The PC power supply has been a standard of the junk box ... DC at a few tens of kHz into a ferrite-cored transformer whose output is rectified to low voltage DC. The TL494 samples the output ...

A benchtop power supply is a key thing to have for any aspiring electronics hacker. While you can always buy one, plenty of us have old computer PSUs ... t offer variable output, which can ...

Your computer likely has multiple USB ports, and maybe even multiple types of ports on the same machine, but how does that impact their power output?

Cheap computer power supplies tend to come with low-quality components and materials, which themselves can cause unwanted and inconsistent voltage spikes; they may also have poor heat dispersal ...