[Arm-netbook] AC to DC power adapter with multiple outputs

[Philip Hands]

Benson Mitchell <benson.mitchell+arm-netbook at gmail.com> writes:

> On Sep 29, 2013 9:50 AM, "Dr. David Alan Gilbert" <dave at treblig.org> wrote:
>> Have you tried a normal PC power supply; I think there is a way to fudge
>> them to believe a motherboard is connected.
> That's the ticket.
>
> But there is one gotcha with this -- some PSUs won't operate or don't
> operate well with no or very low load (they need like 1-5% of rated
> current, minimum). So check the voltages with no load, if all seems well,
> good! otherwise, throw a 12V light bulb on the output and that should make
> it behave.

Also, RepRappers have found that one often needs to put load on the 5v
circuit to get reliable 12v:

  http://reprap.org/wiki/PCPowerSupply

Cheers, Phil.
-- 
|)|  Philip Hands [+44 (0)20 8530 9560]    http://www.hands.com/
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