As part of a power supply, I would like to generate a PWM signal, say 10 or 20 kHz, with variable duty cycle. That's the easy part. That signal would go through a driver and turn on the main switch.
But I would also like to generate another pulse of variable duration and delay, that is enclosed within the OFF time of the first signal. The second signal would turn on the synchronous rectifier(s).
But I would also like to generate another pulse of variable duration and delay, that is enclosed within the OFF time of the first signal. The second signal would turn on the synchronous rectifier(s).