17-09-2019, 04:00 PM
(This post was last modified: 17-09-2019, 04:01 PM by ppppenguin.)
Nice idea, Tracy. Old computer PSUs are junkbox items. I'll have a couple of the B&B stall this Sunday. A few small things to remember:
1: You will need to strap one of the pins to 0V (can't remember which one) to allow it to turn on when you turn on the mains
2: The 12V output current may be rather low for what Mike needs
3: You'll almost certainly need to draw some current (1 or 2 amps?) from the main 5V or 3.3V output to get a stable and sensible 12V output
Plenty of articles on using PC PSUs as bench PSUs. A very casual look gave me this: https://www.electronics-tutorials.ws/blo...upply.html
1: You will need to strap one of the pins to 0V (can't remember which one) to allow it to turn on when you turn on the mains
2: The 12V output current may be rather low for what Mike needs
3: You'll almost certainly need to draw some current (1 or 2 amps?) from the main 5V or 3.3V output to get a stable and sensible 12V output
Plenty of articles on using PC PSUs as bench PSUs. A very casual look gave me this: https://www.electronics-tutorials.ws/blo...upply.html
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
