Quote:
Originally Posted by bloodhound31
I am adding three 51w 6A Peltiers.
Does anyone know how to power them?
Here are some photos and the power supply I am using. The problem is, I don't know which leads hanging out the back to use. I have a multimeter, but no idea how to use it.... willing to learn....
P.S. Yes, I do have internal fans.....
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dont use the wall adaptor! peltiers need lots of amps and they *will* kill a power supply that isnt giving it enough, especially if you put a heat load on the cold side.
the yellow is +12v
the red is +5v
the 12v rail is the one your after, 8a will be really pushing it with what you have there, plug everything in and fire it up but keep your hands on the yellow wires
if they warm up at all turn it off immediately and get a bigger supply.
(not important for the supply you have but just if you buy a more powerful one which i think you will need to)
to get an atx power supply to run without plugging it into a mainboard you will need to bridge the green wire on the biggest (24 pin) connector to any black wire (in the same connector)
really for running peltiers you need something like this:
http://www.computronics.com.au/meanwell/sp-320/