30-07-2015, 08:00 AM
Hi.
I'd agree that little or no heatsinking will be needed. In my last job I repaired the big ride on floor scrubbers, they operated on 36v and the drive motor can draw 100 amps the speed of which is controlled by PWM. Even at this load the MOSFETS would run cool. So long as the on off switching is sharp and clean you'll be fine with the fet in free air.
I'd agree that little or no heatsinking will be needed. In my last job I repaired the big ride on floor scrubbers, they operated on 36v and the drive motor can draw 100 amps the speed of which is controlled by PWM. Even at this load the MOSFETS would run cool. So long as the on off switching is sharp and clean you'll be fine with the fet in free air.
