You can salvage some nice motors out of optical drives but they can be tricky to control. That’s because brushless DC motors require carefully timed signals used in a process called Electronic ...

Because the module has two L9110 chips, it can drive two independent DC motors. Surprisingly, the L9110 dual-driver module works with DC voltages from 2.5 to 12 V, caters continuous current of 800 mA, ...

The current limit circuit (see diagram) compares this voltage to an adjustable negative voltage using an op-amp wired as a comparator – unlike many op-amps, LM324 op-amps can be used as comparators ...

So that any speed droop when loading the motor is due to this resistance. The trick, apparently, is to measure the internal dc resistance of the motor – ether with an ohm meter, or though applying a ...

Maxon Precision Motor's newly released DC servo motor controller, the ESCON 50/5 OEM module. This mini OEM plug in module is a 4 quadrant Pulse Width Modulated (PWM) servo motor controller that ...