_2.sce create mode 100755 1223/CH3/EX3.3/Ex3_3.sce create mode 100755 1223/CH3/EX3.4/Ex3_4.sce create mode 100755 1223/CH3/EX3.5/Ex3_5.sce create mode 100755 1223/CH3/EX3.6/Ex3_6.sce create mode 100755 1223/CH3/EX3.7/Ex3_7.sce create mode 100755 1223/CH3/EX3.9/Ex3_9.sce create mode 100755 1223/CH4/EX4.1/Ex4_1.sce create mode 100755 1223/CH4/EX4.10/Ex4_10.sce create mode 100755 1223/CH4/EX4.2/Ex4_2.sce create mode 100755 1223/CH4/EX4.4/Ex4_4.sce create mode 100755 1223/CH4/EX4.5/Ex4_5.sce create mode 100755 1223/CH4/EX4.7/Ex4_7.sce create mode 100755 1223/CH4/EX4.8/Ex4_8.sce create mode 100755 1223/CH4/EX4.9/Ex4_9.sce create mode 100755 1223/CH5/EX5.1/Ex5_1.sce create mode 100755 1223/CH5/EX5.10/Ex5_10.sce create mode 100755 1223/CH5/EX5.11/Ex5_11.sce create mode 100755 1223/CH5/EX5.13/Ex5_13.sce create mode 100755 1223/CH5/EX5.14/Ex5_14.sce create mode 100755 1223/CH5/EX5.16/Ex5_16.sce create mode 100755 1223/CH5/EX5.17/Ex5_17.sce create mode 100755 1223/CH5/EX5.19/Ex5_19.sce create mode 100755 1223/CH5/EX5.2/Ex5_2.sce create mode 100755 1223/CH5/EX5.20/Ex5_20.sce create mode 100755 1223/CH5/EX5.3/Ex5_3.sce create mode 100755 1223/CH5/EX5.4/Ex5_4.sce create mode 100755 1223/CH5/EX5.6/Ex5_6.sce create mode 100755 1223/CH5/EX5.7/Ex5_7.sce create mode 100755 1223/CH5/EX5.8/Ex5_8.sce create mode 100755 1223/CH6/EX6.1/Ex6_1.sce create mode 100755 1223/CH6/EX6.11/Ex6_11.sce create mode 100755 1223/CH6/EX6.12/Ex6_12.sce create mode 100755 1223/CH6/EX6.13/Ex6_13.sce create mode 100755 1223/CH6/EX6.14/Ex6_14.sce create mode 100755 1223/CH6/EX6.15/Ex6_15.sce create mode 100755 1223/CH6/EX6.17/Ex6_17.sce create mode 100755 1223/CH6/EX6.18/Ex6_18.sce create mode 100755 1223/CH6/EX6.19/Ex6_19.sce create mode 100755 1223/CH6/EX6.2/Ex6_2.sce create mode 100755 1223/CH6/EX6.3/Ex6_3.sce create mode 100755 1223/CH6/EX6.4/Ex6_4.sce create mode 100755 1223/CH6/EX6.6/Ex6_6.sce create mode 100755 1223/CH6/EX6.7/Ex6_7.sce create mode 100755 1223/CH6/EX6.9/Ex6_9.sce create mode 100755 1223/CH7/EX7.1/Ex7_1.sce create mode 100755 1223/CH7/EX7.10/Ex7_10.sce create mode 100755 1223/CH7/EX7.12/Ex7_12.sce create mode 100755 1223/CH7/EX7.13/Ex7_13.sce create mode 100755 1223/CH7/EX7.14/Ex7_14.sce create mode 100755 1223/CH7/EX7.15/Ex7_15.sce create mode 100755 1223/CH7/EX7.16/Ex7_16.sce create mode 100755 1223/CH7/EX7.17/Ex7_17.sce create mode 100755 1223/CH7/EX7.2/Ex7_2.sce create mode 100755 1223/CH7/EX7.3/Ex7_3.sce create mode 100755 1223/CH7/EX7.4/Ex7_4.sce create mode 100755 1223/CH7/EX7.5/Ex7_5.sce create mode 100755 1223/CH7/EX7.6/Ex7_6.sce create mode 100755 1223/CH7/EX7.7/Ex7_7.sce create mode 100755 1223/CH7/EX7.8/Ex7_8.sce create mode 100755 1223/CH7/EX7.9/Ex7_9.sce create mode 100755 1223/CH8/EX8.11/Ex8_11.sce create mode 100755 1223/CH8/EX8.2/Ex8_2.sce create mode 100755 1223/CH8/EX8.3/Ex8_3.sce create mode 100755 1223/CH8/EX8.7/Ex8_7.sce create mode 100755 1223/CH8/EX8.8/Ex8_8.sce create mode 100755 1223/CH8/EX8.9/Ex8_9.sce create mode 100755 1223/CH9/EX9.5/Ex9_5.sce create mode 100755 1223/CH9/EX9.9/Ex9_9.sce (limited to '1223') diff --git a/1223/CH1/EX1.1/Ex1_1.sce b/1223/CH1/EX1.1/Ex1_1.sce new file mode 100755 index 000000000..cfabe9327 --- /dev/null +++ b/1223/CH1/EX1.1/Ex1_1.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 1.1 +T=300;//((°K)temperature) +//for silicon +B=5.23*10^(15);//Constant (per centimeter cube degree kelvin) +Eg=1.1;//bandgap energy in electrovolt(eV) +k=86*10^(-6);//Boltzmann's constant(eV per degree kelvin) +n_i=B*T^(3/2)*exp(-Eg/(2*k*T));//intrinsic carrier concentration +printf('intrinsic carrier concentration=%f cm^-3',n_i); diff --git a/1223/CH1/EX1.10/Ex1_10.sce b/1223/CH1/EX1.10/Ex1_10.sce new file mode 100755 index 000000000..64ecfc680 --- /dev/null +++ b/1223/CH1/EX1.10/Ex1_10.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 1.10 +V_Y=0.7;//(V)cut in voltage for pn junction +r_f=0; +V_PS=4;//(V) +R1=4,R2=4//(KOhm) from given circuit +I1=(V_PS-V_Y)/R1; +printf('\ncurrent through pn junction diode=%.3f mA\n',I1) +V_Y=0.3;//(V)cut in voltage for Schottky diode +I2=(V_PS-V_Y)/R2; +printf('\ncurrent through Schottky diode=%.3f mA\n',I2) diff --git a/1223/CH1/EX1.11/Ex1_11.sce b/1223/CH1/EX1.11/Ex1_11.sce new file mode 100755 index 000000000..9b1de53e6 --- /dev/null +++ b/1223/CH1/EX1.11/Ex1_11.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 1.11 +V_Z=5.6;//(V)Zener diode breakdown voltage +r_z=0;//(Ohm)Zener resistance +I=3;//(mA)current in the diode +V_PS=10;//(V) +//I=(V_PS-V_Z)/R +R=(V_PS-V_Z)/I; +printf('\nresistance=%.3f KOhm\n',R) diff --git a/1223/CH1/EX1.2/Ex1_2.sce b/1223/CH1/EX1.2/Ex1_2.sce new file mode 100755 index 000000000..9b5f48f55 --- /dev/null +++ b/1223/CH1/EX1.2/Ex1_2.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 1.2 +T=300;//(°K)Given Temperature +Nd=10^16;//(cm^-3)Donor concentration +n_i=1.5*10^10;//(cm^-3)intrinsic carrier concentration +//since Nd>>n_i +n_o=10^16;//(cm^-3)electron concentration +//by using formula ::n_i^2=n_o*p_o +p_o=(n_i)^2/Nd;//hole concentration +printf('\nelectron concentration= %.e cm^-3',n_o); +printf('\nhole concentration =%e cm^-3',p_o); diff --git a/1223/CH1/EX1.3/Ex1_3.sce b/1223/CH1/EX1.3/Ex1_3.sce new file mode 100755 index 000000000..112b5f20e --- /dev/null +++ b/1223/CH1/EX1.3/Ex1_3.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example1.3 +T=300;//(°K)Given Temperature +Na=10^16;//(cm^-3)Acceptor concentration in p region +Nd=10^17;//(cm^-3)Donor concentration in n region +n_i=1.5*10^10;//(cm^-3)intrinsic carrier concentration +V_T=0.026;//(Volt)terminal voltage +//built-in potential +V_bi=V_T*log(Na*Nd/(n_i)^2); +printf('\nthe built-in potential=%f V',V_bi) diff --git a/1223/CH1/EX1.4/Ex1_4.sce b/1223/CH1/EX1.4/Ex1_4.sce new file mode 100755 index 000000000..05f639543 --- /dev/null +++ b/1223/CH1/EX1.4/Ex1_4.sce @@ -0,0 +1,19 @@ +clear; +clc; +//Example 1.4 +T=300;//(°K)Given Temperature +Na=10^16;//(cm^-3)Acceptor concentration in p region +Nd=10^15;//(cm^-3)Donor concentration in n region +n_i=1.5*10^10;//(cm^-3)intrinsic carrier concentration +C_jo=0.5;//(pF)junction capacitance at zero applied voltage +V_T=0.026;//(Volt)terminal voltage +//built-in potential +V_bi=V_T*log(Na*Nd/(n_i)^2); +disp(V_bi,"the built-in potential(V)") +//the junction capacitance for +V_R=1;//(V)reverse bias voltage +Cj=C_jo*(1+V_R/V_bi)^(-1/2); +printf('\nthe junction capacitance for V_R=1V=%f pF\n',Cj) +V_R=5;//(V)reverse bias voltage +Cj=C_jo*(1+V_R/V_bi)^(-1/2); +printf('\nthe junction capacitance for V_R=5V =%f pF',Cj) diff --git a/1223/CH1/EX1.5/Ex1_5.sce b/1223/CH1/EX1.5/Ex1_5.sce new file mode 100755 index 000000000..4f99faae1 --- /dev/null +++ b/1223/CH1/EX1.5/Ex1_5.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 1.5 +T=300;//(°K)Given Temperature +V_T=0.026;//(Volt)terminal voltage +Is=10^-11;//(mA)reverse bias saturation current +n=1;//emission coefficient +v_D=+0.7;//(V)applied voltage +//pn junction is forward biased +i_D=Is*(exp(v_D/V_T)-1);//diode current +printf('\ndiode current=%f mA\n',i_D) +v_D=-0.7;//(V)pn junction is reverse biased +Is=10^-14//A; +i_D=Is*(exp(v_D/V_T)-1);//diode current +printf('\ndiode current=%e A',i_D) diff --git a/1223/CH1/EX1.6/Ex1_6.sce b/1223/CH1/EX1.6/Ex1_6.sce new file mode 100755 index 000000000..21c8afcff --- /dev/null +++ b/1223/CH1/EX1.6/Ex1_6.sce @@ -0,0 +1,22 @@ +clear; +clc; +//Example 1.6 +Is=10^-13;//(A)reverse saturation current +V_PS=5;//(V)applied voltage +R=2;//(KOhm)Resistance in circuit +V_T=0.026;//(Volt)terminal voltage +//V_PS=Is*R*(exp(V_D/V_T)-1)+V_D +//5=(10^-13)*(2000)*(exp(V_D/V_T)-1)+V_D +//let right side of equation be x=(10^-13)*(2000)*(exp(V_D/V_T)-1)+V_D +V_D=0.6;//(V) +x=(10^-13)*(2000)*(exp(V_D/V_T)-1)+V_D +//so the equation is not balanced +V_D=0.65;//(V) +x=(10^-13)*(2000)*(exp(V_D/V_T)-1)+V_D +//again equation is not balanced .solution for V_D is between 0.6V and 0.65V +V_D=0.619;//(V) +x=(10^-13)*(2000)*(exp(V_D/V_T)-1)+V_D +//essentially equal to the value of the left side of the equation i.e 5V +printf('\ndiode voltage=%f V',V_D) +I_D=(V_PS-V_D)/R;//(A)diode current +printf('\nthe diode current=%f mA',I_D) diff --git a/1223/CH1/EX1.7/Ex1_7.sce b/1223/CH1/EX1.7/Ex1_7.sce new file mode 100755 index 000000000..4210044e4 --- /dev/null +++ b/1223/CH1/EX1.7/Ex1_7.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 1.7 +//piecewise linear diode parameters +V_Y=0.6;//(V) +r_f=0.010;//(KOhm) +V_PS=5;//(V)applied voltage +R=2;//(KOhm)Resistance in circuit +I_D=(V_PS-V_Y)/(R+r_f);//(A)diode current +printf('\nthe diode current=%f mA\n',I_D) +V_D=V_Y+I_D*r_f;//(V)diode voltage +printf('\ndiode voltage=%f V',V_D) diff --git a/1223/CH1/EX1.9/Ex1_9.sce b/1223/CH1/EX1.9/Ex1_9.sce new file mode 100755 index 000000000..10d352790 --- /dev/null +++ b/1223/CH1/EX1.9/Ex1_9.sce @@ -0,0 +1,24 @@ +clear; +clc; +//Example 1.9 +//circuit and diode parameters +V_PS=5;//(V) +R=5;//(KOhm) +V_Y=0.6;//(V) +V_T=0.026;//(Volt)terminal voltage +v_i=0.1//*sin(wt)Volt +//dc analysis +I_DQ=(V_PS-V_Y)/R; +printf('\ndc quiescent current=%f mA\n',I_DQ) +V_O=I_DQ*R; +printf('\ndc output voltage=%f V\n',V_O) +//ac analysis +V_PS=0; +//Kirchhoff voltage law equation becomes +//v_i=i_d*r_d+i_d*R +r_d=V_T/I_DQ//(Ohm)small signal diode diffusion resistance +i_d=v_i/(r_d+R);//ac diode current +printf('\nac diode current=%fsin(wt) A\n',i_d) + +v_o=i_d*R;//ac output voltage +printf('\nac output voltage=%fsin(wt) V',v_o) diff --git a/1223/CH10/EX10.1/Ex10_1.sce b/1223/CH10/EX10.1/Ex10_1.sce new file mode 100755 index 000000000..4c174d2c6 --- /dev/null +++ b/1223/CH10/EX10.1/Ex10_1.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 10.1 +Vbe=0.6;//(V) +b=100; +V1=5; +Io=200;//micro A +Iref=Io*(1+2/b); +printf('\nreference current=%.2f microA\n',Iref) +Iref=Iref*0.001;//mA +R1=(V1-Vbe)/Iref; +printf('\nR1=%.2f KOhm\n',R1) diff --git a/1223/CH10/EX10.10/Ex10_10.sce b/1223/CH10/EX10.10/Ex10_10.sce new file mode 100755 index 000000000..a2d2fec50 --- /dev/null +++ b/1223/CH10/EX10.10/Ex10_10.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 10.10 +Vt=0.026; +Van=120; +Vap=80; +Av=-(1/Vt)/(1/Van+1/Vap); +printf('\nsmall signal open circuit voltage gain=%.2f\n',Av) diff --git a/1223/CH10/EX10.11/Ex10_11.sce b/1223/CH10/EX10.11/Ex10_11.sce new file mode 100755 index 000000000..444556b97 --- /dev/null +++ b/1223/CH10/EX10.11/Ex10_11.sce @@ -0,0 +1,16 @@ +clear; +clc; +//Example 10.11 +Van=120; +Vap=80; +Vt=0.026; +Ico=0.001; +//Rl=infinity +Av=-(1/Vt)/(1/Van+1/Vap); +printf('\nsmall signal open circuit voltage gain=%.2f\n',Av) +Rl=100; +Av1=-(1/Vt)/(1/Van+1/Vap+1/Rl); +printf('\nsmall signal open circuit voltage gain=%.2f\n',Av1) +Rl=10; +Av2=-(1/Vt)/(1/Van+1/Vap+1/Rl); +printf('\nsmall signal open circuit voltage gain=%.2f\n',Av2) diff --git a/1223/CH10/EX10.12/Ex10_12.sce b/1223/CH10/EX10.12/Ex10_12.sce new file mode 100755 index 000000000..14e0efb72 --- /dev/null +++ b/1223/CH10/EX10.12/Ex10_12.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 10.12 +//lambda=y +yn=0.01; +yp=0.01; +Vtn=1; +Kn=1; +Iref=0.5; +gm=2*sqrt(Kn*Iref); +printf('\ntransconductance =%.2fmA/V\n',gm) +go=yn*Iref; +printf('\nsmall signal transistor conductance=%.4f mA/V\n',go) +go2=go; +//for Rl=infinity +Av=-gm/(go+go2); +printf('\nvoltage gain=%.2f \n',Av) +Rl=100;//Kohm +gl=0.01; +Av=-gm/(go+gl+go2); +printf('\nvoltage gain=%.2f \n',Av) diff --git a/1223/CH10/EX10.2/Ex10_2.sce b/1223/CH10/EX10.2/Ex10_2.sce new file mode 100755 index 000000000..92b033d02 --- /dev/null +++ b/1223/CH10/EX10.2/Ex10_2.sce @@ -0,0 +1,22 @@ +clear; +clc; +//Example 10.2 +V1=5; +V2=-5; +R1=9.3; +b=50; +Vbe=0.7; +Va=80; +Iref=(V1-Vbe-V2)/R1; +printf('\nreference current =%.3fmA\n',Iref) +Io=Iref/(1+2/b); +printf('\noutput current=%.2fmA\n',Io) +ro=Va/Io; +printf('\nsmall signal output resistance=%.2f KOhm\n',ro) +//dIo=dVce2/ro +Vce2=0.7; +dIo=(V1-Vce2)/ro; +printf('\nchange in load current=%.3f mA\n',dIo) +x=dIo/Io; +x=x*100; +printf('\npercent change in output current=%.2f \n',x) diff --git a/1223/CH10/EX10.4/Ex10_4.sce b/1223/CH10/EX10.4/Ex10_4.sce new file mode 100755 index 000000000..f84c1ace2 --- /dev/null +++ b/1223/CH10/EX10.4/Ex10_4.