Re: fake PC supplies
- From: Franc Zabkar <fzabkar@xxxxxxxxxxxxxxxx>
- Date: Tue, 24 May 2005 07:25:01 +1000
On Mon, 23 May 2005 21:45:35 +1000, "Adam. Seychell"
<invald@xxxxxxxxxxx> put finger to keyboard and composed:
>I'm recently seeing more cheap PC supplies on the market which appear to
>be fake, in that the clammed output power not impossible for the size of
>parts inside. e.g I have a 500W "Shaw" brand ATX supply, and its output
>inductor uses a piddly T106 (26mm OD) core. The 5V is specified at
>35Amps yet the output inductor winding is 2x1.2mm diam wire and the
>rectifiers for the 5V is a 15Ax2 Schottky device. This is typical for
>these very cheap power supplies. Similarly the 12V @ 18A output uses
>2x8A diode (STPR1620).
>
>I've also seen several other PC supplies that have completely omitted
>EMC components, and simply used wire links where the CM inductors are
>meant to go. Some PC supplies I've come across have even used standard
>ceramic/polyester capacitors in place of the Y and X2 rated safety
>capacitors.
>
>How do they get away with this ?
Read about my experience with a Deer 170W PSU masquerading as 400W.
http://groups-beta.google.com/group/aus.electronics/msg/1515813ff03788f0?hl=en
http://groups-beta.google.com/group/alt.comp.hardware.homebuilt/msg/e705e80f9c9611d1?hl=en
- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
.
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- From: Adam. Seychell
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