So he decided to replace the stepper motor controller in his turntable and document ... You’ve also got to solder wires coming from the original DC jack and power switch to the new board to ...

[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo ... needed to read the encoder, control the motor rotation and listen on the ‘stepper motor driver’ interface ...

We will discuss shunt wound, series wound, compound wound, servo, stepper, and torque motors, with a detailed explanation of how commutation and control are implemented in these designs. We will have ...