Talking About Power Supplies...
on May 22, 2006 - 12:08 PM
Look what I found here in 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.
click to enlarge Figure 1: Apple II power supply.
click to enlarge Figure 2: Apple II power supply.
click to enlarge Figure 3: Inside the Apple II power supply.
Total or partial reproduction of the contents of this site, as well as that of the texts available for downloading, be this in the electronic media, in print, or any other form of distribution, is expressly forbidden. Those who do not comply with these copyright laws will be indicted and punished according to the International Copyrights Law.
We do not take responsibility for material damage of any kind caused by the use of information contained in Hardware Secrets.