A 2-stage Transistor Amplifier
First decide gain A (positive number) and operating point:
hFE=
(transistor gain)
A=
(A = R4/R5+1)
Vcc=
volt
Ic1=
amp
(first transistor bias)
Ic2=
amp
(second transistor bias)
R2=
ohm
(affect input impedance)
Now compute R3, R4 and R5:
R3=
ohm
R4=
ohm
R5=
ohm
Possibly adjust R1,R3,R4 and R5 and compute R1:
R1=
ohm
Possibly adjust R1,R2,R3,R4 and R5 and compute operating point:
Ve=
volt
Vb=
volt
Vc=
volt
Ic1=
amp
Ic2=
amp
