Hello,
I’m currently trying to simulate and controll the ‘20.4:1 Metal Gearmotor 25Dx65L mm HP 12V with 48 CPR Encoder’ (Pololu Item 4843) by using an Arduino Uno and the ‘Dual TB9051FTG Motor Driver Shield for Arduino’ (Pololu Item 2520).
The issue is that I’m measuring spikes in the current, that occure 3 times per motor revolution (61.2 times per shaft revolution). I’d now like to check wether those are commutation spikes or something else.
Therefore I am looking for information on the number of rotor poles, stator poles and commutation segments or a graphic of the internal structure of the motor if available.
Thanks!