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

---
 181/CH7/EX7.45/example7_45.sce | 71 ++++++++++++++++++++++++++++++++++++++++++
 181/CH7/EX7.45/example7_45.txt | 20 ++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100755 181/CH7/EX7.45/example7_45.sce
 create mode 100755 181/CH7/EX7.45/example7_45.txt

(limited to '181/CH7/EX7.45')

diff --git a/181/CH7/EX7.45/example7_45.sce b/181/CH7/EX7.45/example7_45.sce
new file mode 100755
index 000000000..ebe93dd89
--- /dev/null
+++ b/181/CH7/EX7.45/example7_45.sce
@@ -0,0 +1,71 @@
+// Calculate input admittance
+// Basic Electronics
+// By Debashis De
+// First Edition, 2010
+// Dorling Kindersley Pvt. Ltd. India
+// Example 7-45 in page 348
+
+clear; clc; close;
+
+// Given data
+mu=20; // Amplification factor
+rd=10*10^3; // Dynamic resistance in K-ohms
+gm=2*10^-3; // Transconductance in mA/V
+Cgs=3*10^-12; // Gate-source capacitance in pF
+Cds=1*10^-12; // Drain-source capacitance in pF
+Cgd=2*10^-12; // Gate-drain capacitance in pF
+
+// Calculation
+printf("(a)Rd = 50 K\n");
+printf("At f=1000Hz\n");
+Ygs=%i*2*%pi*10^3*Cgs;
+Yds=%i*2*%pi*10^3*Cds;
+Ygd=%i*2*%pi*10^3*Cgd;
+Yd=2*10^-6;
+gd=10^-4;
+Av=(-gm+Ygd)/(gd+Yd+Yds+Ygs);
+C1=Cgs+(17.7*Cgd);
+printf("Av = %0.1f\nC1 = %0.1e F\n\n",Av,C1);
+printf("At f=10^6Hz\n");
+Ygs1=%i*1.88*10^-6;
+Yds1=%i*0.628*10^-6;
+Ygd1=%i*1.26*10^-6;
+Av1=(-gm+Ygd1)/(gd+Yd+Yds+Ygs);
+R1=10^6/2.48;
+C2=37.6*10^-12;
+printf("Av = %0.1f\nR1 = %0.2e ohm\nC1=%0.1e F\n\n",Av1,R1,C2);
+Zl=%i*5*10^4;
+Yl=%i*2*10^-6;
+printf("(b)Zl = j5*10^4;Yl = j2*10^-6\n");
+printf("For f=1000Hz\n");
+Av2=-gm/(gd+Yl);
+C3=Cgs+(20.2*Cgd);
+R2=20.8*10^6;
+printf("Av = %0.2f\nR1 = %0.2e ohm\nC1 = %0.1e F\n\n",Av2,R2,C3);
+printf("For f=10^6Hz\n");
+Av3=(-200+(%i*1.26))/(10+(%i*3.88));
+C4=Cgs+(18.4*Cgd);
+R3=10^6/8.64;
+printf("Av = %0.2f\nR1 = %0.2e ohm\nC1 = %0.2e F",Av3,R3,C4);
+
+// Result
+// (a)Rd = 50 K
+// At f=1000Hz
+// Av = -19.6
+// C1 = 3.8e-011 F
+
+// At f=10^6Hz
+// Av = -19.6
+// R1 = 4.03e+005 ohm
+// C1=3.8e-011 F
+
+// (b)Zl = j5*10^4;Yl = j2*10^-6
+// For f=1000Hz
+// Av = -19.99
+// R1 = 2.08e+007 ohm
+// C1 = 4.3e-011 F
+
+// For f=10^6Hz
+// Av = -17.34
+// R1 = 1.16e+005 ohm
+// C1 = 3.98e-011 F 
\ No newline at end of file
diff --git a/181/CH7/EX7.45/example7_45.txt b/181/CH7/EX7.45/example7_45.txt
new file mode 100755
index 000000000..464429a7d
--- /dev/null
+++ b/181/CH7/EX7.45/example7_45.txt
@@ -0,0 +1,20 @@
+(a)Rd = 50 K
+At f=1000Hz
+Av = -19.6
+C1 = 3.8e-011 F
+
+At f=10^6Hz
+Av = -19.6
+R1 = 4.03e+005 ohm
+C1=3.8e-011 F
+
+(b)Zl = j5*10^4;Yl = j2*10^-6
+For f=1000Hz
+Av = -19.99
+R1 = 2.08e+007 ohm
+C1 = 4.3e-011 F
+
+For f=10^6Hz
+Av = -17.34
+R1 = 1.16e+005 ohm
+C1 = 3.98e-011 F 
\ No newline at end of file
-- 
cgit