How many integrated circuits do you need to build up a power supply that’ll convert mains AC into a stable DC voltage? Would you believe, none? We just watched this video by [The Current Source ...

which was traced down to a dead electrolytic filter capacitor after days of crowd-sourced reverse-engineering and creating the first complete Centurion power supply schematic in probably many decades.

Capacitors with unique construction and failure modes are placed on the AC line to manage EMI modes and ensure user safety.

A system that converts AC current from the wall outlet into the DC currents required by electronic circuits. A computer power supply converts AC into multiple DC voltages. For example, 12 volts is ...

These could be batteries, solar panels, or a power supply connected to the mains - anything that can provide power to our circuit. A wire from the cell can then be connected to a component like a ...