ATX power supply schematic?

Robert

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Jul 31, 2002, 7:52:06 PM7/31/02

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Does anyone know where I can find a schematic for a fairly
current major brand ATX PC power supply? I already know
of one at the Czech site http://pavouk.comp.cz/hw/atxps.html,
for an older, DTK brand 200W supply.

cpemma

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Aug 2, 2002, 2:16:59 PM8/2/02

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There's a breakdown of the circuit blocks in Power Supply Repair PDF
File 580kb: http://www.nutsvolts.com/PDF_Files/PSRepair.pdf might help.

Alan Liefting

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Aug 2, 2002, 5:27:08 PM8/2/02

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You will have to reverse engineer the power supply yourself. ATX power
supply circuits are like hens teeth. That is to say - rare!

A PSU design is faily standard. Tracing out the circuit is not too
difficult. If it has generic control ics down load the data to help
you.

Alan Liefting

Tom MacIntyre

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Aug 2, 2002, 7:34:04 PM8/2/02

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Not an ATX supply.

Tom

Tom MacIntyre

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Aug 2, 2002, 7:42:05 PM8/2/02

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http://www.repairfaq.org/sam/reppic/atxps.gif

Tom

Alan Liefting

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Aug 2, 2002, 9:11:38 PM8/2/02

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The two links above are one and the same.

Tom MacIntyre

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Aug 2, 2002, 9:42:34 PM8/2/02

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Hmmm...didn't notice; thanks.

Tom

Eric

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Aug 3, 2002, 1:31:57 AM8/3/02

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Tom MacIntyre wrote:

> >> Does anyone know where I can find a schematic for a fairly
> >> current major brand ATX PC power supply? I already know
> >> of one at the Czech site http://pavouk.comp.cz/hw/atxps.html,
> >> for an older, DTK brand 200W supply.
> >
> >There's a breakdown of the circuit blocks in Power Supply Repair PDF
> >File 580kb: http://www.nutsvolts.com/PDF_Files/PSRepair.pdf might help.
> >
> >
>
> Not an ATX supply.

An ATX supply is basically the same as an AT supply electrically, with
an "ENABLE LOGIC 0" circuit added for the PS_ON, and a simple +5vsb
circuit not tied to the other outputs.

--
Better than hearing "Lady Day", or checking in at Monterey...
[Remove bodies from address for email.]

Sam Goldwasser

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Aug 3, 2002, 7:59:23 AM8/3/02

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tom__ma...@hotmail.com (Tom MacIntyre) writes:

> >Tom MacIntyre wrote:

> >> http://www.repairfaq.org/sam/reppic/atxps.gif

The one at reparifaq.org is the backup for when the .cz link
disappears. :)

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Michael A. Terrell

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Aug 3, 2002, 12:53:31 PM8/3/02

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Sam Goldwasser wrote:
>
> The one at reparifaq.org is the backup for when the .cz link
> disappears. :)
>
> --- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
> Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
> +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
> | Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

That's Sam for you! Always trying to stay one step ahead!
--

Michael A. Terrell
Central Florida

Check out my new web site and tell me what you think.
http://www.terrell.150m.com