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Old 30th July 2004, 09:22 AM   #1
pokka is offline pokka  South Africa
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Join Date: Jul 2004
Location: South Africa
Talking PC Power Supply transformers

Hi guys, I'm new to this site, so please bear with me.
I wanna build myself a 700W-1000W SMPS for an amplifier for my car. I wanna use a push-pull topology, but the problem I'm facing, is the design of the transformer.
I've got alot of broken ATX power supllies laying around in the garrage. Can I use the big transformer core and rewind them to suit my needs.
Does anyone know the specs of all those cores used in an ATX SMPS.
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Old 31st July 2004, 01:46 PM   #2
Mikett is offline Mikett  Canada
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Join Date: Aug 2003
Location: Toronto
I don't know much about SMPSs but when I think of it, you've hit upon a great idea. The cores may not be big enough for the total wattage you're looking for, but if you use say one or two channels for each one, it might be good. I don't know of any amps that use a dedicated PS for each channel, save for mono amps.
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Old 1st August 2004, 01:51 PM   #3
Tensop is offline Tensop  Lebanon
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Join Date: Jul 2003
Location: Chapel St.
EI cores of that size are very easy to find
get a bigger one.. the avg computer psu is only capable of about 200-350 watts
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Old 3rd August 2004, 07:25 AM   #4
Optical is offline Optical  New Zealand
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Join Date: Nov 2002
Location: Auckland, New Zealand
check silicon chip magazine september 2003 for an article on modding PC smpsu's
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