Here are 4 simple 12V power supply circuits with output voltages around 12V. First power supply circuit is built with BD139, one zener diode and a few passive components. Each of the schematic is very ...

This simple variable power supply circuit has a low production cost and delivers an output voltage between 1,5 V and 15 V with a maximum current of 500 mA. Its stabilization is better than 2% if the ...

It’s all wrapped up in a neat slant-sided 3D-printed case that fits onto the ATX power supply itself. The result is a neat and tidy power supply built out of readily-available components.

On one end of the twisted pair is a power supply and decoder circuit, which sends 9 volts up the line to power the PIC sensor.