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 10.4 +Iref=1; +Io=12*10^-3; +V1=5; +V2=-5; +Vt=0.026; +Vbe=0.7; +R1=(V1-Vbe-V2)/Iref; +printf('\nResistance R1 =%.2fKOhm\n',R1) +Re=(Vt/Io)*log(Iref/Io); +printf('\nResistance Re =%.2fKOhm\n',Re) +Vbe=Io*Re; +printf('\ndifference between two B-E voltages=%.2f V\n',Vbe) diff --git a/1223/CH10/EX10.5/Ex10_5.sce b/1223/CH10/EX10.5/Ex10_5.sce new file mode 100755 index 000000000..5c135fb1d --- /dev/null +++ b/1223/CH10/EX10.5/Ex10_5.sce @@ -0,0 +1,28 @@ +clear; +clc; +//Example 10.5 +V1=5; +V2=-5; +R1=9.3; +Re=9.580; +Vt=0.026; +b=100; +Vbe=0.7; +Va=80; +Io=12; +ro2=Va/Io; +printf('\nsmall signal collector resistance=%.2f MOhm\n',ro2) +Io=12*0.001;//mA +gm2=Io/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm2) +r=b*Vt/Io; +printf('\nResistance=%.2f KOhm\n',r) +Ro=ro2*(1+gm2*Re*r/(Re+r)); +printf('\noutput resistance=%.2f MOhm\n',Ro) +dVc2=4; +dIo=dVc2/Ro; +printf('\nchange in load current=%.3f microA\n',dIo) +Io=12;//micro A +x=dIo/Io; +x=x*100; +printf('\npercent change in output current =%.4f\n',x) diff --git a/1223/CH10/EX10.6/Ex10_6.sce b/1223/CH10/EX10.6/Ex10_6.sce new file mode 100755 index 000000000..da5f5b74a --- /dev/null +++ b/1223/CH10/EX10.6/Ex10_6.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 10.6 +V1=5; +V2=-5; +Vbe=0.6; +Veb=0.6; +Iq2=400*10^-3;//mA +Iref=200*10^-3;//mA +Iq1=Iref; +Iq3=Iq1; +Iq4=600*10^-6; +R1=(V1-Veb-Vbe-V2)/Iref; +printf('\nResistance R1=%.f KOhm\n',R1) diff --git a/1223/CH10/EX10.7/Ex10_7.sce b/1223/CH10/EX10.7/Ex10_7.sce new file mode 100755 index 000000000..4e54e8eae --- /dev/null +++ b/1223/CH10/EX10.7/Ex10_7.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 10.7 +//uox*Cox/2=x +x=20*10^-6;//A/V^2 +Vtn=1; +V1=5; +V2=0; +Iref=0.25*10^-3; +Io=0.1*10^-3; +Vgs2=1.85; +//let y=W/L +y2=Io/(x*(Vgs2-Vtn)^2); +printf('\nwidth per length 2=%.2f\n',y2) +y1=Iref/(x*(Vgs2-Vtn)^2); +printf('\nwidth per length 1=%.2f\n',y1) +Vgs1=Vgs2; +Vgs3=V1-V2-Vgs1; +printf('\nVgs3=%.2f V\n',Vgs3) +y3=Iref/(x*(Vgs3-Vtn)^2); +printf('\nwidth per length 3=%.2f\n',y3) diff --git a/1223/CH10/EX10.8/Ex10_8.sce b/1223/CH10/EX10.8/Ex10_8.sce new file mode 100755 index 000000000..3e84383c5 --- /dev/null +++ b/1223/CH10/EX10.8/Ex10_8.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 10.8 +Iref=100; +Io=Iref; +//lambda=y +y=0.01; +gm=0.5*10^+3; +ro=1/(y*Iref); +printf('\noutput resistance=%.2f MOhm\n',ro) +ro2=1; +ro4=1; +Ro=ro4+ro2*(1+gm*ro4); +printf('\noutput resistance of cascode circuit=%.2f MOhm\n',Ro) diff --git a/1223/CH10/EX10.9/Ex10_9.sce b/1223/CH10/EX10.9/Ex10_9.sce new file mode 100755 index 000000000..070731e28 --- /dev/null +++ b/1223/CH10/EX10.9/Ex10_9.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 10.9 +Idss1=2; +Idss2=1; +Vp1=-1.5; +Vp2=Vp1; +//lambda=y +y1=0.05; +y2=y1; +V2=-5; +Vds=1.5; +Vsmin=Vds+V2; +printf('\nminimum value of Vs=%.2f V\n',Vsmin) +Io=Idss2*(1+y1*Vds); +printf('\noutput current=%.2f mA\n',Io) +Vgs1=(1-sqrt(Io/Idss1))*Vp1; +printf('\ngate to source voltage of Q1=%.2f V\n',Vgs1) +V1=Vgs1+Vsmin; +printf('\nV1=%.2f V\n',V1) diff --git a/1223/CH11/EX11.1/Ex11_1.sce b/1223/CH11/EX11.1/Ex11_1.sce new file mode 100755 index 000000000..a460fea23 --- /dev/null +++ b/1223/CH11/EX11.1/Ex11_1.sce @@ -0,0 +1,26 @@ +clear; +clc; +//Example 11.1 +V1=10; +V2=-10; +Iq=1; +Rc=10; +Vbe=0.7; +iC1=Iq/2; +iC2=iC1; +printf('\ncollector currents =%.2fmA\n',iC1) +Vc1=V1-iC1*Rc; +Vc2=Vc1; +printf('\ncollector voltages =%.2fV\n',Vc1) +Vcm=0; +Ve=Vcm-Vbe; +Vce1=Vc1-Ve; +printf('\ncollector emitter voltage=%.2f V\n',Vce1) +Vcm=-5; +Ve=Vcm-Vbe; +Vce1=Vc1-Ve; +printf('\ncollector emitter voltage =%.2fV\n',Vce1) +Vcm=5; +Ve=Vcm-Vbe; +Vce1=Vc1-Ve; +printf('\ncollector emitter voltage=%.2f V\n',Vce1) diff --git a/1223/CH11/EX11.10/Ex11_10.sce b/1223/CH11/EX11.10/Ex11_10.sce new file mode 100755 index 000000000..c9f6fef92 --- /dev/null +++ b/1223/CH11/EX11.10/Ex11_10.sce @@ -0,0 +1,32 @@ +clear; +clc; +//Example 11.10 +Kn1=0.1; +Kn2=Kn1; +Kn3=0.1; +Kn4=Kn3; +R1=30; +Vtn=1; +Rd=16; +//I1=(20-Vgs4)/R1 and I1=Kn3*(Vgs4-Vtn)^2 +Vgs4=poly(0,'Vgs4') +p=poly([-1 -17 9],'Vgs4','c') +printf('\nroots=%.2fV\n',roots(p)) +Vgs4=2.40; +I1=(20-Vgs4)/R1; +printf('\nI1=%.2f mA\n',I1) +Iq=I1; +Id1=Iq/2; +printf('\nId1 and Id2 =%.2fmA\n',Id1) +Vgs1=sqrt(Id1/Kn1)+Vtn; +printf('\nVgs1 and Vgs2 =%.2fV\n',Vgs1) +vo1=10-Id1*Rd; +printf('\nvo1 and vo2=%.2f V\n',vo1) +Vds1=Vgs1-Vtn; +printf('\nVds1=Vds2=Vds1(sat)=%.2f V\n',Vds1) +Vcm=vo1-Vds1+Vgs1; +printf('\nVcm max=%.2f V\n',Vcm) +Vds4=Vgs4-Vtn; +printf('\nVds4=%.2f V\n',Vds4) +Vcm2=Vgs1+Vds4-10; +printf('\nVcm min=%.2fV\n',Vcm2) diff --git a/1223/CH11/EX11.11/Ex11_11.sce b/1223/CH11/EX11.11/Ex11_11.sce new file mode 100755 index 000000000..b0307023d --- /dev/null +++ b/1223/CH11/EX11.11/Ex11_11.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 11.11 +Kn=0.5; +Iq=1; +Vt=0.026; +//transconductance of the MOSFET +gm=2*sqrt(Kn*Iq/2); +printf('\ntransconductance=%.3f mA/V\n',gm) +//transconductance of the bipolar transistor +gm=Iq/(2*Vt); +printf('\ntransconductance=%.3f mA/V\n',gm) diff --git a/1223/CH11/EX11.12/Ex11_12.sce b/1223/CH11/EX11.12/Ex11_12.sce new file mode 100755 index 000000000..ae72f3dfc --- /dev/null +++ b/1223/CH11/EX11.12/Ex11_12.sce @@ -0,0 +1,16 @@ +clear; +clc; +//Example 11.12 +Iq=0.587; +Kn=1; +Rd=16; +//lambda=y +y=0.01; +Ro=1/(y*Iq); +printf('\noutput resistance =%.2fKOhm\n',Ro) +Ad=sqrt(Kn*Iq/2)*Rd; +printf('\ndifferential mode voltage gain=%.2f \n',Ad) +Acm=-sqrt(2*Kn*Iq)*Rd/(1+2*sqrt(2*Kn*Iq)*Ro); +printf('\ncommon mode voltage gain=%.2f\n',Acm) +CMRR=20*log10(-Ad/Acm); +printf('\ncommon mode rejection ratio=%.2f dB\n',CMRR) diff --git a/1223/CH11/EX11.13/Ex11_13.sce b/1223/CH11/EX11.13/Ex11_13.sce new file mode 100755 index 000000000..4f3123ce8 --- /dev/null +++ b/1223/CH11/EX11.13/Ex11_13.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 11.13 +Iq=0.2; +Va=100; +Va2=Va; +Va4=Va; +Rl=100; +Vt=0.026; +Ad=(1/Vt)/(1/Va2+1/Va4); +printf('\nopen circuit voltage gain=%.2f\n',Ad) +Ad=(Iq/(2*Vt))/(Iq/(2*Va2)+Iq/(2*Va4)+1/Rl); +printf('\nvoltage gain=%.2f\n',Ad) diff --git a/1223/CH11/EX11.15/Ex11_15.sce b/1223/CH11/EX11.15/Ex11_15.sce new file mode 100755 index 000000000..28d88be30 --- /dev/null +++ b/1223/CH11/EX11.15/Ex11_15.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 11.15 +Kn=0.2; +Idq=0.1; +ro4=1000;//Kohm +ro6=1000;//KOhm +ro2=ro4; +//lambda=y +y=0.01; +gm=2*sqrt(Kn*Idq); +printf('\ntransconductance=%.3f mA/V\n',gm) +ro=1/(y*Idq); +printf('\noutput resistance=%.2f KOhm\n',ro) +Ro=ro4+ro6*(1+gm*ro); +Ro=Ro*0.001;//Mohm +printf('\noutput resistance of the cascode active load=%.2fMohm\n',Ro) +Ro=Ro*1000;//KOhm +Ad=gm*ro2*Ro/(ro4+Ro); +printf('\ndifferential mode voltage gain=%.2f\n',Ad) diff --git a/1223/CH11/EX11.16/Ex11_16.sce b/1223/CH11/EX11.16/Ex11_16.sce new file mode 100755 index 000000000..08892dcc2 --- /dev/null +++ b/1223/CH11/EX11.16/Ex11_16.sce @@ -0,0 +1,35 @@ +clear; +clc; +//Example 11.16 +Iq=0.2; +Ic1=Iq; +Icb=1; +R4=10; +R3=0.2; +b=100; +Va=100; +Vt=0.026; +Ri=2*(1+b)*b*Vt/Iq; +Ri=Ri*0.001;//MOhm +printf('\ninput resistance=%.2f MOhm\n',Ri) +R11=b*Vt/Iq; +printf('\nresistance R11=%.2f KOhm\n',R11) +Re=R11*R3/(R11+R3); +printf('\nRe=%.2f KOhm\n',Re) +gm11=Iq/Vt; +printf('\ngm11=%.3f mA/V\n',gm11) +ro11=Va/Iq; +printf('\nro11 =%.2fKOhm\n',ro11) +Rc11=ro11*(1+gm11*Re); +Rc11=Rc11*0.001;//MOhm +printf('\nRc11=%.2f MOhm\n',Rc11) +r8=b*Vt/Icb; +printf('\nresistance=%.2fKOhm\n',r8) +//answer of following given in the book is wrong +Rb8=r8+(1+b)*R4; +Rb8=Rb8*0.001;//MOhm +printf('\nRb8 =%.2fMOhm\n',Rb8) +Rl7=Rc11*Rb8/(Rc11+Rb8); +printf('\nRl7=%.2f MOhm\n',Rl7) +Av=Iq*Rl7/(2*Vt); +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH11/EX11.17/Ex11_17.sce b/1223/CH11/EX11.17/Ex11_17.sce new file mode 100755 index 000000000..e8c46d6c4 --- /dev/null +++ b/1223/CH11/EX11.17/Ex11_17.sce @@ -0,0 +1,16 @@ +clear; +clc; +//Example 11.17 +Va=100; +R4=10; +b=100; +Rc11=1.26*10^3; +r8=2.6; +Iq=0.2; +Rc7=Va/Iq; +printf('\nRc7=%.2f KOhm\n',Rc7) +Z=Rc11*Rc7/(Rc11+Rc7); +printf('\nZ=%.2f KOhm\n',Z) +x=(r8+Z)/(1+b); +Ro=R4*x/(R4+x); +printf('\noutput resistance=%.2f KOhm\n',Ro) diff --git a/1223/CH11/EX11.19/Ex11_19.sce b/1223/CH11/EX11.19/Ex11_19.sce new file mode 100755 index 000000000..5ee9b28ba --- /dev/null +++ b/1223/CH11/EX11.19/Ex11_19.sce @@ -0,0 +1,35 @@ +clear; +clc; +//Example 11.19 +b=100; +Vt=0.026; +Rc=20; +Ir4=0.4; +Iq=Ir4; +Ir6=Ir4; +r4=b*Vt/Ir4; +printf('\nr4=%.2f KOhm\n',r4) +r3=b^2*Vt/Ir4; +printf('\nr3=%.2f KOhm\n',r3) +Ri2=r3+(1+b)*r4; +printf('\ninput resistance=%.2f KOhm\n',Ri2) +gm=Iq/(2*Vt); +printf('\ntransconductance=%.3f mA/V\n',gm) +Ad1=gm*Rc*Ri2/(2*(Rc+Ri2)); +printf('\ngain of differential amplifier stage=%.2f\n',Ad1) +r5=b*Vt/Ir6; +printf('\nr5 =%.2fKOhm\n',r5) +Ir7=2; +r6=b*Vt/Ir7; +printf('\nr6=%.2f KOhm\n',r6) +R6=16.5; +R7=5; +Ri3=r5+(1+b)*(R6+r6+(1+b)*R7); +Ri3=Ri3*0.001;//MOhm +printf('\nRi3=%.2f MOhm\n',Ri3) +Rs=5; +A2=Ir4*Rs/(2*Vt); +printf('\nvoltage gain A2=%.2f\n',A2) +A3=1;//vo/vo3 +Ad=Ad1*A2*A3; +printf('\nsmall signal voltage gain=%.2f\n',Ad) diff --git a/1223/CH11/EX11.20/Ex11_20.sce b/1223/CH11/EX11.20/Ex11_20.sce new file mode 100755 index 000000000..ee0a7f943 --- /dev/null +++ b/1223/CH11/EX11.20/Ex11_20.sce @@ -0,0 +1,16 @@ +clear; +clc; +//Example 11.20 +Ro=10000000; +Co=1*10^-12; +Rb=500; +r=10000; +b=100; +f=1/(2*%pi*Ro*Co); +f=f*0.001;//KHz +printf('\nfrequency of the zero=%.2f KHz\n',f) +Req=Ro*(1+Rb/r)/(1+Rb/r+2*(1+b)*Ro/r); +printf('\nReq=%.2f Ohm\n',Req) +f=1/(2*%pi*Req*Co); +f=f*10^-9;//GHz +printf('\nfrequency of the pole=%.2f GHz\n',f) diff --git a/1223/CH11/EX11.3/Ex11_3.sce b/1223/CH11/EX11.3/Ex11_3.sce new file mode 100755 index 000000000..c17381010 --- /dev/null +++ b/1223/CH11/EX11.3/Ex11_3.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 11.3 +V1=10; +V2=-10; +Iq=0.8*10^-3; +Rc=12000; +Ro=25000; +b=100; +Vt=0.026; +Ad=Iq*Rc/(4*Vt); +printf('\ndifferential gain=%.3f\n',Ad) +Acm=-(Iq*Rc/(2*Vt))/(1+(1+b)*Iq*Ro/(Vt*b)); +printf('\ncommon mode gain=%.3f\n',Acm) diff --git a/1223/CH11/EX11.7/Ex11_7.sce b/1223/CH11/EX11.7/Ex11_7.sce new file mode 100755 index 000000000..7f520a16d --- /dev/null +++ b/1223/CH11/EX11.7/Ex11_7.sce @@ -0,0 +1,9 @@ +clear; +clc; +//Example 11.7 +Ad=92.3; +Acm=0.237;//mod of Acm +CMRR=Ad/Acm; +printf('\ncommon mode rejection ratio=%.2f\n',CMRR) +CMRRdB=20*log10(CMRR); +printf('\nCMRR in decibels=%.2f dB\n',CMRRdB) diff --git a/1223/CH11/EX11.8/Ex11_8.sce b/1223/CH11/EX11.8/Ex11_8.sce new file mode 100755 index 000000000..5cba74459 --- /dev/null +++ b/1223/CH11/EX11.8/Ex11_8.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 11.8 +CMRRdB=90;//dB +CMRR=3.16*10^4; +b=100; +Vt=0.026; +Iq=0.8; +Ro=(2*CMRR-1)*Vt*b/((1+b)*Iq); +Ro=Ro*10^-3;//Mohm +disp(Ro,"output resistance (MOhm)") diff --git a/1223/CH11/EX11.9/Ex11_9.sce b/1223/CH11/EX11.9/Ex11_9.sce new file mode 100755 index 000000000..4deb8ba6f --- /dev/null +++ b/1223/CH11/EX11.9/Ex11_9.sce @@ -0,0 +1,22 @@ +clear; +clc; +//Example 11.9 +b=100; +Vbe=0.7; +Va=100; +Vt=0.026; +Iref=0.5; +Iq=Iref; +I1=Iq/2 +Icq=I1; +r=b*Vt/Icq; +printf('\nsmall signal parameter=%.2f KOhm\n',r) +ro=Va/Icq; +printf('\nro=%.2f KOhm\n',ro) +Ro=Va/Iq; +printf('\noutput resistance of Q4=%.2f KOhm\n',Ro) +Rid=2*r; +printf('\ndifferential mode input resistance =%.2fKOhm\n',Rid) +Ricm=(1+b)*(Ro*ro/2)/(Ro+ro/2); +Ricm=Ricm*0.001;//Mohm +printf('\ncommon mode input resistance=%.2f MOhm\n',Ricm) diff --git a/1223/CH12/EX12.1/Ex12_1.sce b/1223/CH12/EX12.1/Ex12_1.sce new file mode 100755 index 000000000..457d63894 --- /dev/null +++ b/1223/CH12/EX12.1/Ex12_1.