I want to design a circuit to dissipate the reverse energy from BLDC motor, can I use PWM control technique in voltage sense circuit in order to switch on the power circuit?
In detail : In my application the motor is operating at 48 V , during deceleration the voltage rises to 52-55 V, this change in voltage has to be sensed by voltage sense circuit and it has to generate the pulse to activate the power circuit. ( The power circuit consist of N-channel Power Mosfet and braking resistor).
Without the help of any external circuit how can I generate PWM pulses from voltage sense circuit? Can I use SG3525 IC for this?