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 ...

By stacking some small PCBs behind the motor body, it was possible to squeeze a DRV8837 DC motor driver and a pair of hall effect sensors on the first PCB layer, with the magnetic encoder nestled ...

The HC4040 provides a 7.2-MHz clock to CT0 and triggers CT0 at 28 kHz (7.2 MHz/256). The result is a variable-duty-factor PWM waveform at CT0's output (O 0).Q 1 and Q 2 buffer and boost the waveform ...

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 ...

And to someone who is in love with phase-locked loops (4046s to be precise), the only respectable way to stabilise such a thing is using one. Imagine my joy when I came across Design notes on ...