I am trying to use a IMS-1 H-Bridge with a 24V/20A psu and a motor 24V/20A. I already burned one of these H-bridges in one direction and I assume that was caused by a back EMF.
Specs of the H-bridge are:
Rated voltage: 5V-24V Maximum voltage: 5V-30V When R1 position meets with a short circuit, VCC and B + shorted. VCC output voltage is the same with input voltage of the drive. When R1 position open, VCC and B + disconnected. VCC input voltage 3-12V.. Current Rating: 20A Peak Current: 59A Switching frequency: 1K to 200kHz
So this thing already got some sort of protection but probably not enough. what circuit can I add between H-bridge and motor to get extra protection? I want to make sure not more than 59A / 30V come back to it, better far below that. I read a lot about circuits for this but all describe the circuit inside the H-bridge.
I am soldering for 30 years or more but my knowledge is like limited W/V=A :-/