summaryrefslogtreecommitdiff
path: root/506/CH13/EX13.2.c/Example13_2c.sce
blob: ce92be220087952ebff1aa9926a9f0d4e6312186 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
clear;
clc;

//Caption:To find parameters of Current seris Fwwdback Amplifier
//Given Data
Gmf=-1;//Transconductance in mA/V
D=50;//Desensivity
Avf=-4;//Voltage Gain
Rs=1;//in K
hfe=150;
Vt=0.026;//in V

Gm=Gmf*D;

//B=-Re, D = 1+B*Gm = 1-B*Gm
Re=(1-D)/Gm;//in K

Rl=Avf/Gmf;//in K

// Gm= -hfe/(Rs+hie+Re)
hie= -(hfe/Gm)-Rs-Re;
Ri = Rs + hie +Re;
Rif = Ri*D
disp('K',Rif,'Rif=');


//end