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 12.1 +A=10^5;//open loop gain +Af=50;//closed loop gain +b=(A/Af-1)/A; +printf('\nfeedback transfer function=%f\n',b) +A=-10^5; +Af=-50; +b=(A/Af-1)/A; +printf('\nfeedback transfer function=%f\n',b) diff --git a/1223/CH12/EX12.11/Ex12_11.sce b/1223/CH12/EX12.11/Ex12_11.sce new file mode 100755 index 000000000..386f757d4 --- /dev/null +++ b/1223/CH12/EX12.11/Ex12_11.sce @@ -0,0 +1,25 @@ +clear; +clc; +//Example 12.11 +hFE=100;//transistor parameter +Vbe=0.7; +Vcc=10; +R1=55; +R2=12; +Re=1; +Rc=4; +Rl=4; +Icq=0.983; +Vceq=5.08; +Vt=0.026; +r=hFE*Vt/Icq; +printf('\nsmall signal parameter resistance=%.2f KOhm\n',r) +gm=Icq/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm) +Agf=-gm*(Rc/(Rc+Rl))/(1+Re*(gm+1/r)); +printf('\ntransconductance transfer function=%.3f mA/V\n',Agf) +//as first approximation +Agf2=-1/Re; +printf('\nAgf=%.2f mA/V\n',Agf2) +Avf=Agf*Rl; +printf('\nvoltage gain=%.2f\n',Avf) diff --git a/1223/CH12/EX12.16/Ex12_16.sce b/1223/CH12/EX12.16/Ex12_16.sce new file mode 100755 index 000000000..067c17d40 --- /dev/null +++ b/1223/CH12/EX12.16/Ex12_16.sce @@ -0,0 +1,22 @@ +clear; +clc; +//Example 12.15 +//Determine the loop gain fig12.45(a) +hFE=100; +Vbe=0.7; +Icq=0.492; +r=5.28; +gm=18.9; +Rs=10; +R1=51; +R2=5.5; +Re=0.500; +Rc=10; +Rf=82; +x=r*R2/(r+R2); +y=R1*x/(x+R1); +t=Rs*y/(y+Rs); +Req=t; +printf('\nequivalent resistance=%.2f KOhm\n',t) +T=gm*Rc*Req/(Rc+Rf+Req); +printf('\nthe loop gain=%.2f\n',T) diff --git a/1223/CH12/EX12.19/Ex12_19.sce b/1223/CH12/EX12.19/Ex12_19.sce new file mode 100755 index 000000000..59487c6fc --- /dev/null +++ b/1223/CH12/EX12.19/Ex12_19.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 12.19 +//T=b*100/(sqrt(1+(f/10^5)^2) angle=-3tan^-1(f/10^5) +//stable at f180 at which phase becomes -180 degrees +//-3*atan(f180/10^5)=-180 +f180=tand(180/3)*10^5; +printf('\nfrequency at -180 degree=%ef Hz\n',f180) +b=0.2; +T=b*100/(sqrt(1+(f180/10^5)^2))^3; +printf('\nmagnitude of the loop gain=%.2f\n',T) +b=0.02; +T=b*100/(sqrt(1+(f180/10^5)^2))^3; +printf('\nmagnitude of the loop gain=%.2f\n',T) diff --git a/1223/CH12/EX12.2/Ex12_2.sce b/1223/CH12/EX12.2/Ex12_2.sce new file mode 100755 index 000000000..b80559b2f --- /dev/null +++ b/1223/CH12/EX12.2/Ex12_2.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 12.2 +A=10^5; +Af=50; +b=0.019999; +dA=10^4; +dAf=Af*dA/(A*(1+b*A)); +printf('\ndAf=%e\n',dAf) +//x=dAf/Af +x=dAf/Af; +x=x*100; +printf('\npercent change dAf/Af=%f\n',x) diff --git a/1223/CH12/EX12.22/Ex12_22.sce b/1223/CH12/EX12.22/Ex12_22.sce new file mode 100755 index 000000000..caab2aad9 --- /dev/null +++ b/1223/CH12/EX12.22/Ex12_22.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 12.22 +Ao=10^6; +fPD=0.010;//KHz +b=0.01; +Af=Ao/(1+b*Ao); +printf('\nlow frequency closed loop gain=%.2f\n',Af) +fc=fPD*(1+b*Ao); +printf('\nclosed loop 3dB frequency=%.2f KHz\n',fc) diff --git a/1223/CH12/EX12.23/Ex12_23.sce b/1223/CH12/EX12.23/Ex12_23.sce new file mode 100755 index 000000000..740d94362 --- /dev/null +++ b/1223/CH12/EX12.23/Ex12_23.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 12.23 +A=10^3; +Cf=30*10^-12;//feedback capacitor (F) +R2=5*10^5; +Cm=Cf*(1+A); +printf('\nMiller capacitance=%e F\n',Cm) +fp=1/(2*%pi*R2*Cm); +printf('\ndominant pole frequency =%.2fHz\n',fp) diff --git a/1223/CH12/EX12.3/Ex12_3.sce b/1223/CH12/EX12.3/Ex12_3.sce new file mode 100755 index 000000000..a13e4756b --- /dev/null +++ b/1223/CH12/EX12.3/Ex12_3.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 12.3 +Ao=10^4; +wh=2*%pi*100;//rad/s +Af=50; +//x=(1+bAo) +x=Ao/Af; +printf('\n(1+bAo)=%f\n',x) +wfh=wh*x; +printf('\nclosed loop bandwidth=%f\n',wfh) diff --git a/1223/CH12/EX12.5/Ex12_5.sce b/1223/CH12/EX12.5/Ex12_5.sce new file mode 100755 index 000000000..8456b3ea8 --- /dev/null +++ b/1223/CH12/EX12.5/Ex12_5.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 12.5 +Av=10^5; +Avf=50; +Rf=10;//Kohm +Ro=20000;//Ohm +//x=(1+bvAv) +x=Av/Avf; +printf('\n(1+bvAv)=%.e\n',x) +Rif=Rf*x; +Rif=Rif*0.001;//MOhm +printf('\ninput resistance=%.2f MOhm\n',Rif) +Rof=Ro/x; +printf('\noutput resistance=%.2f Ohm\n',Rof) diff --git a/1223/CH12/EX12.6/Ex12_6.sce b/1223/CH12/EX12.6/Ex12_6.sce new file mode 100755 index 000000000..d491874a1 --- /dev/null +++ b/1223/CH12/EX12.6/Ex12_6.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 12.6 +Af=10^5; +Aif=50; +Rf=10000; +Ro=20; +//x=(1+biAi) +x=Af/Aif; +printf('\n(1+biAi)=%.e\n',x) +Rif=Rf/x; +printf('\ninput resistance =%.2fOhm\n',Rif) +Rof=Ro*x; +Rof=Rof*0.001;//Mohm +printf('\noutput resistance=%.2f MOhm\n',Rof) diff --git a/1223/CH12/EX12.7/Ex12_7.sce b/1223/CH12/EX12.7/Ex12_7.sce new file mode 100755 index 000000000..6edce62f2 --- /dev/null +++ b/1223/CH12/EX12.7/Ex12_7.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 12.7 +Ri=50; +R1=10; +R2=90; +Av=10^4; +bv=1/(1+R2/R1); +printf('\nfeedback transfer function=%.2f\n',bv) +Rif=Ri*(1+bv*Av); +Rif=Rif*0.001;//Mohm +printf('\ninput resistance=%.2f MOhm\n',Rif) diff --git a/1223/CH13/EX13.1/Ex13_1.sce b/1223/CH13/EX13.1/Ex13_1.sce new file mode 100755 index 000000000..4f0909959 --- /dev/null +++ b/1223/CH13/EX13.1/Ex13_1.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 13.1 +V1=15;//positive supply voltage +V2=-15;//negative supply voltage +Veb12=0.6; +Vbe11=0.6; +Rs=40; +Iref=(V1-V2-Veb12-Vbe11)/Rs; +printf('\nreference current=%.2f mA\n',Iref) +Ic10=19; +Ic1=Ic10/2; +printf('\nIc1=Ic2=Ic3=Ic4= %.3fmicroA\n',Ic1) +Ic1=Ic1*0.001;//mA +Vbe7=0.6; +Vbe6=0.6; +Ic6=Ic1; +R2=1; +Vc6=Vbe7+Vbe6+Ic6*R2+V2; +printf('\nvoltage at collector of Q6=%.2f V\n',Vc6) diff --git a/1223/CH13/EX13.10/Ex13_10.sce b/1223/CH13/EX13.10/Ex13_10.sce new file mode 100755 index 000000000..03750db9b --- /dev/null +++ b/1223/CH13/EX13.10/Ex13_10.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 13.10 +Iref=100; +Kn=80; +Kp=40; +//W/L=x +x=25; +//lambda=y +y=0.02; +Id=Iref/2; +gm1=2*sqrt(Kp*x*Id/2); +printf('\ntransconductance gm1=gm8=%.3f microA/V\n',gm1) +gm6=2*sqrt(Kn*x*Id/2); +printf('\ntransconductance=%.3f microA/V\n',gm6) +ro1=1/(y*Id); +ro8=ro1; +ro6=ro1; +ro10=ro1; +printf('\noutput resistance ro1=ro8=ro6=ro10=%.3f MOhm\n',ro1) +Id4=Iref; +ro4=1/(y*Id4); +printf('\nro4=%.3f MOhm\n',ro4) +Ro8=gm1*ro8*ro10; +printf('\ncomposite output resistances =%.2f MOhm\n',Ro8) +Ro6=gm6*ro6*ro4*ro1/(ro4+ro1); +printf('\ncomposite output resistances=%.2f MOhm\n',Ro6) +Ad=gm1*Ro6*Ro8/(Ro6+Ro8); +printf('\ndifferential voltage gain=%.2f\n',Ad) diff --git a/1223/CH13/EX13.12/Ex13_12.sce b/1223/CH13/EX13.12/Ex13_12.sce new file mode 100755 index 000000000..448cd70ce --- /dev/null +++ b/1223/CH13/EX13.12/Ex13_12.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 13.12 +Kp=0.6; +bn=200; +Va=50; +Vt=0.026; +Ic13=0.20; +Ri2=bn*Vt/Ic13; +printf('\ninput resistance to the gain stage=%.2f KOhm\n',Ri2) +Iq5=Ic13; +Ad=sqrt(2*Kp*Iq5)*Ri2; +printf('\nsmall signal voltage gain=%.2f\n',Ad) diff --git a/1223/CH13/EX13.13/Ex13_13.sce b/1223/CH13/EX13.13/Ex13_13.sce new file mode 100755 index 000000000..d3f138c8b --- /dev/null +++ b/1223/CH13/EX13.13/Ex13_13.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 13.13 +Va=150; +Vt=0.026; +Ic13=0.2; +gm13=Ic13/Vt; +printf('\ntransconductance=%.2f mA/V\n',gm13) +ro13=Va/Ic13; +printf('\noutput resistance=%.2f KOhm\n',ro13) +Av2=gm13*ro13; +printf('\nvoltage gain=%.2f \n',Av2) diff --git a/1223/CH13/EX13.14/Ex13_14.sce b/1223/CH13/EX13.14/Ex13_14.sce new file mode 100755 index 000000000..4054325ef --- /dev/null +++ b/1223/CH13/EX13.14/Ex13_14.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 13.14 +Av2=5768; +C1=12; +Ci=C1*(1+Av2); +printf('\neffective input capacitance=%.2f pF\n',Ci) +Ri2=26000;//gain stage input resistance (Ohm) +Ci=Ci*10^-12;//F +fPD=1/(2*%pi*Ri2*Ci); +printf('\ndominant pole frequency=%.f Hz\n',fPD) +Av=73254; +fT=fPD*Av; +fT=fT*10^-6;//MHz +printf('\nunity gain bandwidth=%.2f MHz\n',fT) diff --git a/1223/CH13/EX13.2/Ex13_2.sce b/1223/CH13/EX13.2/Ex13_2.sce new file mode 100755 index 000000000..8beede8e4 --- /dev/null +++ b/1223/CH13/EX13.2/Ex13_2.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 13.2 +Iref=0.72; +Ic17=0.75*Iref; +printf('\ncollector currents in Q17=%.2f mA\n',Ic17) +b=200; +Ib17=Ic17/b; +Ie17=Ic17; +R8=0.100; +Vbe17=0.6; +R9=50; +Ic16=Ib17+(Ie17*R8+Vbe17)/R9; +Ic16=Ic16*1000; +printf('\ncollector current in Q16=%.2f microA\n',Ic16) diff --git a/1223/CH13/EX13.3/Ex13_3.sce b/1223/CH13/EX13.3/Ex13_3.sce new file mode 100755 index 000000000..18704e15f --- /dev/null +++ b/1223/CH13/EX13.3/Ex13_3.sce @@ -0,0 +1,34 @@ +clear; +clc; +//Example 13.3 +Is1=10^-14;//reverse saturation currents for Q18 Q19 +Is2=3*10^-14;//reverse saturation currents for Q14 Q20 +Iref=0.72; +Vt=0.026; +Ic13a=0.25*Iref; +printf('\nIc13a=%.2f mA\n',Ic13a) +Vbe19=0.6; +R10=50; +Ir1o=Vbe19/R10; +printf('\ncurrent in Ro=%.3f mA\n',Ir1o) +Ic19=Ic13a-Ir1o; +printf('\ncurrent in Q19 =%.3fmA\n',Ic19) +Ic19=Ic19*0.001;//A +Vbe19=Vt*log(Ic19/Is1); +printf('\nB-E voltage of Q19=%.2f V\n',Vbe19) +b=200; +Ic19=Ic19*10^6;//micro A +Iv19=Ic19*1000; +Ib18=Ic19/b; +Ir1o=Ir1o*1000; +printf('\nbase current in Q18=%.3f microA\n',Ib18) +Ic18=Ir1o+Ib18; +printf('\ncurrents in Q18=%.3f microA\n',Ic18) +Ic18=Ic18*10^-6; +Vbe18=Vt*log(Ic18/Is1); +printf('\nB-E voltage of Q18=%.2f V\n',Vbe18) +Vbb=Vbe18+Vbe19; +printf('\nvoltage difference Vbb=%.2f V\n',Vbb) +Ic14=Is2*exp(Vbb/(2*Vt)); +Ic14=Ic14*10^6;//micro A +printf('\nquiescent currents in Q14 and Q20 =%.fmicroA\n',Ic14) diff --git a/1223/CH13/EX13.4/Ex13_4.sce b/1223/CH13/EX13.4/Ex13_4.sce new file mode 100755 index 000000000..510409d3b --- /dev/null +++ b/1223/CH13/EX13.4/Ex13_4.sce @@ -0,0 +1,40 @@ +clear; +clc; +//Example 13.4 +b=200; +Va=50 +Vt=0.026; +R2=1; +Ic6=0.0095; +Ic4=Ic6; +Ic16=0.0158; +Ic17=0.54; +r17=b*Vt/Ic17; +printf('\ninput resistance to gain stage=%.2f KOhm\n',r17) +R9=50; +R8=0.100; +x=r17+(1+b)*R8; +Re=x*R9/(x+R9); +printf('\nRe=%.3f KOhm\n',Re) +r16=b*Vt/Ic16; +printf('\nr16=%.2f KOhm\n',r16) +Ri2=r16+(1+b)*Re; +Ri2=Ri2*0.001;//MOhm +printf('\nRi2=%.2f KOhm\n',Ri2) +r6=b*Vt/Ic6; +printf('\nresistance of the active load=%.2f KOhm\n',r6) +gm=Ic6/Vt; +printf('\ntransconductance =%.3fmA/V\n',gm) +ro6=Va/Ic6; +ro6=ro6*0.001;//MOhm +printf('\nro6=%.2f MOhm\n',ro6) +R=ro6*(1+gm*R2*r6/(R2+r6)); +printf('\neffective resistance of active load=%.2f MOhm\n',R) +ro4=Va/Ic4; +ro4=ro4*0.001;//Mohm +printf('\nResistance ro4=%.2f KOhm\n',ro4) +Icq=9.5; +x=Ri2*R/(R+Ri2); +y=ro4*x/(ro4+x); +Ad=-y*Icq/Vt; +printf('\nsmall signal differential voltage gain=%.2f\n',Ad) diff --git a/1223/CH13/EX13.5/Ex13_5.sce b/1223/CH13/EX13.5/Ex13_5.sce new file mode 100755 index 000000000..d22f66062 --- /dev/null +++ b/1223/CH13/EX13.5/Ex13_5.sce @@ -0,0 +1,36 @@ +clear; +clc; +//Example 13.5 +bp=50; +bn=200; +Va=50; +R9=50; +R8=0.100; +Rl=2; +Vt=0.026; +Ri2=4070; +Ic20=0.138; +r20=bp*Vt/Ic20; +printf('\nr20=%.2f KOhm\n',r20) +R20=r20+(1+bp)*Rl; +printf('\nR20=%.2f KOhm\n',R20) +Ic13A=0.18; +R19=Va/Ic13A; +printf('\nR19=%.2f KOhm\n',R19) +r22=bp*Vt/Ic13A; +printf('\nr22=%.2f KOhm\n',r22) +Ri3=r22+(1+bp)*R19*R20/(R19+R20); +Ri3=Ri3*0.001;//MOhm +printf('\ninput resistance to the output stage=%.2f MOhm\n',Ri3) +Ic13B=0.54; +R=Va/Ic13B; +printf('\neffective resistance of the active load=%.2f KOhm\n',R) +Ic17=Ic13B; +R17=Va/Ic17; +printf('\noutput resistance Ro17 =%.2fKOhm\n',R17) +Ri3=Ri3*1000;//KOhm +r17=9.63; +x=R17*Ri3/(Ri3+R17); +y=x*R/(R+x); +A=-bn*R9*(1+bn)*y/(Ri2*(R9+r17+(1+bn)*R8)); +printf('\nsmall signal voltage gain=%.2f\n',A) diff --git a/1223/CH13/EX13.6/Ex13_6.sce b/1223/CH13/EX13.6/Ex13_6.sce new file mode 100755 index 000000000..4e64f889d --- /dev/null +++ b/1223/CH13/EX13.6/Ex13_6.sce @@ -0,0 +1,27 @@ +clear; +clc; +//Example 13.6 +Ic20=2; +bn=200; +bp=50; +Va=50; +r17=9.63; +r22=7.22; +R20=0.260; +gm17=20.8; +ro17=92.6; +Ro13B=92.6; +R8=0.100; +Rc17=ro17*(1+gm17*R8*r17/(R8+r17)); +printf('\nRc17=%.2f KOhm\n',Rc17) +Rc22=(r22+Rc17*Ro13B/(Rc17+Ro13B))/(1+bp); +printf('\nRc22=%.2f KOhm\n',Rc22) +Ic13A=0.18; +Rc19=Va/Ic13A; +printf('\nRc19=%.2f KOhm\n',Rc19) +Rc20=(R20+Rc22*Rc19/(Rc22+Rc19))/(1+bp); +printf('\nRc20=%.5f KOhm\n',Rc20) +Rc20=Rc20*1000;//Ohm +R3=22; +Ro=R3+Rc20; +printf('\noutput resistance=%.2f Ohm\n',Ro) diff --git a/1223/CH13/EX13.7/Ex13_7.sce b/1223/CH13/EX13.7/Ex13_7.sce new file mode 100755 index 000000000..1b2b8f574 --- /dev/null +++ b/1223/CH13/EX13.7/Ex13_7.sce @@ -0,0 +1,18 @@ +clear; +clc; +//Example 13.7 +Av2=285; +C1=30; +Ci=C1*(1+Av2); +printf('\ninput capacitance=%.2f pF\n',Ci) +Ri2=4.07; +Ract=7.18; +ro4=5.26; +Ro1=Ract*ro4/(Ract+ro4); +printf('\ngate stage input resistance=%.2fMOhm \n',Ro1) +Req=Ro1*Ri2/(Ri2+Ro1); +printf('\nequivalent resistance=%.2f MOhm\n',Req) +Req=Req*10^6;//Ohm +Ci=Ci*10^-12;//F +fPD=1/(2*%pi*Req*Ci); +printf('\ndominant pole frequency =%.2fHz\n',fPD) diff --git a/1223/CH13/EX13.9/Ex13_9.sce b/1223/CH13/EX13.9/Ex13_9.sce new file mode 100755 index 000000000..aa02379e8 --- /dev/null +++ b/1223/CH13/EX13.9/Ex13_9.sce @@ -0,0 +1,33 @@ +clear; +clc; +//Example 13.9 +//lambda=y +y=0.02; +//W/L=x and u*Cox/2=t +x=12.5; +t=10; +Kp1=x*t; +printf('\nconduction parameters of M1 and M2=%.fmicroA/V^2\n',Kp1) +Kp1=Kp1*0.001;//mA/V^2 +Id=0.0199; +ro2=1/(y*Id); +ro2=ro2*0.001;//Mohm +printf('\noutput resistance=%.2f MOhm\n',ro2) +Iq=0.0397; +ro2=ro2*1000;//Kohm +ro4=ro2; +Ad=sqrt(2*Kp1*Iq)*ro2*ro4/(ro2+ro4); +printf('\nthe gain of input stage=%.2f \n',Ad) +Kn7=0.250; +Id7=Iq; +gm7=2*sqrt(Kn7*Id7) +printf('\ntransconductance of M7=%.2f mA/V\n',gm7) +ro7=1/(y*Id7); +ro7=ro7*0.001; +printf('\noutput resistance of M7 and M8 =%.2fMOhm\n',ro7) +ro7=ro7*1000;//Kohm +ro8=ro7; +Av2=gm7*ro7*ro8/(ro7+ro8); +printf('\ngain of the second stage=%.2f\n',Av2) +Av=Ad*Av2; +printf('\noverall voltage gain=%.2f\n',Av) diff --git a/1223/CH14/EX14.10/Ex14_10.sce b/1223/CH14/EX14.10/Ex14_10.sce new file mode 100755 index 000000000..91a971f84 --- /dev/null +++ b/1223/CH14/EX14.10/Ex14_10.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 14.10 +Kn1=105; +Kn2=100; +Iq=200; +dKn=Kn1-Kn2; +printf('\ndifference in conduction parameter=%.2f microA/V^2\n',dKn) +Kn=(Kn1+Kn2)/2; +printf('\naverage of the conduction parameter=%.2f microA/V^2\n',Kn) +Vos=sqrt(Iq/(2*Kn))*dKn/(2*Kn); +printf('\noffset voltage=%f V\n',Vos) diff --git a/1223/CH14/EX14.11/Ex14_11.sce b/1223/CH14/EX14.11/Ex14_11.sce new file mode 100755 index 000000000..54353ea70 --- /dev/null +++ b/1223/CH14/EX14.11/Ex14_11.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 14.11 +Rs=100; +R4=100000; +R3=100000; +V1=15; +V2=-15; +Vy=Rs*V1/(Rs+R4); +Vy=Vy*1000;//mV +printf('\nVoltage Vy =%.2fmV\n',Vy) diff --git a/1223/CH14/EX14.13/Ex14_13.sce b/1223/CH14/EX14.13/Ex14_13.sce new file mode 100755 index 000000000..220b7582f --- /dev/null +++ b/1223/CH14/EX14.13/Ex14_13.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 14.13 +R1=10; +R2=100; +Ib1=1.1*10^-3; +Ib2=1*10^-3; +vo=Ib1*R2; +printf('\noutput voltage =%.2fV\n',vo) +R3=R1*R2/(R1+R2); +printf('\nR3=%.2f KOhm\n',R3) +vo=R2*(Ib1-Ib2); +printf('\noutput voltage=%.2f V\n',vo) diff --git a/1223/CH14/EX14.2/Ex14_2.sce b/1223/CH14/EX14.2/Ex14_2.sce new file mode 100755 index 000000000..dec5a58f0 --- /dev/null +++ b/1223/CH14/EX14.2/Ex14_2.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 14.2 +R2=10000; +Ri=10000; +Aol=10^5; +Rif=1/(1/Ri+(1+Aol)/R2); +printf('\nclosed loop input resistance =%.2fOhm\n',Rif) diff --git a/1223/CH14/EX14.3/Ex14_3.sce b/1223/CH14/EX14.3/Ex14_3.sce new file mode 100755 index 000000000..021e2b1ad --- /dev/null +++ b/1223/CH14/EX14.3/Ex14_3.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 14.3 +Aol=10^5; +Ri=10; +R1=10; +R2=R1; +Rif=(Ri*(1+Aol)+R2*(1+Ri/R1))/(1+R2/R1); +Rif=Rif*0.001;//Mohm +printf('\ninput resistance =%.fMOhm\n',Rif) diff --git a/1223/CH14/EX14.5/Ex14_5.sce b/1223/CH14/EX14.5/Ex14_5.sce new file mode 100755 index 000000000..e511c7aed --- /dev/null +++ b/1223/CH14/EX14.5/Ex14_5.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 14.5 +Ao=2*10^5; +fPD=5; +fT=fPD*Ao; +printf('\nunity gain bandwidth=%.e Hz\n',fT) +f3dB=20*10^3; +Acl=fT/f3dB; +printf('\nclosed loop gain=%.2f\n',Acl) diff --git a/1223/CH14/EX14.6/Ex14_6.sce b/1223/CH14/EX14.6/Ex14_6.sce new file mode 100755 index 000000000..214a11fb9 --- /dev/null +++ b/1223/CH14/EX14.6/Ex14_6.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 14.6 +Iq=19*10^-6; +C1=30*10^-12; +SR=Iq/C1; +SR=SR*10^-6; +printf('\nslew rate=%.2f V/micros\n',SR) diff --git a/1223/CH14/EX14.7/Ex14_7.sce b/1223/CH14/EX14.7/Ex14_7.sce new file mode 100755 index 000000000..89046db36 --- /dev/null +++ b/1223/CH14/EX14.7/Ex14_7.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 14.7 +fT=1000;//KHz +Aclo=10; +SR=1*10^3; +Vpo=10; +f3dB=fT/Aclo; +printf('\nsmall signal closed loop bandwidth=%.2f KHz\n',f3dB) +fmax=SR/(2*%pi*Vpo); +printf('\nfull power bandwidth=%.2f KHz\n',fmax) diff --git a/1223/CH14/EX14.8/Ex14_8.sce b/1223/CH14/EX14.8/Ex14_8.sce new file mode 100755 index 000000000..e20b3d9cc --- /dev/null +++ b/1223/CH14/EX14.8/Ex14_8.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 14.8 +Is1=10^-14; +Is2=1.05*10^-14; +Vt=0.026; +Vos=Vt*log(Is2/Is1); +printf('\nthe offset voltage =%fV\n',Vos) diff --git a/1223/CH15/EX15.10/Ex15_10.sce b/1223/CH15/EX15.10/Ex15_10.sce new file mode 100755 index 000000000..b7b428546 --- /dev/null +++ b/1223/CH15/EX15.10/Ex15_10.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 15.10 +C=15*10^-9; +T=100*10^-6;//(s) time +R=T/(1.1*C); +R=R*0.001;//Kohm +printf('\nResistance R=%.2f KOhm\n',R) diff --git a/1223/CH15/EX15.13/Ex15_13.sce b/1223/CH15/EX15.13/Ex15_13.sce new file mode 100755 index 000000000..207a5f139 --- /dev/null +++ b/1223/CH15/EX15.13/Ex15_13.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 15.13 +Rl=10;//load resistance +Pl=20;//power delivered to the load +Ps=20;//(W) +Vp=sqrt(2*Rl*Pl); +printf('\npeak output voltage=%.2f V\n',Vp) +Ip=Vp/Rl; +printf('\npeak load current =%.2fA\n',Ip) +Vs=%pi*Rl*Ps/Vp; +printf('\nrequired supply voltage=%.2f V\n',Vs) diff --git a/1223/CH15/EX15.14/Ex15_14.sce b/1223/CH15/EX15.14/Ex15_14.sce new file mode 100755 index 000000000..8d31e99fa --- /dev/null +++ b/1223/CH15/EX15.14/Ex15_14.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 15.14 +Vonl=5; +Vofl=4.96; +I1=0.005; +I2=1.5; +dVo=Vonl-Vofl; +dIo=I1-I2; +Rvf=-dVo/dIo; +printf('\noutput resistance=%f Ohm\n',Rvf) +LR=100*(Vonl-Vofl)/Vonl; +printf('\nload regulation =%.2f\n',LR) diff --git a/1223/CH15/EX15.15/Ex15_15.sce b/1223/CH15/EX15.15/Ex15_15.sce new file mode 100755 index 000000000..4a6ea02a8 --- /dev/null +++ b/1223/CH15/EX15.15/Ex15_15.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 15.15 +Aol=1000; +Vref=5; +Vo=10; +Io=0.1*0.001; +Vt=0.026; +Rof=2*Vt*Vo/(Io*Vref*Aol); +printf('\noutput resistance=%.2f mOhm\n',Rof) +//dVo/Vo=V and dIo/Io=I +//V=-I*2*Vt/(Vref*Aol) +//V/I=x +x=-2*Vt/(Vref*Aol); +printf('\npercent change=%.2e\n',x) diff --git a/1223/CH15/EX15.16/Ex15_16.sce b/1223/CH15/EX15.16/Ex15_16.sce new file mode 100755 index 000000000..8a87694aa --- /dev/null +++ b/1223/CH15/EX15.16/Ex15_16.sce @@ -0,0 +1,17 @@ +clear; +clc; +//Example 15.16 +Vz=6.3; +Vbe=0.6; +Veb=0.6; +Vo=8; +R1=3.9; +R2=3.4; +R3=0.576; +Ic3=(Vz-3*Vbe)/(R1+R2+R3); +printf('\nbias current =%.3f mA\n',Ic3) +Vb7=Ic3*R1+2*Vbe; +printf('\ntemperature compensated reference voltage=%.2f V\n',Vb7) +R13=2.23; +R12=R13*Vo/Vb7-R13; +printf('\nR12=%.2f KOhm\n',R12) diff --git a/1223/CH15/EX15.2/Ex15_2.sce b/1223/CH15/EX15.2/Ex15_2.sce new file mode 100755 index 000000000..792c3da8f --- /dev/null +++ b/1223/CH15/EX15.2/Ex15_2.sce @@ -0,0 +1,7 @@ +clear; +clc; +//Example 15.2 +C=20*10^-6; +Req=1000; +fC=1/(C*Req); +printf('\nclock frequency =%.2fKHz\n',fC) diff --git a/1223/CH15/EX15.3/Ex15_3.sce b/1223/CH15/EX15.3/Ex15_3.sce new file mode 100755 index 000000000..43e3c2fe5 --- /dev/null +++ b/1223/CH15/EX15.3/Ex15_3.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 15.3 +fC=10000; +f3dB=1000; +//x=C2/C1 +x=2*%pi*f3dB/fC; +printf('\ncapacitances C2/C1=%.3f \n',x) diff --git a/1223/CH15/EX15.4/Ex15_4.sce b/1223/CH15/EX15.4/Ex15_4.sce new file mode 100755 index 000000000..79e7e4dc8 --- /dev/null +++ b/1223/CH15/EX15.4/Ex15_4.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 15.4 +C=0.1*10^-6; +R=1000; +fo=1/(2*%pi*R*C*sqrt(3)); +printf('\nthe oscillation frequency =%.2fHz\n',fo) +//minimum amplifier gain=8 +R=1;//KOhm +R2=8*R; +printf('\nR2=%.f KOhm\n',R2) diff --git a/1223/CH15/EX15.6/Ex15_6.sce b/1223/CH15/EX15.6/Ex15_6.sce new file mode 100755 index 000000000..831272d8c --- /dev/null +++ b/1223/CH15/EX15.6/Ex15_6.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 15.6 +R1=10000; +R2=90000; +Vh=10; +Vl=-10; +Vth=R1*Vh/(R1+R2); +printf('\nupper crossover voltage=%.f V\n',Vth) +Vtl=R1*Vl/(R1+R2); +printf('\nlower crossover voltage=%.f V\n',Vtl) +x=Vth-Vtl; +printf('\nhysteresis width =%.fV\n',x) diff --git a/1223/CH15/EX15.7/Ex15_7.sce b/1223/CH15/EX15.7/Ex15_7.sce new file mode 100755 index 000000000..56fe1f3e2 --- /dev/null +++ b/1223/CH15/EX15.7/Ex15_7.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 15.7 +Vs=2; +Vh=15; +Vl=-15; +//hysteresis width=x +x=60*0.001;//(V) +//Vth-Vtl=(R1/(R1+R2))*(Vh-Vl) +//R2/R=y +y=(Vh-Vl)/x-1; +printf('\nR2/R1=%.2f \n',y) +Vref=(1+1/y)*Vs; +printf('\nreference voltage=%.4f V\n',Vref) diff --git a/1223/CH16/EX16.10/Ex16_10.sce b/1223/CH16/EX16.10/Ex16_10.sce new file mode 100755 index 000000000..09dda081d --- /dev/null +++ b/1223/CH16/EX16.10/Ex16_10.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 16.10 +Cl=2*10^-6; +Vdd=5; +f=100000; +P=f*Cl*Vdd^2; +printf('\npower dissipation in the CMOS inverter=%.3f microW\n',P) diff --git a/1223/CH16/EX16.11/Ex16_11.sce b/1223/CH16/EX16.11/Ex16_11.sce new file mode 100755 index 000000000..1c5069df5 --- /dev/null +++ b/1223/CH16/EX16.11/Ex16_11.sce @@ -0,0 +1,19 @@ +clear; +clc; +//Example 16.11 +Vtn=1; +Vtp=-1; +Vdd=5; +Vth=1; +Vil=Vtn+3*(Vdd+Vtp-Vth)/8; +printf('\ninput voltage at the transition points Vil=%.3f V\n',Vil) +Vih=Vtn+5*(Vdd+Vtp-Vtn)/8; +printf('\ninput voltage at the transition points Vih=%.3fV\n',Vih) +Vohu=1*(2*Vil+Vdd-Vtn-Vtp)/2; +printf('\noutput voltage =%.3f V\n',Vohu) +Volu=1*(2*Vih-Vdd-Vtn-Vtp)/2; +printf('\noutput voltage =%.2f V\n',Volu) +NML=Vil-Volu; +printf('\nnoise margin =%.3f V\n',NML) +NMH=Vohu-Vih; +printf('\nnoise margin=%.3f V\n',NML) diff --git a/1223/CH16/EX16.15/Ex16_15.sce b/1223/CH16/EX16.15/Ex16_15.sce new file mode 100755 index 000000000..1e00bfea2 --- /dev/null +++ b/1223/CH16/EX16.15/Ex16_15.sce @@ -0,0 +1,33 @@ +clear; +clc; +//Example 16.15 +Vdd=3; +Kn=60; +Vtnd=0.5; +//W/L=x +xd=2; +Vtnl=-1; +xl=0.5; +R=2;//(MOhm) +Vgsl=0; +//solution with Depletion load +iD=Kn*xl*(Vgsl-Vtnl)^2/2; +printf('\nfrain currents in M1 and M3 =%.fmicroA\n',iD) +P=iD*Vdd; +printf('\npower dissipation in the circuit=%.f microW\n',P) +//iD=Kn/2*x*(2*Vgsd-Vtnd)Vdsd-Vdsd^2 +Q=poly(0,'Q'); +p=poly([0.25 -5 1],'Q','c'); +roots(p) +disp("Q=50.5 (mV)") +//solution with Resistor load +//(Vdd-Q)/R=Kn/2*xd*(2*Vgsd-Vtnd)Q-Q^2 +Q=poly(0,'Q'); +p=poly([3 -599 120],'Q','c'); +roots(p) +Q=0.005; +disp("Q=5 (mV)") +iD=(Vdd-Q)/R; +printf('\ndrain current =%.2f microA\n',iD) +P=iD*Vdd; +printf('\npower dissipation in the circuit =%.2f microW\n',P) diff --git a/1223/CH16/EX16.3/Ex16_3.sce b/1223/CH16/EX16.3/Ex16_3.sce new file mode 100755 index 000000000..50b71dcdb --- /dev/null +++ b/1223/CH16/EX16.3/Ex16_3.