From: firstname.lastname@example.org (The little lost angel)
Subject: Re: How to make/solder a circuit fast?
Date: Sun, 15 Sep 2002 16:56:22 GMT
Organization: Yes please, I'm quite disorganized & lost at the moment
References: <email@example.com> <firstname.lastname@example.org> <email@example.com>
NNTP-Posting-Date: Sun, 15 Sep 2002 16:54:56 +0000 (UTC)
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On 15 Sep 2002 07:36:38 -0700, firstname.lastname@example.org (N. Thornton) wrote:
>OK, I understand your temp figure now. But pushing a little reg to its
>specification limits in a project like this is not an issue to be
>honest. As someone rightly said, when youre doing home experimenting
>you can push things further than a comercial house would.
Hee, since it's the lifeblood of the entire PC systems, I'd like to do
things right. At least if the PSU blows, I know it wasn't my fault and
I did do my best to make sure what I made would had survived under
those operating conditions.
>There must be ways to connect it that would be safe and secure. It'd
If it was me doing just one piece, I could conceivably solder
the input lead to the mess of the +12V output lead. But I'm just
making the board with connectors, them guys have the joy of opening up
their own PSU, sticking their chosen LED colours into the widget and
sticknig the entire widget into the PSU.
I don't wanna get blamed when one of them takes out the
capacitors and mosfet with a badly wielded solder iron.
>make life far easier. BTW why is the 12v out supply any more
>vulnerable than the fan supply? If anything I would think it is better
The fan supply, at least for the couple I've opened up, is on
a separate PCB that's connected the main PCB via a regulator
(thermal?). The IC, it looks like a TO-220 but much smaller sticks two
ends into the main PCB, is secured to the small PCB.
The small PCB has two small 2-pin socket for the fans. So it's
easier to simply detach one of the fan from the socket, attach the
widget, attach the fan to the widget in a parallel connection.
If anything goes wrong and they need to RMA the PSU,
everything can be restored by removing the widget and putting the fan
back onto the PCB.