bhl777
Full Member level 6

Hi everyone, I am trying to input two siganls to a comparator, one is a sawtooth wave and another one is a DC level, then we can use the comparator to generate some duty cycle wave. This is how PWM works and I remembered a circuit which used capacitor to generator sawtooth wave by its charge and discharge.
Does anyone know about this kind of circuit and give me the guidance? Thank you very much!
Does anyone know about this kind of circuit and give me the guidance? Thank you very much!