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 16.3 +Vdd=5; +Vtnd=0.8; +Vtnl=0.8; +Kn=35; +Vo=0.1; +Vi=4.2; +//W/L=Y +yl=0.5; +//Kd/Kl=x +x=(Vdd-Vo-Vtnl)^2/(2*Vo*(Vi-Vtnd)-Vo^2); +printf('\nKd/Kl=%.2f\n',x) +//Kd/Kl=yd/yl +yd=12.6 +yl=0.5 +iD=Kn*yl*(Vdd-Vo-Vtnl)^2/2; +printf('\ndrain current =%.2f microA\n',iD) +P=iD*Vdd; +printf('\npower dissipation=%.2f microW\n',P) diff --git a/1223/CH16/EX16.4/Ex16_4.sce b/1223/CH16/EX16.4/Ex16_4.sce new file mode 100755 index 000000000..56536105b --- /dev/null +++ b/1223/CH16/EX16.4/Ex16_4.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 16.4 +Vdd=5; +Vtnd=0.8; +Vtnl=-2; +Kn=35; +Vo=0.1; +Vi=5; +//W/L=Y +yl=0.5; +//Kd/Kl=x +x=(-Vtnl)^2/(2*Vo*(Vi-Vtnd)-Vo^2); +printf('\nKd/Kl=%.2f\n',x) +//Kd/Kl=yd/yl +yd=2.41 +yl=0.5 +iD=Kn*yl*(-Vtnl)^2/2; +printf('\ndrain current=%.2f microA\n',iD) +P=iD*Vdd; +printf('\npower dissipation =%.2f microW\n',P) diff --git a/1223/CH16/EX16.5/Ex16_5.sce b/1223/CH16/EX16.5/Ex16_5.sce new file mode 100755 index 000000000..d7983b006 --- /dev/null +++ b/1223/CH16/EX16.5/Ex16_5.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 16.5 +Voh=4.2; +Vol=0.1; +//x=Kd/Kl +x=25.1; +Vdd=5; +Vtnl=0.8; +Vohu=4.2; +Vil=0.8; +Vtnd=0.8; +Vih=Vtnd+(Vdd-Vtnl)/x*((1+2*x)/sqrt(1+3*x)-1); +printf('\nVih=%.2f V\n',Vih) +Volu=(Vdd-Vtnl+x*(Vih-Vtnd))/(1+2*x); +printf('\noutput voltage corresponding to Vih=%.3f V\n',Volu) +NMl=Vil-Volu; +printf('\nnoise margin=%0.3f V\n',NMl) +NMh=Vohu-Vih; +printf('\nnoise margin=%.3f V\n',NMh) diff --git a/1223/CH16/EX16.9/Ex16_9.sce b/1223/CH16/EX16.9/Ex16_9.sce new file mode 100755 index 000000000..ae3ae84d1 --- /dev/null +++ b/1223/CH16/EX16.9/Ex16_9.sce @@ -0,0 +1,25 @@ +clear; +clc; +//Example 16.9 +Vdd=5; +Vtn=1; +Vtp=-1; +//Kn=Kp hence Kn/Kp=x=1; +x=1; +Vit=(Vdd+Vtp+sqrt(x)*Vtn)/(1+sqrt(x)); +printf('\ninput voltage=%.2f V\n',Vit) +Vipt=Vit; +Vopt=Vipt-Vtp; +printf('\noutput voltage at the transition point for PMOS =%.2fV\n',Vopt) +Vint=Vit; +Vont=Vint-Vtn; +printf('\noutput voltage at the transition point for NMOS=%.2f V\n',Vont) +Vdd=10; +Vit=(Vdd+Vtp+sqrt(x)*Vtn)/(1+sqrt(x)); +printf('\ninput voltage =%.2fV\n',Vit) +Vipt=Vit; +Vint=Vit; +Vopt=Vipt-Vtp; +printf('\noutput voltage at the transition point for PMOS =%.2fV\n',Vopt) +Vont=Vint-Vtn; +printf('\noutput voltage at the transition point for NMOS =%.2fV\n',Vont) diff --git a/1223/CH17/EX17.1/Ex17_1.sce b/1223/CH17/EX17.1/Ex17_1.sce new file mode 100755 index 000000000..3e70629d4 --- /dev/null +++ b/1223/CH17/EX17.1/Ex17_1.sce @@ -0,0 +1,34 @@ +clear; +clc; +//Example 17.1 +V1=5; +V2=-5; +Rc1=1; +Rc2=Rc1; +Rc=Rc1; +Re=2.150; +v2=0; +//for v1=0 +vE=-0.7; +iE=(vE-V2)/Re; +printf('\nemitter current=%.3f mA\n',iE) +iC=1; +Vcc=5; +vo1=Vcc-iC*Rc; +printf('\nvo1=vo2=%.f V\n',vo1) +//for v2=-1 +vE=-0.7; +iE=2; +iC2=2; +vo1=5; +vo2=Vcc-iC2*Rc; +printf('\nvo2=%.2f V\n',vo2) +v1=1; +Vbe=0.7; +vE=v1-Vbe; +iE=(vE-V2)/Re; +printf('\nemitter current =%.3fmA\n',iE) +iC1=iE; +vo1=Vcc-iC1*Rc; +printf('\nvo1=%.2f V\n',vo1) +vo2=Vcc diff --git a/1223/CH17/EX17.11/Ex17_11.sce b/1223/CH17/EX17.11/Ex17_11.sce new file mode 100755 index 000000000..118bab3cd --- /dev/null +++ b/1223/CH17/EX17.11/Ex17_11.sce @@ -0,0 +1,19 @@ +clear; +clc; +//Example 17.11 +b=25; +iB=1; +iC=2; +ic=(iB+iC)/(1+1/b); +printf('\ninternal collector current=%.3f mA\n',ic) +ib=ic/b; +printf('\ninternal base current =%.3fmA\n',ib) +iD=iB-ib; +printf('\nSchottky diode current=%.3f mA\n',iD) +iC=20; +ic=(iB+iC)/(1+1/b); +printf('\ninternal collector current=%.3f mA\n',ic) +ib=ic/b; +printf('\ninternal base current =%.3fmA\n',ib) +iD=iB-ib; +printf('\nSchottky diode current=%.3f mA\n',iD) diff --git a/1223/CH17/EX17.12/Ex17_12.sce b/1223/CH17/EX17.12/Ex17_12.sce new file mode 100755 index 000000000..639c54aa0 --- /dev/null +++ b/1223/CH17/EX17.12/Ex17_12.sce @@ -0,0 +1,30 @@ +clear; +clc; +//Example 17.12 +Vy=0.3; +Vbe=0.7; +vx=0.4; +R2=8; +Vce=0.4; +Vcc=5; +b=25; +Vce=0.4; +Vbe1=0.7; +Vbe2=0.7; +Vcc=5; +R1=20; +v1=Vce+Vy; +i1=(Vcc-v1)/R1; +printf('\ni1=%.3f mA\n',i1) +Pl=i1*(Vcc-vx); +printf('\npower dissipation=%.3f mW\n',Pl) +v1=Vbe1+Vbe2; +printf('\nv1=%.3f V\n',v1) +vC2=Vbe1+Vce; +printf('\nvoltage vC2 =%.2fV\n',vC2) +i1=(Vcc-v1)/R1; +printf('\ncurrent i1 =%.3fmA\n',i1) +i2=(Vcc-vC2)/R2; +printf('\ncurrent i2 =%.3fmA\n',i2) +P=(i1+i2)*Vcc; +printf('\npower dissipation for high input condition=%.3f mW\n',P) diff --git a/1223/CH17/EX17.2/Ex17_2.sce b/1223/CH17/EX17.2/Ex17_2.sce new file mode 100755 index 000000000..1eff07861 --- /dev/null +++ b/1223/CH17/EX17.2/Ex17_2.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 17.2 +Vx=-0.7; +Vy=Vx; +Vbe=0.7; +V2=-5.2; +Re=1.180; +vE=Vx-Vbe; +printf('\nemitter voltage =%.2fV\n',vE) +iE=(vE-V2)/Re; +printf('\nemitter current=%.2f mA\n',iE) +Icxy=iE; +vo1=-0.7; +Rc1=-vo1/Icxy; +printf('\nRc1=%.2f KOhm\n',Rc1) +Vnor=vo1-Vbe; +printf('\nNOR output logic 0 value=%.2f V\n',Vnor) +Vr=(vo1+Vnor)/2; +vE=Vr-Vbe; +printf('\nvE=%.2f V\n',vE) +iE=(vE-V2)/Re; +printf('\niE=%.2f mA\n',iE) +vo2=-0.7; +iC2=iE; +Rc2=-vo2/iC2; +printf('\nRc2=%.2f KOhm\n',Rc2) +Vor=vo2-Vbe; +printf('\nOR logic 0 value is=%.2f V\n',Vor) diff --git a/1223/CH17/EX17.3/Ex17_3.sce b/1223/CH17/EX17.3/Ex17_3.sce new file mode 100755 index 000000000..ddc4569d6 --- /dev/null +++ b/1223/CH17/EX17.3/Ex17_3.sce @@ -0,0 +1,19 @@ +clear; +clc; +//Example 17.3 +Vr=-1.05; +Vbe=0.7; +Vb5=Vr+Vbe; +printf('\nVb5 =%.2fV\n',Vb5) +R1=0.250; +i1=-Vb5/R1; +printf('\ni1=%.3f mA\n',i1) +Vy=0.7; +V2=-5.2; +//let R1+R2=x +x=(-2*Vy-V2)/i1; +R2=x-R1; +printf('\nR2=%.3f KOhm\n',R2) +iS=i1; +Rs=(Vr-V2)/iS; +printf('\nRs=%.3f KOhm\n',Rs) diff --git a/1223/CH17/EX17.4/Ex17_4.sce b/1223/CH17/EX17.4/Ex17_4.sce new file mode 100755 index 000000000..9d1110fa6 --- /dev/null +++ b/1223/CH17/EX17.4/Ex17_4.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 17.4 +Vx=-0.7; +Vy=-0.7; +iCxy=3.22;//(mA) +iCR=0; +i5=1.40; +i1=1.40; +Vor=-0.7; +R4=1.500; +Vnor=-1.4; +V2=-5.2; +R3=1.500; +i3=(Vor-V2)/R3; +printf('\ncurrent i3=%.2f mA\n',i3) +i4=(Vnor-V2)/R4; +printf('\ncurrent i4 =%.2fmA\',i4) +P=(iCxy+iCR+i5+i1+i3+i4)*(0-V2); +printf('\npower dissipation=%.2f mW\n',P) diff --git a/1223/CH17/EX17.5/Ex17_5.sce b/1223/CH17/EX17.5/Ex17_5.sce new file mode 100755 index 000000000..39249b4bc --- /dev/null +++ b/1223/CH17/EX17.5/Ex17_5.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 17.5 +b=50; +V2=-5.2; +Vbe=0.7; +Rc2=0.240; +Vor=-0.75; +Re=1.180; +iE=(Vor-Vbe-V2)/Re; +printf('\nemitter current=%.2f mA\n',iE) +iB=iE/(1+b); +iB=iB*1000;//micro A +printf('\ninput base current=%.2f microA\n',iB) +R3=1.500; +i3=(Vor-V2)/R3; +printf('\ni3=%.2f mA\n',i3) +iB=iB*0.001;//mA +N=(-(Vor+Vbe)*(1+b)/(Rc2)-i3)/iB; +printf('\nN=%.f\n',N) diff --git a/1223/CH17/EX17.7/Ex17_7.sce b/1223/CH17/EX17.7/Ex17_7.sce new file mode 100755 index 000000000..9bc85a6e9 --- /dev/null +++ b/1223/CH17/EX17.7/Ex17_7.sce @@ -0,0 +1,24 @@ +clear; +clc; +//Example 17.7 +Vcc=1.7; +Re=0.008;//mohm +Rc=0.008;//mohm +Vy=0.4; +Vbe=0.7; +Vor=Vcc//logic 1 +Vor=Vcc-Vy//logic 0 +Vr=1.5; +iE=(Vr-Vbe)/Re; +printf('\nemitter current=%.2f microA\n',iE) +iR=Vy/Rc; +printf('\nmaximum current in Rc =%.2fmicroA\n',iR) +iD=iE-iR; +printf('\ncurrent through the diode=%.2f microA\n',iD) +P=iE*Vcc; +printf('\npower dissipation=%.2f microW\n',P) +Vv=1.7; +iE=(Vv-Vbe)/Re; +printf('\niE =%.2fmicroA\n',iE) +P=iE*Vcc; +printf('\npower dissipation =%.2fmicroW\n',P) diff --git a/1223/CH17/EX17.9/Ex17_9.sce b/1223/CH17/EX17.9/Ex17_9.sce new file mode 100755 index 000000000..0b0efceb3 --- /dev/null +++ b/1223/CH17/EX17.9/Ex17_9.sce @@ -0,0 +1,40 @@ +clear; +clc; +//Example 17.9 +bf=25; +b=bf; +br=0.1; +Vcc=5; +R1=4; +Vbc=0.7; +Vy=0.1; +Vx=0.1; +R2=1.6; +Vbe=0.8; +Rc=4; +Vce=0.1; +vB2=Vx+Vce; +printf('\nvB2=%.2f V\n',vB2) +vB1=Vx+Vbe; +printf('\nbase voltage=%.2f V\n',vB1) +i1=(Vcc-vB1)/R1; +printf('\ncurrent i1=%.2f mA\n',i1) +vB1=Vbe+Vbe+Vbc; +printf('\nvB1=%.2f V\n',vB1) +vC2=Vbe+Vce; +printf('\ncollector voltage=%.2f V\n',vC2) +i1=(Vcc-vB1)/R1; +printf('\ncurrent i1 =%.2fmA\n',i1) +iB2=(1+2*br)*i1; +printf('\niB2=%.2f mA\n',iB2) +i2=(Vcc-vC2)/R2; +printf('\ni2 =%.2fmA\n',i2) +iE2=i2+iB2; +printf('\niE2=%.2f mA\n',iE2) +Rb=1; +i4=Vbe/Rb; +printf('\ncurrent in the pull down resistor=%.2f mA\n',i4) +iBo=iE2-i4; +printf('\nbase drive to the output transistor=%.2f mA\n',iBo) +i1=(Vcc-Vce)/Rc; +printf('\ni1=%.2f mA\n',i1) diff --git a/1223/CH2/EX2.1/Ex2_1.sce b/1223/CH2/EX2.1/Ex2_1.sce new file mode 100755 index 000000000..bd03cad4a --- /dev/null +++ b/1223/CH2/EX2.1/Ex2_1.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 2.1 +v_I=120;//(V)rms primary input +v_o=9;//(V)peak output voltage +V_Y=0.7;//(V)diode cut in voltage +//for center-tapped transformer circuit in fig.2.6(a) +v_S=v_o+V_Y//(V)peak value of secondary voltage +printf('\npeak value of secondary voltage=%.2f V\n',v_S) +v_S_rms=v_S/sqrt(2)//for a sinusoidal signal rms value of v_S +printf('\nrms value of v_S=%.2f V\n',v_S_rms) +//let turns ratio of the primary to secondary winding be x=N1/N2 +x=v_I/v_S_rms; +printf('\nturns ratio=%f \n',x) +//for the bridge circuit in fig.2.7(a) +v_Sb=v_o+2*V_Y;//(V)peak value of secondary voltage +printf('\npeak value of secondary voltage=%.2f V\n',v_Sb) +v_S_rms=v_Sb/sqrt(2);//for a sinusoidal signal rms value of v_S +printf('\nrms value of v_S=%f V\n',v_S_rms) +//let turns ratio of the primary to secondary winding be x=N1/N2 +x=v_I/v_S_rms; +printf('\nturns ratio=%f\n',x) +//for center tapped rectifier +PIV=2*v_S-V_Y; +printf('\npeak inverse voltage of a diode=%f V\n',PIV) +//for the bridge rectifier peak inverse voltage of a diode +PIV=v_Sb-V_Y; +printf('\npeak inverse voltage of a diode=%.2f V\n',PIV) +//advantage of bridge rectifier over center tapped rectifier is it requies only half of the turns diff --git a/1223/CH2/EX2.10/Ex2_10.sce b/1223/CH2/EX2.10/Ex2_10.sce new file mode 100755 index 000000000..404ea6417 --- /dev/null +++ b/1223/CH2/EX2.10/Ex2_10.sce @@ -0,0 +1,9 @@ +clear; +clc; +//Example 2.10 +n=1;//quantum efficiency +A=10^-2;//cm^2 junction area +p=5*10^17;//(cm^-2-s^-1) incident photon flux +e=1.6*10^-16;//charge of an electron +Iph=n*e*p*A; +printf('\nphotocurrent=%0.1f mA\n',Iph) diff --git a/1223/CH2/EX2.11/Ex2_11.sce b/1223/CH2/EX2.11/Ex2_11.sce new file mode 100755 index 000000000..c556e510f --- /dev/null +++ b/1223/CH2/EX2.11/Ex2_11.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 2.11 +I=0.01;//(A) diode current +V_Y=1.7;//(V) forward bias voltage drop +Vt=0.2;//(V) +R=(5-V_Y-Vt)/I; +printf('\nresistance=%0.1f Ohm',R) diff --git a/1223/CH2/EX2.2/Ex2_2.sce b/1223/CH2/EX2.2/Ex2_2.sce new file mode 100755 index 000000000..48c645877 --- /dev/null +++ b/1223/CH2/EX2.2/Ex2_2.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 2.2 +//full wave rectifier circuit with 60Hz input signal +V_M=10;//(V)peak output voltage +R=0.01;//(MOhm)output load resistance +f=60;//Hz +V_r=0.2;//(V)ripple voltage +C=V_M/(2*f*R*V_r);//capacitance +printf('\ncapacitance=%f microF\n',C) diff --git a/1223/CH2/EX2.3/Ex2_3.sce b/1223/CH2/EX2.3/Ex2_3.sce new file mode 100755 index 000000000..342a761b5 --- /dev/null +++ b/1223/CH2/EX2.3/Ex2_3.