PWM control of small PM DC motor

Thread Starter

AlbertHall

Joined Jun 4, 2014
11,222
The idea from Roman Black senses the variations of current as the motor brushes cross over commutator segments so any ripple on the supply is likely to mess up that detection.
 

Thread Starter

AlbertHall

Joined Jun 4, 2014
11,222
Measuring the speed of the motor would also allow detecting overspeed when/if it runs out of water and shut it down.
 
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