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| Problem power supply Long Wey PS-K3010DF |
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| AlCarlos:
Hello everyone I take advantage of my new subscription to your site to inform you that I have a problem with my 10Ampere Long Wey PS-K3010DF power supplying a LW-K305D-1 motherboard that is similar to the 5 Amp power supply K305D. The problem with my Long Wey PS-K3010DF is that it stays fixed at 11 ampere maximum and turning the non-adjusting pot always stays at 11 ampere. Can anyone help me to solve this problem? I do not even know where to begin with. Thanks to who solves the problem |
| nvmR:
Welcome to the forum. What happens when the load is disconnected? |
| AlCarlos:
Thanks. The current goes to zero ampere. |
| nvmR:
try to use a simple resistor as a load, and see if it behaves ok. You can cut it off some junk pcb. Try to characterize it under ohms law: I = V/R. See if at some voltage level, your supply starts failing. If not, get some ceramic resistors with a high wattage, and repeat. If all is ok, then your first load is probably a short, or very low resistance. |
| AlCarlos:
Thanks for helping me. I'm going to look for a power resistor and make the suggested measurements. I used a 12V/35W automotive lamp and got the following results: 12V - 2.54A 6V - 1.74A 3V -1.21A What do you think? |
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