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 2.3 +V_O=12;//(V)peak output voltage +I_L=0.12;//(A)current delivered to the load +R=V_O/I_L; +printf('\neffective load resistance=%.2f Ohm\n',R) +V_Y=0.7;//(V)diode cut in voltage +v_S=V_O+2*V_Y; +printf('\npeak value of v_S=%.2f V\n',v_S) +v_Srms=v_S/sqrt(2); +printf('\nrms voltage=%.2f V\n',v_Srms) +//let x=N1/N2 +Vin=120;//(V)input line voltage +x=Vin/v_Srms; +printf('\nturns ratio=%.2f \n',x) +VM=12;//(V) +Vr=5/100*VM; +printf('\nripple voltage=%.2f V\n',Vr) +f=60;//(Hz) input frequency +C=VM/(2*R*Vr*f); +printf('\nfilter capacitance=%f F\n',C) +i_Dmax=(VM/R)*(1+2*%pi*sqrt(VM/(2*Vr))); +printf('\npeak diode current=%.2f A\n',i_Dmax) +R=0.1;//Kohm +i_Davg=(1/(2*%pi))*sqrt(2*Vr/VM)*((VM/R)*(1+%pi*sqrt(VM/(2*Vr)))); +printf('\naverage diode current=%f mA\n',i_Davg) +PIV=v_S-V_Y; +printf('\npeak inverse voltage=%.2f V\n',PIV) diff --git a/1223/CH2/EX2.5/Ex2_5.sce b/1223/CH2/EX2.5/Ex2_5.sce new file mode 100755 index 000000000..de67161f5 --- /dev/null +++ b/1223/CH2/EX2.5/Ex2_5.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 2.5 +rZ=4;//(Ohm) Zener resistance +V_Lnom=9;//(V) nominal output voltage +Izmax=0.3;//(A) maximum zener diode current +Izmin=0.03;//(A) minimum zener diode current +V_Lmax=V_Lnom+Izmax*rZ +V_Lmin=V_Lnom+Izmin*rZ +//percent regulation R +R=((V_Lmax-V_Lmin)/V_Lnom)*100; +printf('\npercent regulation=%0.1f \n',R) diff --git a/1223/CH2/EX2.8/Ex2_8.sce b/1223/CH2/EX2.8/Ex2_8.sce new file mode 100755 index 000000000..2b432da18 --- /dev/null +++ b/1223/CH2/EX2.8/Ex2_8.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 2.8 +R1=5;R2=10;//(KOhm) +V_Y=0.7;//(V)diode cut in voltage +V1=5;V2=-5;//(V) +vt=0;//(V) +//asssuming initially diode D1 is off +//iR1=iD2=iR2=V1-V2-V_Y/(R1+R2) +iD2=(V1-V2-V_Y)/(R1+R2); +printf('\ndiode current=%0.2f mA\n',iD2) +iR1=iD2; +vo=V1-iR1*R1; +printf('\noutput voltage=%0.2f V\n',vo) +v=vo-V_Y;//v=v' +printf('\nVoltage=%0.1f V\n',v) +vt=4;//(V)fig.2.33 +//both D1 and D2 are on +vo==vt; +vo=4; +iD2=(V1-vo)/R1; +printf('\ndiode current=%.2f mA\n',iD2) +iR1==iD2; +v=vo-V_Y; +printf('\nV=%.2f V\n',v) +iR2=(v-V2)/R2; +printf('\niR2=%.2f mA\n',iR2) +iD1=iR2-iD2; +printf('\ncurrent through D1=%.2f mA\n',iD1) diff --git a/1223/CH3/EX3.1/Ex3_1.sce b/1223/CH3/EX3.1/Ex3_1.sce new file mode 100755 index 000000000..658b6fdee --- /dev/null +++ b/1223/CH3/EX3.1/Ex3_1.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 3.1 +//let beta be "b" +b=150;//common emitter current gain +iB=15*10^-3;//(mA) base current +//assume transistor biased in forward active mode +iC=b*iB; +printf('\ncollector current=%.2f mA\n',iC) +iE=(1+b)*iB; +printf('\nemitter current=%.2f mA\n',iE) +a=b/(1+b); +printf('\ncommon base current gain=%.3f\n',a) diff --git a/1223/CH3/EX3.10/Ex3_10.sce b/1223/CH3/EX3.10/Ex3_10.sce new file mode 100755 index 000000000..60fb57b4d --- /dev/null +++ b/1223/CH3/EX3.10/Ex3_10.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 3.10 +Rb=0.24; +Vcc=12; +Vbe=0.7; +Vce=0.1; +b=75; +Rc=5;//Ohm +//for Vt=0 ,transistor is cut off,Ib=Ic=0,Vo=Vcc=12 V,power dissipation is zero +Vt=12;//(V) +Ib=(Vt-Vbe)/Rb; +printf('\nbase current=%0.3f mA\n',Ib) +Ic=(Vcc-Vce)/Rc; +printf('\ncollector current=%0.2f A\n',Ic) +Ib=0.0471;//A +x=Ic/Ib +//since Ic/IbVdssat transisyor is biased in saturation region diff --git a/1223/CH5/EX5.11/Ex5_11.sce b/1223/CH5/EX5.11/Ex5_11.sce new file mode 100755 index 000000000..48dee6867 --- /dev/null +++ b/1223/CH5/EX5.11/Ex5_11.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 5.11 +Vtnd=1; +Vtnl=-2; +Knd=50; +Knl=10; +Vt=5; +Vo=poly(0,'Vo') +p=poly([4 -40 5],'Vo','c') +printf('\npossible solutions ::%.2f V\n',roots(p)) +//since output voltage cannot be greater than supply voltage 5V +Vo=0.1;//(V) +I_D=Knl*(-Vtnl)^2; +printf('\ndrain current=%.3f microA\n',I_D) diff --git a/1223/CH5/EX5.13/Ex5_13.sce b/1223/CH5/EX5.13/Ex5_13.sce new file mode 100755 index 000000000..bc8f72087 --- /dev/null +++ b/1223/CH5/EX5.13/Ex5_13.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 5.13 +Kn1=0.2; +Kn2=0.1; +Kn3=0.1; +Kn4=0.1; +Vtn1=1; +Vtn2=1; +Vtn3=1; +Vtn4=1; +V2=-5; +Vgs3=(sqrt(Kn4/Kn3)*(-V2-Vtn4)+Vtn3)/(1+sqrt(Kn4/Kn3)); +printf('\nVgs3=%.2f V\n',Vgs3) +Iq=Kn3*(Vgs3-Vtn3)^2; +printf('\nbias current=%.3f mA\n',Iq) +Vgs1=sqrt(Iq/Kn1)+Vtn1; +printf('\ngate to source voltage on M1=%.2f V\n',Vgs1) +Vds2=-V2-Vgs1; +printf('\ndrain to source voltage on M2=%.2f V\n',Vds2) +Vgs2=Vgs3; +Vdssat=Vgs2-Vtn2 +//since Vds2>Vdssat M2 is biased in saturation region diff --git a/1223/CH5/EX5.14/Ex5_14.sce b/1223/CH5/EX5.14/Ex5_14.sce new file mode 100755 index 000000000..5543f51f9 --- /dev/null +++ b/1223/CH5/EX5.14/Ex5_14.sce @@ -0,0 +1,14 @@ +clear; +clc; +//Example 5.14 +I_D=0.5; +Vds=6; +Kn=80*10^-6; +Vgs=5; +Vtn=1; +//x=W/L +x=I_D*2/(Kn*(Vgs-Vtn)^2); +disp(x,"W/L ") +//maximum power dissipation in transistor +Pmax=Vds*I_D; +printf('\nmaximum power dissipation in transistor=%.3f W\n',Pmax) diff --git a/1223/CH5/EX5.16/Ex5_16.sce b/1223/CH5/EX5.16/Ex5_16.sce new file mode 100755 index 000000000..232867b50 --- /dev/null +++ b/1223/CH5/EX5.16/Ex5_16.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 5.16 +Idss=2;//(mA) saturation current +Vp=-3.5;//(V) pinch off voltage +Vgs=[0 Vp/4 Vp/2] +I_D=Idss*(1-Vgs/Vp)^2; +disp(I_D,"I_D (A)") +Vds=Vgs-Vp; +disp(Vds,"Vdssat (V)") diff --git a/1223/CH5/EX5.17/Ex5_17.sce b/1223/CH5/EX5.17/Ex5_17.sce new file mode 100755 index 000000000..0743c734d --- /dev/null +++ b/1223/CH5/EX5.17/Ex5_17.sce @@ -0,0 +1,17 @@ +clear; +clc; +//Example 5.17 +Idss=5;//mA +Vp=-4; +Vdd=10; +I_D=2; +Vds=6; +//I_D=Idss*(1-Vgs/Vp)^2 +Vgs=(1-sqrt(I_D/Idss))*Vp; +printf('\nVgs=%.2f V\n',Vgs) +Rs=-Vgs/I_D; +printf('\nRs=%.3f KOhm\n',Rs) +Rd=(Vdd-Vds-I_D*Rs)/I_D; +printf('\nRd=%.2f KOhm\n',Rd) +Vgs-Vp +//since Vds>Vgs-Vp JFET is biased in saturation diff --git a/1223/CH5/EX5.19/Ex5_19.sce b/1223/CH5/EX5.19/Ex5_19.sce new file mode 100755 index 000000000..29d28da58 --- /dev/null +++ b/1223/CH5/EX5.19/Ex5_19.sce @@ -0,0 +1,18 @@ +clear; +clc; +//Example 5.19 +Idss=2.5; +Vp=2.5; +I_D=0.8; +//I_D=Iq=0.8*10^-3=(Vd-(-9))/Rd +Vd=0.8*4-9; +printf('\nVd =%.2fV\n',Vd) +//I_D=Idss*(1-Vgs/Vp)^2; +Vgs=(1-sqrt(I_D/Idss))*Vp; +printf('\nVgs =%.2fV\n',Vgs) +Vs=1-Vgs; +printf('\nVs=%.2f V\n',Vs) +Vsd=Vs-Vd; +printf('\nVsd=%.2f V\n',Vsd) +Vp-Vgs +//since Vsd>Vp-Vgs JFET is biased in saturation diff --git a/1223/CH5/EX5.2/Ex5_2.sce b/1223/CH5/EX5.2/Ex5_2.sce new file mode 100755 index 000000000..7f5b47810 --- /dev/null +++ b/1223/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 5.2 +Kp=0.2;//(mA/V^2) +Vtp=0.5; +iD=0.5; +Vsg=sqrt(iD/Kp)-Vtp; +printf('\nVgs=%.2f V\n',Vsg) +//to bias in p channel MOSFET +Vsd=Vsg+Vtp; +printf('\nVsd=%.2f V\n',Vsd) diff --git a/1223/CH5/EX5.20/Ex5_20.sce b/1223/CH5/EX5.20/Ex5_20.sce new file mode 100755 index 000000000..84553f209 --- /dev/null +++ b/1223/CH5/EX5.20/Ex5_20.sce @@ -0,0 +1,28 @@ +clear; +clc; +//Example 5.20 +Vtn=0.24; +Kn=1.1; +//x=R1+R2=50000 +x=50; +Vgs=0.5; +Vds=2.5; +Vdd=4; +Rd=6.7; +I_D=Kn*(Vgs-Vtn)^2; +printf('\ndrain current=%.3f mA\n',I_D) +Vd=Vdd-I_D*Rd; +printf('\nvoltage at drain=%0.2f V\n',Vd) +Vs=Vd-Vds; +printf('\nvoltage at source =%0.2fV\n',Vs) +Rs=Vs/I_D; +printf('\nsource resistance =%.2fKOhm\n',Rs) +Vg=Vgs+Vs; +printf('\nvoltage at the gate=%.2f V\n',Vg) +//Vg=R2*Vdd/(R2+R1) +R2=Vg*x/Vdd; +printf('\nR2=%0.3f KOhm\n',R2) +R1=x-R2; +printf('\nR1=%0.3f KOhm\n',R1) +Vgs-Vtn +//since Vds>Vgs-Vtn transistor is biased in saturation diff --git a/1223/CH5/EX5.3/Ex5_3.sce b/1223/CH5/EX5.3/Ex5_3.sce new file mode 100755 index 000000000..b32dc20cc --- /dev/null +++ b/1223/CH5/EX5.3/Ex5_3.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 5.3 +R1=30; +R2=20; +RD=20; +Vdd=5; +Vtn=1; +Kn=0.1; +Vgs=R2*Vdd/(R1+R2); +printf('\nVgs=%0.2f V\n',Vgs) +I_D=Kn*(Vgs-Vtn)^2; +printf('\nthe drain current=%0.1f mA\n',I_D) +Vds=Vdd-I_D*RD; +printf('\ndrain to source voltage=%0.1f V\n',Vds) diff --git a/1223/CH5/EX5.4/Ex5_4.sce b/1223/CH5/EX5.4/Ex5_4.sce new file mode 100755 index 000000000..c317e239d --- /dev/null +++ b/1223/CH5/EX5.4/Ex5_4.sce @@ -0,0 +1,18 @@ +clear; +clc; +//Example 5.4 +R1=50; +R2=50; +RD=7.5; +Vdd=5; +Vtp=-0.8; +Vg=2.5; +Kp=0.2; +Vo=R2*Vdd/(R1+R2); +printf('\nVo=%.2f V\n',Vo) +Vsg=Vdd-Vg; +printf('\nsource to gate voltage=%.2f V\n',Vsg) +I_D=Kp*(Vsg+Vtp)^2; +printf('\nthe drain current=%.3f mA\n',I_D) +Vsd=Vdd-I_D*RD; +printf('\nsource to drain voltage=%.3f V\n',Vsd) diff --git a/1223/CH5/EX5.6/Ex5_6.sce b/1223/CH5/EX5.6/Ex5_6.sce new file mode 100755 index 000000000..c41205e64 --- /dev/null +++ b/1223/CH5/EX5.6/Ex5_6.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 5.6 +Vtn=2; +Kn=80*10^-3; +//x=W/L +x=4; +I_D=0.5; +//I_D=Kn*x*((Vgs-Vtn)^2)/2; +Vgs=sqrt(I_D*2/(Kn*x))+2; +printf('\nVgs=%.2f V\n',Vgs) +//y=R1+R2 +Rs=2; +y=10/0.05; +printf('\nR1+R2=%.2f Kohm\n',y) +//Vgs=Vg-Vs=(R2/(R1+R2)*10-5)-I_D*Rs+5 +R2=(y/10)*(Vgs+I_D*Rs); +printf('\nR2=%.2f KOhm\n',R2) +R1=y-R2; +printf('\nR1=%.2f KOhm\n',R1) diff --git a/1223/CH5/EX5.7/Ex5_7.sce b/1223/CH5/EX5.7/Ex5_7.sce new file mode 100755 index 000000000..69b795279 --- /dev/null +++ b/1223/CH5/EX5.7/Ex5_7.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 5.7 +Vtn=0.8; +Kn=80; +//x=W/L +x=3; +I_D=250; +Vd=2.5; +//I_D=Kn/2*x*(Vgs-Vtn)^2 +Vgs=sqrt(I_D*2/(Kn*x))+Vtn; +printf('\nVgs=%.3f V\n',Vgs) +Vs=-Vgs +//I_D=(5-Vd)/Rd +Rd=(5-Vd)/I_D; +printf('\nRd=%.2f KOhm\n',Rd) +Vds=Vd-Vs; +printf('\nVds=%.2f V\n',Vds) +Vdssat=Vgs-Vtn +//since Vds>Vdssat transistor is biased in saturation region diff --git a/1223/CH5/EX5.8/Ex5_8.sce b/1223/CH5/EX5.8/Ex5_8.sce new file mode 100755 index 000000000..33738a22e --- /dev/null +++ b/1223/CH5/EX5.8/Ex5_8.sce @@ -0,0 +1,15 @@ +clear; +clc; +//Example 5.8 +Vtn=0.8; +Kn=0.05; +//I_D=Kn*(Vgs-Vtn)^2 +//Vds=Vgs=5-I_D*Rs +//combining these two equations we obtain 0.5(Vgs)^2+0.2Vgs-4.68 +Vgs=poly(0,'Vgs') +p=poly([-4.68 0.2 0.5],'Vgs','c') +printf('\npossible solutions ::%.3f V\n',roots(p)) +//assuming transistor is conducting ,Vgs must be greater than threshold voltage +Vgs=2.87; +I_D=Kn*(Vgs-Vtn)^2; +printf('\ndrain current=%.3f mA\n',I_D) diff --git a/1223/CH6/EX6.1/Ex6_1.sce b/1223/CH6/EX6.1/Ex6_1.sce new file mode 100755 index 000000000..965444c95 --- /dev/null +++ b/1223/CH6/EX6.1/Ex6_1.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 6.1 +Vtn=1; +//let x= u_n*Cox*1/2 +x=20*10^-3; +//let y=W/L +y=40; +I_D=1; +Kn=x*y; +printf('\nconduction parameter=%.3f mA/V^2\n',Kn) +g_m=2*sqrt(Kn*I_D); +printf('\ntransconductance=%.3f mA/V\n',g_m) diff --git a/1223/CH6/EX6.11/Ex6_11.sce b/1223/CH6/EX6.11/Ex6_11.sce new file mode 100755 index 000000000..f1b57e17f --- /dev/null +++ b/1223/CH6/EX6.11/Ex6_11.