On 05/15/2015 08:44 AM, [email protected] wrote: > As I understand an AC brushed motor(drill, router, saw) can be controlled > by varying the voltage with something like a light dimmer but with great > loss of torque > Can a motor like this be controlled with pwm > > Yes, but you still lose torque. It takes time for the current in the field to build up, due to inductance. If you were to rewire the motor so a separate DC field current could be supplied, and the armature was supplied the PWM DC, it would get full torque, and slow down much less under load.
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