Prelab 4, Exercise 6: Current-Limited Voltage Regulator
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* EE122 Prelab 4
* Exercise #6: Current-Limited Voltage Regulator
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.include 'UA741_model'
.model N3053 npn (Is=1e-14 rb=500)
.model N3904 npn (Is=1e-14 rb=500)

* You fill in the ??? parameters

Vcc vcc 0 23V
R1 vcc in+ ???
Vz in+ 0 5.1V   * Simple Model of Zener Diode
X1 in+ in- vcc 0 q1base UA741
Q1 vcc q1base vee N3053
Q2 q1base vee Out N3904
Ree vee Out 10
Rf Out in- 100k
Rg in- 0 ???
Rout Out 0 ???  * Output resistance - can be very small

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* Options
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.op

.end