Sine wave into PWM

@LoveEng

9 years ago

https://everycircuit.com/circuit/6366253626163200

1st Op-Amp for generating Sin wave as f=1/2#RC ; 2nd Op-Amp for generating triangular wave which it's frequency f > 20 time than the first one; 3rd Op-Amp is to compare the two signals and produce PWM