On 1/28/2013 5:32 AM, YES NOPE9 wrote:
> I have some surplus switching power supplies [SPS] ( all the same model )=
 that i have been messing with for fun.
> They output 20 VDC @ 3A.  I found a resistor on the PCB that I can change=
 out to get 24VDC.  The SPS crashes if more than 100 ma is drawn from it @ =
24 VDC.  As i reduce the voltage out , the SPS can support more output curr=
ent.  What should I look for that might be responsible for this behaviour ?=
  i would be delighted to get 24 VDC at 2A out of these units.  i can suppl=
y a photo if anyone is interested.
> Much Thanks
> Gus in Denver    [99guspuppet]
The first thing I would do is create a schematic from the supply. With=20
the schematic in hand it will be easy to see what needs to be changed.

Mark

--=20
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