Can anyone tell me why this circuit wont simulate... I've built it, and it runs fine... the first opamp is like a comparator, it saturates to one rail and that output is sent to the second opamp which creates a ramping voltage at the output, which is sent back to the other input of the first opamp and once it passes it's threshold it flips and saturates to the other rail... basically generating a square wave, while the integrator does it's sawtooth output... but I can't get it to simulate right in pspice... can anyone point out what I'm doing wrong?
much thanks!
Oh, I know I put the schematic in front of the waveforms... trust me they are all just constant straight lines all the way across... nothing is happening behind the schematic
![Integrator.JPG Integrator.JPG](https://www.electro-tech-online.com/data/attachments/27/27624-c60e25929f09fb6925bb416c25240c42.jpg)
much thanks!
Oh, I know I put the schematic in front of the waveforms... trust me they are all just constant straight lines all the way across... nothing is happening behind the schematic
![Integrator.JPG Integrator.JPG](https://www.electro-tech-online.com/data/attachments/27/27624-c60e25929f09fb6925bb416c25240c42.jpg)
Last edited: