Look what I found here on my junk closet: an Apple II power supply. For its time (1977) it was a breakthrough, since until then switching mode power supplies weren't used. Designed by Rod Holt, it doesn't differ a lot from power supplies used on current-day PCs, as we've seen on our Anatomy of Switching Power Supplies tutorial. We disassembled it to show you how it worked.
Read on over at Hardware Secrets.
Talking About Power Supplies
