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 Message Boards » » Using an AT / ATX switching power supply as... Page [1]  
LaserSoup
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a general lab power supply.

Has anyone done this? and if so what do I need to know to do the same thing?

7/26/2006 10:52:16 AM

darkone
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What are you powering?

7/26/2006 10:56:47 AM

LaserSoup
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Several LEDs and a fluorescent lamp.

7/26/2006 11:16:06 AM

darkone
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I've never done it, but I don't see why you couldn't. Just find a wiring diagram for one. You'll have to use a jumper or switch to get it to power on. I've done something similar to power cold-cathode lamp arrays before.

7/26/2006 11:17:52 AM

zxappeal
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Yep you can...but don't you have to put some kind of load resistor across the 5v terminals?

7/26/2006 11:27:58 AM

LaserSoup
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Quote :
"but don't you have to put some kind of load resistor across the 5v terminals?"


I've read that there needs to be a constant flow in order for it to work and I wonder if that the key.

7/26/2006 12:08:21 PM

scud
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you could almost definitely power the LEDs off the supply rail.

I don't know about the lamp but if you want the +12 you're going to need to pull down the power switch pin.

7/26/2006 12:15:57 PM

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