blob: ceb879c33e7e2a0e2b2bd65934ee2c6109a2cc2b (
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
|
//Example 3.17
clc
disp("Refer example 3.15")
disp(" A_vf = -h_fe*Rc*[1/1+(Rs/Rb)] / R''s+h_ie+(1+h_fe)*Re where R''s = Rs||R1||R2")
avf=(-50*(4*10^3)*[1/(1+(1000/9000))])/(900+1000+((1+150)*1000))
format(6)
disp(avf," A_vf =")
gmf=-1.177/(4*10^3)
format(9)
disp(gmf," G_Mf = A_vf / R_L =")
disp(" beta = Vf / Io = Ie*Re / Io = -Io*Re / Io = -Re = -1 K")
disp(" G_Mf = G_M / 1+beta*G_M")
gm=1/((1/(-2.943*10^-4))+1000)
format(9)
disp(gm,"Therefore, G_M =")
d=1+(-1000*-4.17*10^-4)
format(6)
disp(d," D = 1 + G_M*beta =")
ri=1+((2*9)/(2+9)) // in k-ohm
disp(ri," R_i(in k-ohm) = Rs+(h_ie+Re) || R_D =")
rif=2.636*1.417 // in k-ohm
format(6)
disp(rif," R_if(in k-ohm) = R_i * D =")
disp(" R_o = infinity")
disp(" R_of = R_o * D = infinity")
disp(" R''_of = R_of || R_L = R_L = 4 k-ohm")
|
