On Wed, Feb 15, 2006 at 02:25:04PM -0500, David VanHorn wrote:
> >
> >
> > I did properly load the other voltage lines BTW, measured a 1A draw on
> > the 12V and 0.1A on -12 and -5
> 
> 
> Something to know about multi-output switchers.
> There is one output that is used to do the regulation. All the others are
> either unregulated, or regulated with linear regs.  A high load on the
> regulated output causes extra energy to be delivered to all the outputs.
> They usually make some assumptions about other loads being of some
> proportion to the main load.

Oh! Well that is definetely good to know... I was carefully watching the
voltage on the 5V line, and it, until the switchers died, was within
spec, but I wasn't watching the other lines.

Last time I ever use PC power supplies... Yuck.


That said, is there anywhere where I can get cheap single output
switchers then? Like a 5V 50A power supply all nicely boxed up... A
place not named digikey which sells nice medical ones for about, oh,
$400 or more...

-- 
pete@petertodd.ca http://www.petertodd.ca
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