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 6.11 +Vtnd=1; +Vtnl=1; +Kn=30; +//let W/L=x +xl=1; +Vdd=5; +Av=10; +//Av=sqrt(xd/xl) +xd=(Av)^2*xl; +printf('\nwidth to length ratio of driver transistor=%0.2f\n',xd) +Knd=xd*Kn*0.001/2; +Knl=xl*Kn*0.001/2; +printf('\nconduction parameter Knd=%.2f mA/V^2\n',Knd) +printf('\nconduction parameter Knl=%.3f mA/V^2\n',Knl) +//Vgsd-Vtnd=(Vdd-Vtnl)-sqrt(Knd/Knl)*(Vgsd-Vtnd) +y=sqrt(Knd/Knl); +Vgsd=(y+5)/(1+y); +printf('\nVgsd=%.2f V\n',Vgsd) +Vdsd=Vgsd-1; +printf('\nVdsd=%.2f V\n',Vdsd) diff --git a/1223/CH6/EX6.12/Ex6_12.sce b/1223/CH6/EX6.12/Ex6_12.sce new file mode 100755 index 000000000..4faf90f5a --- /dev/null +++ b/1223/CH6/EX6.12/Ex6_12.sce @@ -0,0 +1,17 @@ +clear; +clc; +//Example 6.12 +Vtnd=0.8; +Vtnl=-1.5; +Knd=1; +Knl=0.2; +//lambda=y +yd=0.01; +yl=0.01; +Idq=0.2; +gmd=2*sqrt(Knd*Idq); +printf('\ntransconductance of the driver=%.3f mA/V\n',gmd) +roD=1/(yd*Idq); +printf('\noutput resistances=%.2f Kohm\n',roD) +Av=-gmd*roD/2; +printf('\nsmall signal voltage gain=%.2f \n',Av) diff --git a/1223/CH6/EX6.13/Ex6_13.sce b/1223/CH6/EX6.13/Ex6_13.sce new file mode 100755 index 000000000..0603afe2e --- /dev/null +++ b/1223/CH6/EX6.13/Ex6_13.sce @@ -0,0 +1,20 @@ +clear; +clc; +//Example 6.13 +Vtn=0.8; +Vtp=-0.8; +Kn=80*10^-3; +Kp=40*10^-3; +//x=W/L +xn=15; +xp=10; +//lambda=y +yn=0.01; +yp=0.01; +Ibias=0.2; +gm=2*sqrt(Kn*xn*Ibias/2); +printf('\ntransconductance of the NMOS driver=%.3f mA/V^2\n',gm) +ron=1/(yn*Ibias); +printf('\noutput resistances=%.2f Kohm\n',ron) +Av=-gm*ron/2; +printf('\nsmall signal voltage gain=%.2f \n',Av) diff --git a/1223/CH6/EX6.14/Ex6_14.sce b/1223/CH6/EX6.14/Ex6_14.sce new file mode 100755 index 000000000..50167e6cf --- /dev/null +++ b/1223/CH6/EX6.14/Ex6_14.sce @@ -0,0 +1,34 @@ +clear; +clc; +//Example 6.14 +Kn1=500*10^-3; +Kn2=200*10^-3; +Vtn1=1.2; +Vtn2=Vtn1; +Idq1=0.2; +Idq2=0.5; +Vdsq1=6; +Vdsq2=6; +Ri=100; +Rsi=4; +Rs2=(10-Vdsq2)/Idq2; +printf('\nRs2=%.2f KOhm\n',Rs2) +Vgs2=sqrt(Idq2/Kn2)+Vtn2; +printf('\ngate to source voltage for M2=%.2f V\n',Vgs2) +Vs2=-1; +Vg2=Vs2+Vgs2; +printf('\ngate voltage of M2=%.2f V\n',Vg2) +Vg1=Vg2; +Rd1=(5-Vg1)/Idq1; +printf('\nresistor Rd1=%.2f KOhm\n',Rd1) +Vs1=Vg1-Vdsq1; +printf('\nsource voltage of M1=%.2f KOhm\n',Vs1) +Rs1=(Vs1+5)/Idq1; +printf('\nresistor Rs1=%.2f KOhm\n',Rs1) +Vgs1=sqrt(Idq1/Kn1)+Vtn1; +printf('\ngate to source voltage for M1=%.2f V\n',Vgs1) +R1=Ri*10/(Vgs1+Idq1*Rs1); +printf('\nR1=%.2f KOhm\n',R1) +//Ri=R1*R2/(R1+R2) +R2=Ri*R1/(R1-Ri); +printf('\nR2=%.2f KOhm\n',R2) diff --git a/1223/CH6/EX6.15/Ex6_15.sce b/1223/CH6/EX6.15/Ex6_15.sce new file mode 100755 index 000000000..a5a46ffe1 --- /dev/null +++ b/1223/CH6/EX6.15/Ex6_15.sce @@ -0,0 +1,33 @@ +clear; +clc; +//Example 6.15 +Vtn1=1.2; +Vtn2=1.2; +Kn1=0.8; +Kn2=0.8; +//x=R1+R2+R3=300 +x=300; +Rs=10; +Idq=0.4; +Vdsq1=2.5; +Vdsq2=2.5; +Vs1=Idq*Rs-5; +printf('\ndc voltage at source of M1=%.2f V\n',Vs1) +Vgs=sqrt(Idq/Kn1)+Vtn1; +printf('\ngate to source voltage=%.2f V\n',Vgs) +R3=(Vgs+Vs1)*x/5; +printf('\nR3=%.2f KOhm\n',R3) +Vs2=Vdsq2+Vs1; +printf('\nvoltage at source of M2=%.2f V\n',Vs2) +//y=R2+R3 +y=(Vgs+Vs2)*x/5; +printf('\nR2+R3=%.2f KOhm\n',y) +R2=150; +R1=x-y; +printf('\nR1=%.2f KOhm\n',R1) +R3=y-R2; +printf('\nR3=%.2f KOhm\n',R3) +Vd2=Vdsq2+Vs2; +printf('\nvoltage at drain of M2 =%.2fV\n',Vd2) +Rd=(5-Vd2)/Idq; +printf('\ndrain resistance=%.2f KOhm\n',Rd) diff --git a/1223/CH6/EX6.17/Ex6_17.sce b/1223/CH6/EX6.17/Ex6_17.sce new file mode 100755 index 000000000..da72d8f62 --- /dev/null +++ b/1223/CH6/EX6.17/Ex6_17.sce @@ -0,0 +1,11 @@ +clear; +clc; +//Example 6.17 +Kn=0.8; +Vtn=1.2; +Vgs=1.91; +Rd=2.5; +gm=2*Kn*(Vgs-Vtn); +printf('\ntransconductance=%.2f mA/V\n',gm) +Av=-gm*Rd; +printf('\nsmall signal voltage gain=%.2f \n',Av) diff --git a/1223/CH6/EX6.18/Ex6_18.sce b/1223/CH6/EX6.18/Ex6_18.sce new file mode 100755 index 000000000..1089cb1b4 --- /dev/null +++ b/1223/CH6/EX6.18/Ex6_18.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 6.18 +//Determine the small signal voltage gain of a circuit in fig.6.55 +Idss=12; +Vp=-4; +//lambda=y +y=0.008; +Vgsq=poly(0,'Vgsq'); +p=poly([26.4 17.2 2.025],'Vgsq','c') +printf('\nroots=%fV\n',roots(p)) +Vgsq=-2.01 +Idq=Idss*(1-Vgsq/Vp)^2; +printf('\nquiescent drain current=%f mA\n',Idq) +gm=(-2*Idss/Vp)*(1-Vgsq/Vp); +printf('\ntransconductance=%.2f mA/V\n',gm) +ro=(1/(y*Idq)); +printf('\noutput resistance=%.2f KOhm\n',ro) +Rd=2.7; +Rl=4; +x=Rd*Rl/(Rd+Rl); +Av=-gm*ro*x/(ro+x); +printf('\nsmall signal voltage gain=%.2f \n',Av) diff --git a/1223/CH6/EX6.19/Ex6_19.sce b/1223/CH6/EX6.19/Ex6_19.sce new file mode 100755 index 000000000..b8c55a219 --- /dev/null +++ b/1223/CH6/EX6.19/Ex6_19.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 6.19 +Idss=12; +Vp=-4; +Rl=10; +//lambda=y +y=0.01; +Av=0.9; +//gm=(-2*Idss/Vp)*(1-Vgs/Vp) +gm=2; +Vgs=(1+gm*Vp/(2*Idss))*Vp; +printf('\ngate to source voltage=%.3f V\n',Vgs) +Idq=Idss*(1-Vgs/Vp)^2; +printf('\nquiescent drain current=%.3f mA\n',Idq) +Rs=(-Vgs+10)/Idq; +printf('\nRs=%.2f KOhm\n',Rs) +ro=(1/(y*Idq)); +printf('\noutput resistance=%.3f KOhm\n',ro) +x=Rl*ro/(Rl+ro); +t=x*Rs/(x+Rs); +Av=gm*t/(1+gm*t); +printf('\nsmall signal voltage gain=%.3f \n',Av) diff --git a/1223/CH6/EX6.2/Ex6_2.sce b/1223/CH6/EX6.2/Ex6_2.sce new file mode 100755 index 000000000..d60671e6a --- /dev/null +++ b/1223/CH6/EX6.2/Ex6_2.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 6.2 +Vgsq=2.12; +Vdd=5; +Rd=2.5; +Vtn=1; +Kn=0.8; +//let lambda=y +y=0.02;//V^-1 +Idq=Kn*(Vgsq-Vtn)^2; +printf('\ndrain current=%.3f mA\n',Idq) +Vdsq=Vdd-Idq*Rd; +printf('\ndrain to source voltage=%.3f V\n',Vdsq) +Vgs=1.82; +Vgs-Vtn +//since Vdsq>Vgs-Vtn transistor is biased in saturation +g_m=2*Kn*(Vgsq-Vtn); +printf('\ntransconductance=%.3f mA/V\n',g_m) +ro=(y*Idq)^-1; +printf('\noutput resistance=%.2f KOhm\n',ro) +Av=-g_m*ro*Rd/(ro+Rd); +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH6/EX6.3/Ex6_3.sce b/1223/CH6/EX6.3/Ex6_3.sce new file mode 100755 index 000000000..acf742640 --- /dev/null +++ b/1223/CH6/EX6.3/Ex6_3.sce @@ -0,0 +1,29 @@ +clear; +clc; +//Example 6.3 +Vdd=10; +R1=70.9;//(Kohm) +R2=29.1;//(Kohm) +Rd=5;//(Kohm) +Vtn=1.5; +Kn=0.5;//(mA/V^2) +//lambda=y +y=0.01;//V^-1 +Rsi=4;//(Kohm) +Vgsq=Vdd*R2/(R1+R2); +printf('\ngate to source voltage=%.2f V\n',Vgsq) +Idq=Kn*(Vgsq-Vtn)^2; +printf('\ndrain current=%.3f mA\n',Idq) +Vdsq=Vdd-Idq*Rd; +printf('\ndrain to source voltage=%.2f V\n',Vdsq) +g_m=2*Kn*(Vgsq-Vtn); +printf('\ntransconductance=%.3f mA/V\n',g_m) +ro=(y*Idq)^-1; +printf('\noutput resistance=%.2f KOhm\n',ro) +Ri=R1*R2/(R1+R2); +printf('\namplifier input resistance=%.2f Kohm\n',Ri) +Av=-g_m*(ro*Rd/(ro+Rd))*Ri/(Ri+Rsi); +printf('\nsmall signal voltage gain=%.2f\n',Av) +printf('\namplifier input resistance=%.2f Kohm\n',Ri) +Ro=Rd*ro/(Rd+ro); +printf('\namplifier output resistance=%.2f Kohm\n',Ro) diff --git a/1223/CH6/EX6.4/Ex6_4.sce b/1223/CH6/EX6.4/Ex6_4.sce new file mode 100755 index 000000000..539634abc --- /dev/null +++ b/1223/CH6/EX6.4/Ex6_4.sce @@ -0,0 +1,31 @@ +clear; +clc; +//Example 6.4 +Vtn=1; +Kn=1;//(mA/V^2) +//lambda=y +y=0.015;//V^-1 +Ri=100;//(Kohm) +Idq=2;//(mA) +Idt=4;//(mA) +//Idt=4=Kn*(Vgst-Vtn)^2 +Vgst=sqrt(Idt/Kn)+Vtn; +printf('\nVgst=%.2f V\n',Vgst) +Vdst=Vgst-Vtn; +printf('\nVdst=%.2f V\n',Vdst) +Vdd=12; +Vdsq=7; +Rd=(Vdd-Vdsq)/Idq; +printf('\nRd =%.2fKOhm\n',Rd) +Vgsq=sqrt(Idq/Kn)+Vtn; +printf('\nVgsq=%.2f V\n',Vgsq) +R1=Ri*Vdd/Vgsq; +printf('\nR1=%.2f Kohm\n',R1) +R2=Ri*R1/(R1-Ri); +printf('\nR2=%.2f Kohm\n',R2) +g_m=2*Kn*(Vgsq-Vtn); +printf('\ntransconductance=%.3f mA/V\n',g_m) +ro=(y*Idq)^-1; +printf('\noutput resistance=%.2f KOhm\n',ro) +Av=-g_m*(ro*Rd/(ro+Rd)); +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH6/EX6.6/Ex6_6.sce b/1223/CH6/EX6.6/Ex6_6.sce new file mode 100755 index 000000000..fe3a60be0 --- /dev/null +++ b/1223/CH6/EX6.6/Ex6_6.sce @@ -0,0 +1,17 @@ +clear; +clc; +//Example 6.6 +Vtn=0.8; +Kn=1;//(mA/V^2) +Idq=0.5; +Vdd=5; +Rd=7;//(Kohm) +Vgsq=sqrt(Idq/Kn)+Vtn; +printf('\nVgsq=%.2f V\n',Vgsq) +Vs=-Vgsq +Vdsq=Vdd-Idq*Rd-Vs; +printf('\nVdsq=%.2f V\n',Vdsq) +g_m=2*Kn*(Vgsq-Vtn); +printf('\ntransconductance=%.3f mA/V\n',g_m) +Av=-g_m*Rd; +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH6/EX6.7/Ex6_7.sce b/1223/CH6/EX6.7/Ex6_7.sce new file mode 100755 index 000000000..1f0e146c8 --- /dev/null +++ b/1223/CH6/EX6.7/Ex6_7.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 6.7 +Vdd=12; +R1=162; +R2=463; +Rs=0.75; +Kn=4; +Vtn=1.5; +//lambda=y +y=0.01; +Rsi=4; +Idq=7.97; +Vgsq=2.91; +g_m=2*Kn*(Vgsq-Vtn); +printf('\ntransconductance=%.2f mA/V\n',g_m) +ro=(y*Idq)^-1; +printf('\noutput resistance=%.2f KOhm\n',ro) +Ri=R1*R2/(R1+R2); +printf('\namplifier input resistance=%.3f Kohm\n',Ri) +x=Rs*ro/(Rs+ro); +Av=g_m*x*(Ri/(Ri+Rsi))/(1+g_m*x); +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH6/EX6.9/Ex6_9.sce b/1223/CH6/EX6.9/Ex6_9.sce new file mode 100755 index 000000000..ddaeb510a --- /dev/null +++ b/1223/CH6/EX6.9/Ex6_9.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 6.9 +Rs=750;//Ohm +ro=12500; +g_m=11.3*10^-3; +x=1/g_m; +y=x*Rs/(x+Rs); +Ro=y*ro/(y+ro); +printf('\noutput resistance=%.3f ohm\n',Ro) diff --git a/1223/CH7/EX7.1/Ex7_1.sce b/1223/CH7/EX7.1/Ex7_1.sce new file mode 100755 index 000000000..f615ee2fe --- /dev/null +++ b/1223/CH7/EX7.1/Ex7_1.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 7.1 +Rs=1000; +Rp=10000; +Cs=1*10^-6; +Cp=3*10^-12; +Ts=(Rs+Rp)*Cs; +printf('\ntime constant=%.3f s\n',Ts) +f=1/(2*%pi*Ts); +printf('\ncorner frequency=%.2f Hz\n',f) +x=20*log10(Rp/(Rp+Rs)); +printf('\nmaximum magnitude =%.3fdB\n',x) +Rp=10;//KOhm +Rs=1;//Kohm +Cp=3;//pF +Tp=Cp*Rs*Rp/(Rs+Rp); +printf('\ntime constant=%.3f ns\n',Tp) +Tp=2.73*10^-3;//micro sec +f=1/(2*%pi*Tp); +printf('\ncorner frequency =%.2fMHz\n',f) diff --git a/1223/CH7/EX7.10/Ex7_10.sce b/1223/CH7/EX7.10/Ex7_10.sce new file mode 100755 index 000000000..7332b6e35 --- /dev/null +++ b/1223/CH7/EX7.10/Ex7_10.sce @@ -0,0 +1,16 @@ +clear; +clc; +//Example 7.10 +fT=500; +Ic=1; +b=100; +Vt=0.026; +C2=0.3*10^-12; +fB=fT/b; +printf('\nbandwidth=%.3f MHz\n',fB) +gm=Ic/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm) +fT=500000000; +gm=38.5*0.001; +C1=gm/(fT*2*%pi)-C2; +printf('\ncapacitance =%3.2eF\n',C1) diff --git a/1223/CH7/EX7.12/Ex7_12.sce b/1223/CH7/EX7.12/Ex7_12.sce new file mode 100755 index 000000000..62c74bced --- /dev/null +++ b/1223/CH7/EX7.12/Ex7_12.sce @@ -0,0 +1,12 @@ +clear; +clc; +//Example 7.12 +Kn=0.25; +Vtn=1; +Cgd=0.04*10^-3; +Cgs=0.2*10^-3; +Vgs=3; +gm=2*Kn*(Vgs-Vtn); +printf('\ntransconductance =%.3fmA/V\n',gm) +fT=gm/(2*%pi*(Cgd+Cgs)); +printf('\nunity gain bandwidth=%.f MHz\n',fT) diff --git a/1223/CH7/EX7.13/Ex7_13.sce b/1223/CH7/EX7.13/Ex7_13.sce new file mode 100755 index 000000000..f1d21ea1a --- /dev/null +++ b/1223/CH7/EX7.13/Ex7_13.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 7.13 +gm=1; +Cgd=0.04; +Rl=10; +Cgs=0.2; +Cm=Cgd*(1+gm*Rl); +printf('\nMiller capacitance=%.3f pF\n',Cm) +Cm=0.44*0.001;//nF +Cgs=0.2*0.001;//nF +fT=gm/(2*%pi*(Cgs+Cm)); +printf('\ncutoff frequency=%.3f MHz\n',fT) diff --git a/1223/CH7/EX7.14/Ex7_14.sce b/1223/CH7/EX7.14/Ex7_14.sce new file mode 100755 index 000000000..6874be2d9 --- /dev/null +++ b/1223/CH7/EX7.14/Ex7_14.sce @@ -0,0 +1,32 @@ +clear; +clc; +//Example 7.14 +V1=5; +V=-5; +Rs=0.1; +Rb=40; +R2=5.72; +Re=0.5; +Rc=5; +Rl=10; +b=150; +Vbe=0.7; +C1=35*10^-3; +C2=4; +Vt=0.026; +Icq=1.02; +r=b*Vt/Icq; +printf('\nsmall signal parameter=%.2f KOhm\n',r) +gm=Icq/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm) +Cm=C2*(1+gm*Rc*Rl/(Rc+Rl)); +printf('\nMiller capacitance=%.3f pF\n',Cm) +Cm=527*10^-3; +x=Rb*Rs/(Rb+Rs); +y=r*x/(r+x); +fH=1/(2*%pi*y*(C1+Cm)); +printf('\nupper corner frequency =%.2fMHz\n',fH) +t=Rb*r/(Rb+r); +p=Rc*Rl/(Rc+Rl); +Av=gm*p*t/(t+Rs); +printf('\nmidband gain=%.2f\n',Av) diff --git a/1223/CH7/EX7.15/Ex7_15.sce b/1223/CH7/EX7.15/Ex7_15.sce new file mode 100755 index 000000000..5bb712db1 --- /dev/null +++ b/1223/CH7/EX7.15/Ex7_15.sce @@ -0,0 +1,36 @@ +clear; +clc; +//Example 7.15 +V1=5; +V=-5; +Rs=0.1; +R1=40; +R2=5.72; +Re=0.5; +Rc=5; +Rl=10; +b=150; +Vbe=0.7; +C1=35; +C2=4; +Vt=0.026; +Icq=1.02; +gm=39.2; +r=3.82; +x=Re*Rs/(Re+Rs); +t=r/(1+b); +y=t*x/(t+x); +Tp=y*C1; +printf('\ntime constant=%.3f ns\n',Tp) +Tp=0.679*10^-3;//micro sec +f=1/(2*%pi*Tp); +printf('\nupper frequency =%.3fMHz\n',f) +T=C2*Rc*Rl/(Rc+Rl); +printf('\ntime constant=%.3f ns\n',T) +T=13.3*10^-3;//micro sec +f=1/(2*%pi*T); +printf('\nupper frequency=%.2f MHz\n',f) +x=Rc*Rl/(Rc+Rl); +y=Re*t/(Re+t); +Av=gm*x*(y/(y+Rs)); +printf('\nmidband voltage gain=%.2f \n',Av) diff --git a/1223/CH7/EX7.16/Ex7_16.sce b/1223/CH7/EX7.16/Ex7_16.sce new file mode 100755 index 000000000..d08c62728 --- /dev/null +++ b/1223/CH7/EX7.16/Ex7_16.sce @@ -0,0 +1,37 @@ +clear; +clc; +//Example 7.16 +V1=5; +V=-5; +Rs=0.1; +R1=42.5; +R2=20.5; +R3=28.3; +Re=5.4; +Rc=5; +Rl=10; +b=150; +Vbe=0.7; +C1=35; +C2=4; +Vt=0.026; +Icq=1.02; +gm=39.2; +r=3.820; +Rb=R2*R3/(R2+R3); +x=Rb*r/(Rb+r); +y=Rs*x/(x+Rs); +Tp=y*(C1+2*C2); +printf('\ntime