jaseg on Nostr: I bought some 5 year old, used large industrial power supplies for an upcoming ...

I bought some 5 year old, used large industrial power supplies for an upcoming project. Before turning them on, I decided to open them up to check for any loose parts. As I found out, these have a rather neat internal design. Like in any large power supply, they have an APFC circuit that feeds a couple hundred volt DC bus, which is then chopped and put through a chonky flyback transformer, whose output is then smoothed with an LC network. (1/n)

#electronics