We always think it is interesting that a regular DC motor and a generator are about the same thing. Sure, each is optimized for its purpose, but inefficiencies aside, you can use electricity to rotate ...

[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly, but with a stepper motor-like interface. By stacking some small PCBs behind the motor body, it was ...

How optical rotary encoders can provide real-time motion feedback on motion applications using stepper motor-driven linear actuators. Stepper motor linear actuators with added optical encoders (From ...