constant=%.3f ns\n',Tp) +Tp=Tp*10^-3;//micro sec +f=1/(2*%pi*Tp); +printf('\n3dB frequency =%0.3fMHz\n',f) +T=C2*Rc*Rl/(Rc+Rl); +printf('\ntime constant=%.2f ns\n',T) +T=T*0.001;//micro sec +f=1/(2*%pi*T); +printf('\nupper frequency=%.3f MHz\n',f) +x=Rc*Rl/(Rc+Rl); +y=Rb*r/(Rb+r); +Av=gm*x*(y/(y+Rs)); +printf('\nmidband voltage gain=%.f \n',Av) diff --git a/1223/CH7/EX7.17/Ex7_17.sce b/1223/CH7/EX7.17/Ex7_17.sce new file mode 100755 index 000000000..4ccd85a36 --- /dev/null +++ b/1223/CH7/EX7.17/Ex7_17.sce @@ -0,0 +1,33 @@ +clear; +clc; +//Example 7.17 +V1=5; +V=-5; +Rs=0.1; +R1=40; +R2=5.720; +Re=0.5; +Rc=5; +Rl=10; +b=150; +Vbe=0.7; +C1=35; +C2=4; +Vt=0.026; +Icq=1.02; +gm=39.2; +r=3.820; +t=r/(1+b); +t=t*0.001; +f=1/(2*%pi*C1*t); +printf('\nthe zero occurs at this frequency=%.2f MHz\n',f) +x=1+gm*Re*Rl/(Re+Rl); +Rb=R1*R2/(R1+R2) +d=x*r; +y=d*Rb/(d+Rb); +t=y*Rs/(y+Rs); +Tp=t*(C2+C1/x); +printf('\ntime constant=%.2f ns\n',Tp) +Tp=Tp*10^-3;//micro sec +f=1/(2*%pi*Tp); +printf('\n3dB frequency=%.f MHz\n',f) diff --git a/1223/CH7/EX7.2/Ex7_2.sce b/1223/CH7/EX7.2/Ex7_2.sce new file mode 100755 index 000000000..d185319ee --- /dev/null +++ b/1223/CH7/EX7.2/Ex7_2.sce @@ -0,0 +1,22 @@ +clear; +clc; +//Example 7.2 +Rs=1000; +Rp=10000; +Cs=1*10^-6; +Cp=3*10^-12; +Ts=(Rs+Rp)*Cs; +printf('\nopen circuit time constant=%.3f s\n',Ts) +Rs=1;//KOhm +Rp=10;//KOhm +Cp=3;//pF +Tp=Cp*Rs*Rp/(Rs+Rp); +printf('\nshort circuit time constant=%.3f ns\n',Tp) +fL=1/(2*%pi*Ts); +printf('\ncorner frequency fL=%.2f Hz\n',fL) +Tp=2.73*10^-3;//microsec +fH=1/(2*%pi*Tp); +printf('\ncorner frequency fH=%.3f MHz\n',fH) +fL=14.5*10^-6;//MHz +fbw=fH-fL; +printf('\nbandwidth =%.3fMHz\n',fbw) diff --git a/1223/CH7/EX7.3/Ex7_3.sce b/1223/CH7/EX7.3/Ex7_3.sce new file mode 100755 index 000000000..c75ee8a65 --- /dev/null +++ b/1223/CH7/EX7.3/Ex7_3.sce @@ -0,0 +1,32 @@ +clear; +clc; +//Example 7.3 +R1=51.2; +R2=9.6; +Rc=2; +Re=.4; +Rsi=.1; +Vt=0.026; +Cc=1; +Vcc=10; +Vbe=0.7; +b=100; +Rb=8.08; +Icq=1.81; +gm=Icq/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm) +r=b*Vt/Icq; +printf('\ndiffusion resistance=%.2f KOhm\n',r) +x=r+(1+b)*Re; +y=x*R2/(x+R2); +Ri=y*R1/(R1+y); +printf('\ninput resistance=%.3f KOhm\n',Ri) +Ts=(Rsi+Ri)*Cc; +printf('\ntime constant=%.3f ms\',Ts) +Ts=6.87*10^-3;//Sec +fL=1/(2*%pi*Ts); +printf('\ncorner frequency fL=%.3f Hz\n',fL) +Rib=r+(1+b)*Re; +printf('\nRib=%.3f KOhm\n',Rib) +Av=(gm*r*Rc/(Rsi+Ri))*Rb/(Rb+Rib); +printf('\nsmall signal voltage gain=%.2f\n',Av) diff --git a/1223/CH7/EX7.4/Ex7_4.sce b/1223/CH7/EX7.4/Ex7_4.sce new file mode 100755 index 000000000..f0e336f3e --- /dev/null +++ b/1223/CH7/EX7.4/Ex7_4.sce @@ -0,0 +1,10 @@ +clear; +clc; +//Example 7.4 +fL=20*10^-3;//KHz +Rd=6.7; +Rl=10; +Ts=1/(2*%pi*fL); +printf('\ntime constant=%.3f ms\n',Ts) +Cc=Ts/(Rd+Rl); +printf('\ncoupling capacitance=%.3f microF\n',Cc) diff --git a/1223/CH7/EX7.5/Ex7_5.sce b/1223/CH7/EX7.5/Ex7_5.sce new file mode 100755 index 000000000..98e487db8 --- /dev/null +++ b/1223/CH7/EX7.5/Ex7_5.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 7.5 +b=100; +Vbe=0.7; +Rs=500; +Rb=100000; +Re=10000; +Rl=10000; +Va=120; +Ccc2=1*10^-6; +Icq=0.838*0.001; +r=3100;//small signal parameter +gm=32.2*0.001; +ro=143000; +x=(r+Rs*Rb/(Rs+Rb))/(1+b); +y=ro*x/(ro+x); +Ro=Re*y/(Re+y); +printf('\noutput resistance of emitter=%.2f Ohm\n',Ro) +Ts=(Ro+Rl)*Ccc2; +printf('\ntime constant=%.2f s\n',Ts) +fL=1/(2*%pi*Ts); +printf('\n3dB frequency=%.2f Hz\n',fL) diff --git a/1223/CH7/EX7.6/Ex7_6.sce b/1223/CH7/EX7.6/Ex7_6.sce new file mode 100755 index 000000000..c6ce8aeb8 --- /dev/null +++ b/1223/CH7/EX7.6/Ex7_6.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 7.6 +Rs=3.2; +Rd=10; +Rl=20; +Cl=10; +Vtp=-2; +Kp=0.25; +Idq=0.5; +Vsgq=3.41; +Vsdq=3.41; +gm=2*Kp*(Vsgq+Vtp); +printf('\ntransconductance =%.3fmA/V\n',gm) +Tp=Cl*Rd*Rl/(Rd+Rl); +printf('\ntime constant=%.3f ns\n',Tp) +Tp=66.7*10^-3;//micro sec +fH=1/(2*%pi*Tp); +printf('\ncorner frequency=%.2f MHz\n',fH) +Av=(gm*Rd*Rl/(Rd+Rl))/(1+gm*Rs); +printf('\nmaximum small signal voltage gain=%.2f\n',Av) diff --git a/1223/CH7/EX7.7/Ex7_7.sce b/1223/CH7/EX7.7/Ex7_7.sce new file mode 100755 index 000000000..4f3a38f1a --- /dev/null +++ b/1223/CH7/EX7.7/Ex7_7.sce @@ -0,0 +1,39 @@ +clear; +clc; +//Example 7.7 +Vbe=0.7; +b=100; +Re=.5; +Rc=5; +Rl=10; +R1=40; +Cc=10; +R2=5.7; +Rs=.1; +Vt=0.026; +Icq=0.99; +gm=Icq/Vt; +printf('\ntransconductance=%.3f mA/V\n',gm) +r=b*Vt/Icq; +printf('\ndiffusion resistance=%.2f KOhm\n',r) +Ri=r+(1+b)*Re; +printf('\ninput resistance=%.2f KOhm\n',Ri) +x=Rc*Rl/(Rc+Rl); +y=R1*R2/(R1+R2); +t=y*Ri/(y+Ri); +Av=gm*r*x*(y/(y+Ri))*(1/(Rs+t)); +printf('\nmaximum small signal voltage gain=%.2f\n',Av) +Ts=(Rs+t)*Cc; +printf('\ntime constant=%.3f ms\n',Ts) +Ts=46.6*0.001;//sec +Cl=15; +Tp=x*Cl; +printf('\ntime constant=%.3f ns\n',Tp) +fL=1/(2*%pi*Ts); +printf('\nlower corner frequency=%.2f Hz\n',fL) +Tp=50*10^-3;//micro sec +fH=1/(2*%pi*Tp); +printf('\nupper corner frequency=%.2f MHz\n',fH) +fL=3.4*10^-6;//MHz +fbw=fH-fL; +printf('\nbandwidth =%.2fMHz\n',fbw) diff --git a/1223/CH7/EX7.8/Ex7_8.sce b/1223/CH7/EX7.8/Ex7_8.sce new file mode 100755 index 000000000..0b4b40890 --- /dev/null +++ b/1223/CH7/EX7.8/Ex7_8.sce @@ -0,0 +1,30 @@ +clear; +clc; +//Example 7.8 +Re=4; +Rc=2; +Rs=0.5; +Vt=0.026; +Ce=1*10^-3; +V1=5; +Icq=1.06; +V2=-5; +b=100; +Vbe=0.7; +gm=Icq/Vt; +printf('\ntransconductance =%.2fmA/V\n',gm) +r=b*Vt/Icq; +printf('\ndiffusion resistance=%.2f KOhm\n',r) +Ta=Re*Ce; +printf('\ntime constant Ta=%ef s\n',Ta) +Tb=(Re*Ce*(Rs+r))/(Rs+r+(1+b)*Re); +printf('\ntime constant Tb=%e s\n',Tb) +fA=1/(2*%pi*Ta); +printf('\ncorner frequency =%.2fHz\n',fA) +Tb=2.9*0.01;//msec +fB=1/(2*%pi*Tb); +printf('\ncorner frequency =%.2fkHz\n',fB) +Av=(gm*r*Rc)/(Rs+r+(1+b)*Re); +printf('\nlimiting low frequency horizontal asymptote=%.2f\n',Av) +Av=gm*r*Rc/(Rs+r); +printf('\nnlimiting high frequency horizontal asymptote=%.2f\n',Av) diff --git a/1223/CH7/EX7.9/Ex7_9.sce b/1223/CH7/EX7.9/Ex7_9.sce new file mode 100755 index 000000000..91759e449 --- /dev/null +++ b/1223/CH7/EX7.9/Ex7_9.sce @@ -0,0 +1,8 @@ +clear; +clc; +//Example 7.9 +r=2600; +C1=2*10^-6; +C2=0.1*10^-6; +fB=1/(2*%pi*r*(C1+C2)); +printf('\n3dB frequency=%.2f MHz\n',fB) diff --git a/1223/CH8/EX8.11/Ex8_11.sce b/1223/CH8/EX8.11/Ex8_11.sce new file mode 100755 index 000000000..6d6b2a2b9 --- /dev/null +++ b/1223/CH8/EX8.11/Ex8_11.sce @@ -0,0 +1,38 @@ +clear; +clc; +//Example 8.11 +R1=2;//KOhm +R2=R1; +Rl=.1;//KOhm +b=60; +Vbe=0.6; +Veb=0.6; +V1=15; +V2=V1; +iR1=(V1-Vbe)/R1; +//iR1=iR2=iE1=iE2 +printf('\niR1=%.2f mA\n',iR1) +vo=10; +io=vo/Rl; +printf('\noutput current=%.3f mA\n',io) +iB3=100/61; +printf('\niB3=%.3fmA\n',iB3) +iR1=(V1-(10+Vbe))/R1; +printf('\ncurrent in R1=%.3f mA\n',iR1) +iE1=iR1-iB3; +printf('\niE1=%.3f mA\n',iE1) +iB1=iE1/(1+b); +iB1=iB1*1000;//micro A +printf('\niB1=%.3f microA\n',iB1) +iE2=(10-0.6+15)/R1; +printf('\niE2=%.3f mA\n',iE2) +iB2=iE2/(1+b); +iB2=iB2*1000; +printf('\niB2=%.3f microA\n',iB2) +Ii=iB2-iB1; +printf('\ninput current=%.3f microA\n',Ii) +Ii=Ii*0.001;//mA +Ai=io/Ii; +printf('\ncurrent gain=%.2f\n',Ai) +Ai=(1+b)*R1/(2*Rl); +printf('\npredicted current gain=%.2f\n',Ai) diff --git a/1223/CH8/EX8.2/Ex8_2.sce b/1223/CH8/EX8.2/Ex8_2.sce new file mode 100755 index 000000000..ceca6c52f --- /dev/null +++ b/1223/CH8/EX8.2/Ex8_2.sce @@ -0,0 +1,17 @@ +clear; +clc; +//Example 8.1 +//let thermal resistance parameters be R +Rdcase=1.75;//degree celsius per watt +Rcsnk=1;//degree celsius per watt +Rsamb=5;//degree celsius per watt +Rcamb=50;//degree celsius per watt +Tamb=30;//ambient temperature +Tjmax=150;//maximum junction temperature +Tdev=150;//device temperature +//when no heat sink is used +P=(Tjmax-Tamb)/(Rdcase+Rcamb); +printf('\nmaximum power dissipation=%.2f W\n',P) +//when heat sink is used +P=(Tjmax-Tamb)/(Rdcase+Rcsnk+Rsamb); +printf('\nmaximum power dissipation=%.2f W\n',P) diff --git a/1223/CH8/EX8.3/Ex8_3.sce b/1223/CH8/EX8.3/Ex8_3.sce new file mode 100755 index 000000000..c0eecce6a --- /dev/null +++ b/1223/CH8/EX8.3/Ex8_3.sce @@ -0,0 +1,13 @@ +clear; +clc; +//Example 8.3 +Rcsnk=1;//degree celsius per watt +Rsamb=5;//degree celsius per watt +Tjmax=175;//maximum junction temperature +Toc=25; +Tamb=25; +Pr=20;//rated power W +Rdcase=(Tjmax-Toc)/Pr; +printf('\ndevice to case thermal resistance=%.2f °C/W\n',Rdcase) +P=(Tjmax-Tamb)/(Rdcase+Rcsnk+Rsamb); +printf('\nmaximum power dissipation=%.2f W\n',P) diff --git a/1223/CH8/EX8.7/Ex8_7.sce b/1223/CH8/EX8.7/Ex8_7.sce new file mode 100755 index 000000000..1a1b986e0 --- /dev/null +++ b/1223/CH8/EX8.7/Ex8_7.sce @@ -0,0 +1,21 @@ +clear; +clc; +//Example 8.7 +Vdd=10; +Rl=20; +K=0.2; +Vt=1; +vo=5; +iL=vo/20; +printf('\niL=%.2f A\n',iL) +Idq=0.05; +//Idq=K*(Vbb/2-Vt) +Vbb=(sqrt(Idq/K)+1)*2; +printf('\nVbb=%.2f V\n',Vbb) +iD=iL; +Vgsn=sqrt(iD/K)+Vt; +printf('\nVgsn=%.2f V\n',Vgsn) +Vsgp=Vbb-Vgsn; +printf('\nVsgp=%.2f V\n',Vsgp) +vi=vo+Vgsn-Vbb/2; +printf('\ninput voltage=%.2f V\n',vi) diff --git a/1223/CH8/EX8.8/Ex8_8.sce b/1223/CH8/EX8.8/Ex8_8.sce new file mode 100755 index 000000000..b87412fea --- /dev/null +++ b/1223/CH8/EX8.8/Ex8_8.sce @@ -0,0 +1,27 @@ +clear; +clc; +//Example 8.8 +Vcc=24; +Rl=8; +P=5; +Vbe=0.7; +b=100; +Vp=sqrt(2*Rl*P); +printf('\npeak output voltage=%.2f V\n',Vp) +Ip=Vp/Rl; +printf('\npeak output current =%.2fA\n',Ip) +a=0.9*Vcc/Vp; +printf('\na=%.2f\n',a) +Icq=Ip/(0.9*a); +printf('\nIcq=%.3f A\n',Icq) +Pq=Vcc*Icq; +printf('\nmaximum power dissipated in the transistor=%.2f W\n',Pq) +Ibq=Icq/b; +Ibq=Ibq*1000;//mA +printf('\nbase current Ibq=%.2f mA\n',Ibq) +Rth=2.500; +//Vth=Vcc*Rth/R1 and Vth=Ibq*Rth+Vbe +R1=Vcc*Rth/(Ibq*Rth+Vbe); +printf('\nR1=%.2f KOhm\n',R1) +R2=Rth*R1/(R1-Rth); +printf('\nR2=%.2f KOhm\n',R2) diff --git a/1223/CH8/EX8.9/Ex8_9.sce b/1223/CH8/EX8.9/Ex8_9.sce new file mode 100755 index 000000000..f202b7fa0 --- /dev/null +++ b/1223/CH8/EX8.9/Ex8_9.sce @@ -0,0 +1,38 @@ +clear; +clc; +//Example 8.9 +Iso=3*10^-14; +Isq=10^-13; +b=75; +Vt=0.026; +Rl=8; +P=5; +Vp=sqrt(2*Rl*P); +printf('\npeak voltage Vp=%.2f V\n',Vp) +Vcc=Vp/0.8; +printf('\nsupply voltage=%.2f V\n',Vcc) +Ien=Vp/Rl; +printf('\nemitter current=%.3f A\n',Ien) +Ibn=Ien/(1+b); +Ibn=Ibn*1000;//mA +printf('\nbase current=%.2f mA\n',Ibn) +iD=0.020; +Vbb=2*Vt*log(iD/Iso); +printf('\nVbb=%.2f V\n',Vbb) +Icq=Isq*exp((Vbb/2)/Vt); +Icq=Icq*1000;//mA +printf('\nquiescent collector current=%.3f mA\n',Icq) +Ibias=20;//mA +iD=Ibias-Ibn; +printf('\ndrain current=%.3f mA\n',iD) +iD=iD*0.001;//A +Vbb=2*Vt*log(iD/Iso); +printf('\nVbb=%.2f V\n',Vbb) +Icn=1.12; +Vben=Vt*log(Icn/Isq); +printf('\nB-E voltage of Qn=%.2f V\n',Vben) +Vebp=Vbb-Vben; +printf('\nemitter base voltage of Qp=%.2f V\n',Vebp) +Icp=Isq*exp(Vebp/Vt); +Icp=Icp*1000;//mA +printf('\nIcp=%f mA\n',Icp) diff --git a/1223/CH9/EX9.5/Ex9_5.sce b/1223/CH9/EX9.5/Ex9_5.sce new file mode 100755 index 000000000..d45e41ddf --- /dev/null +++ b/1223/CH9/EX9.5/Ex9_5.sce @@ -0,0 +1,23 @@ +clear; +clc; +//Example 9.5 +Zl=0.1; +R1=10; +R2=1; +R3=1; +Rf=10; +Vt=-5; +iL=-Vt/R2; +printf('\nload current=%.3f mA\n',iL) +vL=iL*Zl; +printf('\nvoltage across the load=%.2f V\n',vL) +i4=vL/R2; +printf('\ni4=%.3f mA\n',i4) +i3=i4+iL; +printf('\ni3=%.3f mA\n',i3) +Vo=i3*R3+vL; +printf('\noutput voltage=%.2f V\n',Vo) +i1=Vt/R1; +i2=i1; +printf('\ni1=%.3f mA\n',i1) +printf('\ni2=%.2f mA\n',i2) diff --git a/1223/CH9/EX9.9/Ex9_9.sce b/1223/CH9/EX9.9/Ex9_9.sce new file mode 100755 index 000000000..892fb256c --- /dev/null +++ b/1223/CH9/EX9.9/Ex9_9.sce @@ -0,0 +1,9 @@ +clear; +clc; +//Example 9.9 +//Vo=(-1/R1*C2)*integrate((-1)dt) +x=integrate('(-1)','t',0,1) +Vo=10; +//let y=R1*C2 +y=-x/Vo; +printf('\nR1C2=%.2f ms\n',y) -- cgit