I run my BBB using a 4 dollar chinese power supply 5v 1amp and works
like a charm
i also run my design lab and whole house from solar power and only ever
have issues
when the transfer switch gets switched slowly and the power does a mild
brownout
then the power supply/BBB needs a quick plug/unplug and all is well

i would suspect you are having some grounding issues

just a guess


On 9/20/2013 2:49 PM, [email protected] wrote:
> The Beagle Bone doesn't work with some power supplies. It appears that
> it is not tolerant of inexpensive power supplies (such as the DLInk).
>  We are sure this is not due to lack of amperage as the Beagle Bone
> draws about 350 mA from our lab supply and the power supplies that
> fail are each rated at 1A and 2A.  I think it has to do with
> inexpensive switching supplies which are inherently noisy.
>
> Here's where it get's interesting...  We found a supply that works in
> the lab, but when installed in the field it the Beagle Bone's power
> light was on, but the heartbeat lights didn't blink and the unit would
> not operate.  We thought the supply went bad in the field, so we took
> the Beagle Bone to our local Radio Shack, tried a supply that worked
> in the store and then installed them both back in the field.  The new
> supply did not work in the field.
>
> The AC power in the field is supplied by Solar Power and I figured
> this might be the issue.  We plugged the new supply and Beagle Bone
> into a commercial (non solar) outlet and it worked fine.
>
> I have to think that the inverter on the Solar Power is injecting
> similar noise as the cheap switching supplies.
>
> Two questions...
>
> 1) Has anyone had issues with the Beagle Bone operating with cheap
> switching supplies or from Solar Power?
>
> 2) If so, any ideas on solutions to clean up the Solar Power source?
>
>
> Thanks in advance,
>
> Jeremy
>
>
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