Re: low power server question

["simon.wellborne" <simon.wellborne@xxxxxxxxx>]

http://www.mini-box.com/DC-DC

for some relatively inexpensive DC-DC power ATX supplies that might help
you.


--- In ukha_d@xxxxxxx, Jim Noble <yahoo-groups@...> wrote:
>
> On 12/02/2010 07:37, Robin Edwards wrote:
> > 1: Some sort of UPS or battery device is needed that gets charged
and
> > sits between the x10 module and the server, correct?  What type
of
> > device would do the job?
> >
>
> You could use a UPS, but I doubt it would achieve what you're aiming
for
> though - I'd be surprised if a UPS didn't add at least 20W to the
load,
> and there would be inefficiencies in the power conversion and storage.
> You'd probably end up consuming >3x the power for 1/3 of the time.
>
> If you used a DC power supply for the server, you could feed it from a
> large battery though. For a 20W load running for 16 hours, you'd need
> 320Wh of battery capacity, which is only about 30Ah (absolute
minimum).
> There would still be /some/ inefficiencies though...
>
> It's a shame there are no ATX power supplies with a UPS function (ie
> battery connection on the DC side) readily available...
>
> Jim
>




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