Newbie level 6
I am making a pwm speed control for a wheelchair motor (24v 350 watts) and I put 2x 1200 uF on the power supply. I wonder if I should add another capacitor across the motor as well like the toy motors. But I don't see in the manufacturer's control unit big capacitors around the motor poles except the ones connecting the power supply. There are small surface mount capacitors as snubber network on the manufacturer board. Is there any capacitor that might be connected to the motor directly and Do I need to put one in case there isn't and how big should it be??