Prelab 3, Exercise 7: Triangle Wave Oscillator
*-------------------------------------------------------------------------
* EE122 Prelab 3
* Exercise 7: Triangle Wave Oscillator
*-------------------------------------------------------------------------

.include 'UA741_model'

* You fill in the ??? parameters

* example UA741 usage -> X1 in+ in- cc+ cc- out  UA741
*----------------------------
* 1kHz Square wave oscillator
*----------------------------
X1 V1+ V1- cc+ cc- Out1 UA741
Vplus cc+ 0 12V
Vminus 0 cc- 12V
R2 Out1 V1+ ???
R1 V1+ 0 ???
R3 V1- Out1 ???
C1 V1- 0 0.047uF
Istart V1- 0 pwl(0,1mA 10us,0mA)

*-----------
* Integrator
*-----------
X2 0 V2- cc+ cc- Out UA741 
Ri Out1 V2- ???
Cf V2- Out ??? 
Rf V2- Out ???

*-------------------
* Transient Analysis
*-------------------
.tran 50us 20ms
.print tran v(Out)

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

.end