I've built up a circuit based on the SimpleSwitcher workbench to convert +12V to -48V. I built up 5.
When I first powered the units up, I got the expected -48V and was very pleased.
That was 3 days ago. Today, I find that most of them have the +12V to GND input shorted! (Those that aren't shorted are displaying a weird condition.)
Any suggestions? I'm stumped!
Thanks
