Prelab 5, Exercise 7: Feedback
*-------------------------------------------------------------------------
* EE122 Prelab 5
* Exercise 7: Feedback
*-------------------------------------------------------------------------

.model Transmodel npn (IS=1.3E-14 BF=100 TF= 0.9ns CJE=6pF CJC=5pF)

* You fill in the ??? parameters

*--------------
* DC components
*--------------
Vcc VCC 0 12V
R1 VCC VBG 150k
Q1 VCG VBG VEG Transmodel
R2 VBG 0 15k
RC VCC VCG 10k
RE VEG 0 470

*--------------
* AC components
*--------------
Vss Vin 0 ac 1V
RS Vin VX 1k
C3 VX VBG 100uF
C6 VEG 0 100uF
C5 VCG Out 25uF
RL Out 0 100k
C4 VCG VBG ???

*------------
* AC Response
*------------
.ac dec 20 1 100meg
.print v(Out) vdb(Out) vp(Out)

*--------
* Options
*--------
.op
.option post

.alter Shunt
C2 VCG Vy 10uF
RF Vy VBG 100k

.alter Series
C6 VEG 0 0F

.end