initial commit / add all books

1 files changed, 45 insertions, 0 deletions

diff --git a/2375/CH4/EX4.1/ex4_1.sce b/2375/CH4/EX4.1/ex4_1.sce
new file mode 100755
index 000000000..7790a471c
--- /dev/null
+++ b/2375/CH4/EX4.1/ex4_1.sce
@@ -0,0 +1,45 @@
+// Exa 4.1

+clc;

+clear;

+close;

+format('v',6)

+// Given data

+R1 = 100*10^3;// in ohm

+R2 = 10*10^3;// in ohm

+h_fe = 50;

+h_oe = 1/40;// in ohm

+R_L = 5*10^3;// in ohm

+R_S= 5*10^3;// in ohm

+h_ie = 1.1*10^3;// in ohm

+h_re = 2.5*10^-4;

+R_B = (R1*R2/(R1+R2));// in ohm

+A_I = (-h_fe)/(1 + h_oe*R_L);

+disp(A_I,"The internal current gain is");

+//Internal input impedance, Zi = Vbe/Ib or 

+Zi = (h_ie + h_re*A_I*R_L);// in ohm

+Zi= Zi*10^-3;// in k ohm

+disp(Zi,"The internal input impedance in k ohm is");

+Zi= Zi*10^3;// in ohm

+//Internal voltage gain, Av = Vce/Vbe or 

+Av = (A_I*R_L)/Zi;

+disp(Av,"The internal voltage gain is");

+Ri = floor(R_B*Zi/(R_B+Zi));// in ohm

+Ri= Ri*10^-3;// in k ohm

+disp(Ri,"The overall input impedance in k ohm is");

+Ri= Ri*10^3;// in ohm

+// V_S= I_i*R_S+v_be or

+VS_by_vbe= Ri/(Ri+R_S);

+Avs= Av*VS_by_vbe;

+disp(Avs,"The overall voltage gain is : ")

+// R_B*(I_i-I_b)= Zi*I_b or

+I_bBYI_i= R_B/(R_B+Zi);

+A_IS= A_I*I_bBYI_i;

+disp(A_IS,"The overall current gain is : ")

+Rdesh_S= R_B*R_S/(R_B+R_S);// in ohm

+Rdesh_S= 3220

+I_bByVce= -h_re/(h_ie+Rdesh_S);

+Yo= h_oe-h_fe*h_re/(h_ie+Rdesh_S)*10^3;

+Zo= 1/Yo;

+disp(Zo,"The Output impedance in ohm is : ")

+

+