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

---
 2375/CH9/EX9.2/ex9_2.sce | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 2375/CH9/EX9.3/ex9_3.sce | 12 ++++++++++++
 2375/CH9/EX9.4/ex9_4.sce | 18 ++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100755 2375/CH9/EX9.2/ex9_2.sce
 create mode 100755 2375/CH9/EX9.3/ex9_3.sce
 create mode 100755 2375/CH9/EX9.4/ex9_4.sce

(limited to '2375/CH9')

diff --git a/2375/CH9/EX9.2/ex9_2.sce b/2375/CH9/EX9.2/ex9_2.sce
new file mode 100755
index 000000000..2fea709e3
--- /dev/null
+++ b/2375/CH9/EX9.2/ex9_2.sce
@@ -0,0 +1,46 @@
+// Exa 9.2
+clc;
+clear;
+close;
+format('v',5)
+// Given data
+bita= 100;
+V_B1= 5;// in V
+V_E1= 4.3;// in V
+R_E1= 4.3*10^3;// in ohm
+V_E2= 3.6;// in V
+R_E2= 3.6*10^3;// in ohm
+R_C=4*10^3;// in ohm
+R_L= 4*10^3;// in ohm
+R1= 100*10^3;// in ohm
+R2= 100*10^3;// in ohm
+gm= 40*10^-3;// in A/V
+re= 25;// in W
+r_pie= 2.5*10^3;// in W
+f_r= 400*10^6;// in Hz
+C_miu= 2*10^-12;// in F
+omega_T= 2*%pi*f_r;// in radian
+Rin= 38*10^3;// in ohm
+R_S= 4*10^3;// in ohm
+R_pie1= 80;//in ohm
+Ve1ByVb1= 0.98;// in V/V
+I_E1= V_E1/R_E1;// in A
+I_E2= V_E2/R_E2;// in A
+// We know, C_pie + C_miu= gm/ometa_T or
+C_Pie= gm/omega_T-C_miu;// in F
+Vb1ByVs= Rin/(Rin+R_S);// in V/V
+//Ve1ByVb1= R_E1*r_pie2/(R_E1*r_pie2)/(R_E1*r_pie2/(R_E1*r_pie2)+r_e1);
+VeByVb1= R_E1*r_pie/(R_E1*r_pie)/(R_E1*r_pie/(R_E1*r_pie)+R_E1);// in V/V
+// The gain of the common-emitter amplifier Q2
+VoByVe1= -gm*R_C*R_L/(R_C+R_L);// in V/V
+// The overall gain
+VoByVs= Vb1ByVs*Ve1ByVb1*VoByVe1;// in V/V
+RdeshS= R1*R2*R_S/(R1*R2+R2*R_S+R_S*R1);
+RdeshE1= R_E1*r_pie/(R_E1+r_pie);// in k ohm
+R_miu1= R_S*Rin/(R_S+Rin)*10^-3;// in k ohm
+R_pi1= (r_pie*(RdeshS+RdeshE1)/(1+gm*RdeshE1))/r_pie+(RdeshS+RdeshE1)/(1+gm*RdeshE1);
+R_T=round( RdeshE1*(r_pie+RdeshS)/(bita+1)/(RdeshE1+(r_pie+RdeshS)/(bita+1)));// in ohm
+disp(VoByVs,"The overall voltage gain in V/V is : ")
+disp(R_miu1,"The value of R_miu1 in ohm is : ")
+disp(R_pie1,"The value of R_pie1 in ohm is : ")
+disp(R_T,"The value of R_T in ohm is : ")
diff --git a/2375/CH9/EX9.3/ex9_3.sce b/2375/CH9/EX9.3/ex9_3.sce
new file mode 100755
index 000000000..03c2b9700
--- /dev/null
+++ b/2375/CH9/EX9.3/ex9_3.sce
@@ -0,0 +1,12 @@
+// Exa 9.3
+clc;
+clear;
+close;
+format('v',5)
+// Given data
+wH= '0.9*wp1';
+wp2='wp1*k';
+//wH= 1/sqrt(1/wp1^1+1/(k*wp1)^2)
+k= sqrt(0.9^2/(1-0.9^2));
+disp(k,"The value of k is : ")
+
diff --git a/2375/CH9/EX9.4/ex9_4.sce b/2375/CH9/EX9.4/ex9_4.sce
new file mode 100755
index 000000000..7aaca61cf
--- /dev/null
+++ b/2375/CH9/EX9.4/ex9_4.sce
@@ -0,0 +1,18 @@
+// Exa 9.4
+clc;
+clear;
+close;
+// Given data
+Rs = 1;// in k ohm
+Rs = Rs * 10^3;// in ohm
+omega_z = 10;// in rad/sec
+omega_p = 100;// in rad/sec
+//omega_z = 1/(Rs*Cs);
+Cs = 1/(Rs*omega_z);// in F
+disp(Cs*10^6,"The value of Cs in µF is");
+//omega_p = (g_m + (1/Rs))/Cs;
+g_m = omega_p*Cs-1/Rs;// in A/V
+g_m= g_m*10^3;// in mA/V
+disp(g_m,"The value of g_m in mA/V is")
+
+// Note: The unit of g_m in the book is wrong. It will be in mA/V not in nA/V.
-- 
cgit