En route to getting the off-the-peg DC-51 motor speed controller to better suit my small milling machine, I had a go at working out what the circuit is. Approx circuit of DC-51 motor speed controller ...

The sled is powered by two DC electric motors driving a ... to link the track to the bike motors. Two motor controllers enable basic speed control, while a beefy battery carries enough juice ...

A4963, as the chip is called, needs three n-channel – p-channel mosfet pairs to switch motor current, plus a dc supply of 4.2 to 50V. The motor is controller using trapezoidal ... friction loads”, ...

[Raynerd] wanted a new spindle for his CNC machine and thought that a brushless DC motor would be a great ... A general RC Vehicle electronic speed control and a servo tester work in conjunction ...