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

---
 887/CH10/EX10.1/10_1.sce | 19 +++++++++++++++++++
 887/CH10/EX10.2/10_2.sce | 21 +++++++++++++++++++++
 887/CH10/EX10.3/10_3.sce | 16 ++++++++++++++++
 887/CH10/EX10.4/10_4.sce | 19 +++++++++++++++++++
 887/CH10/EX10.5/10_5.sce | 18 ++++++++++++++++++
 887/CH10/EX10.7/10_7.sce | 10 ++++++++++
 6 files changed, 103 insertions(+)
 create mode 100755 887/CH10/EX10.1/10_1.sce
 create mode 100755 887/CH10/EX10.2/10_2.sce
 create mode 100755 887/CH10/EX10.3/10_3.sce
 create mode 100755 887/CH10/EX10.4/10_4.sce
 create mode 100755 887/CH10/EX10.5/10_5.sce
 create mode 100755 887/CH10/EX10.7/10_7.sce

(limited to '887/CH10')

diff --git a/887/CH10/EX10.1/10_1.sce b/887/CH10/EX10.1/10_1.sce
new file mode 100755
index 000000000..d0225e771
--- /dev/null
+++ b/887/CH10/EX10.1/10_1.sce
@@ -0,0 +1,19 @@
+clc
+//ex10.1
+V_ss=2;
+R=1*10^3;
+V_D=[0:0.001:2];
+plot(V_D,10^3*(V_ss-V_D)/R)
+xtitle('load line plot','voltage in volts','current in milli-amperes')      //milli-10^-3
+//we use the equation V_ss=R*i_D+V_D
+//at point B
+i_D=V_ss/R;      //as V_D=0
+//at point A
+V_D=V_ss;      //as i_D=0
+//now we see intersection of load line with characteristic and we get following at operating point
+V_DQ=0.7;      //voltage
+I_DQ=1.3*10^-3;      //current
+//diode characteristic cannot be plotted
+disp(V_DQ,'diode voltage at operating point in volts')
+disp(I_DQ*10^3,'current at opeating point in milli-amperes')      //milli-10^-3
+
diff --git a/887/CH10/EX10.2/10_2.sce b/887/CH10/EX10.2/10_2.sce
new file mode 100755
index 000000000..a47d2ee46
--- /dev/null
+++ b/887/CH10/EX10.2/10_2.sce
@@ -0,0 +1,21 @@
+clc
+//ex10.2
+V_ss=10;
+R=10*10^3;
+V_D=[0:0.001:2];
+plot(V_D,10^3*(V_ss-V_D)/R)
+xtitle('load line plot','voltage in volts','current in milli-amperes')      //milli-10^-3
+//we use the equation V_ss=R*i_D+V_D
+//at point C
+i_D=V_ss/R;      //as V_D=0
+//now if we take i_D=0, we get V_D=10 which plots at a point far off the page
+//so we take the value on the right-hand edge of V-axis i.e.,V_D=2
+//at point D
+V_D=2;
+i_D=(V_ss-V_D)/R;
+//from the intersection of load line with characteristic
+V_DQ=0.68;
+I_DQ=0.93*10^-3;
+//diode characteristic cannot be plotted
+disp(V_DQ,'diode voltage at operating point in volts')
+disp(I_DQ*10^3,'current at opeating point in milli-amperes')      //milli-10^-3
diff --git a/887/CH10/EX10.3/10_3.sce b/887/CH10/EX10.3/10_3.sce
new file mode 100755
index 000000000..49a3c95f4
--- /dev/null
+++ b/887/CH10/EX10.3/10_3.sce
@@ -0,0 +1,16 @@
+clc
+//ex10.3
+R=1*10^3;
+//diode characteristic cannot be plotted
+//case a)V_ss=15
+V_ss=15;
+V_D=[-15:0.001:0];
+//from the intersection of load line and diode characteristic
+V_o=10;
+disp(V_o,'output voltage for Vss=15 in volts')
+//case b)V_ss=20
+V_ss=20;
+V_D=[-20:0.001:0];
+//from the intersection of load line and diode characteristic
+V_o=10.5;
+disp(V_o,'output voltage for Vss=20 in volts')
diff --git a/887/CH10/EX10.4/10_4.sce b/887/CH10/EX10.4/10_4.sce
new file mode 100755
index 000000000..2bf7453a3
--- /dev/null
+++ b/887/CH10/EX10.4/10_4.sce
@@ -0,0 +1,19 @@
+
+clc
+//ex10.4
+V_ss=24;
+R=1.2*10^3;
+R_L=6*10^3;
+//by grouping linear elements together on left side of diode
+V_T=V_ss*R_L/(R+R_L);      //thevenin voltage
+//zeroing sources 
+R_T=1/((1/R)+(1/R_L));      //thevenin resistance
+//load-line equation is V_T+R_T*i_D+V_D=0
+//locating the operating point
+V_D=-10;
+V_L=-V_D;      //load voltage
+I_s=(V_ss-V_L)/R;      //source current
+//diode characteristic cannot be plotted
+printf(" All the values in the textbook are approximated hence the values in this code differ from those of Textbook")
+disp(V_L,'load voltage in volts')
+disp(I_s,'source current in amperes')      //milli-10^-3
diff --git a/887/CH10/EX10.5/10_5.sce b/887/CH10/EX10.5/10_5.sce
new file mode 100755
index 000000000..83c419ec2
--- /dev/null
+++ b/887/CH10/EX10.5/10_5.sce
@@ -0,0 +1,18 @@
+clc
+//ex10.5
+V_1=10;
+V_2=3;
+R_1=4*10^3;
+R_2=6*10^3;
+//1)analysis by assuming D1 off and D2 on
+I_D_2=V_2/R_2;      //ohm's law
+//applying KVL
+V_D_1=7;      //contradiction to 'D1 is off'
+//this assumption is not correct
+
+//2)analysis by assuming D1 on and D2 off
+I_D_1=V_1/R_1;      //ohm's law
+//applying KVL
+V_D_2=-V_1+V_2+I_D_1*R_1;
+//we get V_D_2 which is consistent
+disp('correct assumption is D2 off and D1 on')
diff --git a/887/CH10/EX10.7/10_7.sce b/887/CH10/EX10.7/10_7.sce
new file mode 100755
index 000000000..2d31a9612
--- /dev/null
+++ b/887/CH10/EX10.7/10_7.sce
@@ -0,0 +1,10 @@
+clc
+//ex10.7
+V_1=3;
+R_1=20;
+//As given voltage source results in forward bias, we assume operating point is on line segment A
+//replacing diode with the equivalent circuit
+V_2=0.6;
+R_2=10;
+i_D=(V_1-V_2)/(R_1+R_2);      //KVL around the circuit
+disp(i_D*10^3,'current in the circuit in milli-amperes')      //milli-10^-3
-- 
cgit