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- TL;DR Summary
- Tried to use it as a battery charger to measure current and voltage. Hooked it up backwards - OOPS.
I have a Multicomp 0-30V 0-5 amp power supply. I did some tests using it as a battery charger. It worked very well the first few times, then I accidently hooked it up backwards and killed it. There was light sparking when this happened. No fuses blew. It powers up normally, and I can program in any voltage and current limit. When I turn on the output, it immediately goes into current limit at any voltage over about 0.1 volts.
I looked inside and saw multiple circuit boards with SMDs. I am not going to try to reverse engineer this thing. Does anybody know if this problem is likely some easy to replace component (no SMDs)?
And a side question. That big toroidal thing that looks like a transformer has six pairs of visible wires coming out. I can understand one pair for input, another pair for output, but what could be the reason for another four pairs of wires?
I looked inside and saw multiple circuit boards with SMDs. I am not going to try to reverse engineer this thing. Does anybody know if this problem is likely some easy to replace component (no SMDs)?
And a side question. That big toroidal thing that looks like a transformer has six pairs of visible wires coming out. I can understand one pair for input, another pair for output, but what could be the reason for another four pairs of wires?