Which UPS?

[Lennart Sorensen]

On Fri, Jun 08, 2012 at 11:04:50PM -0400, James Knott wrote:
> Molly Tournquist wrote:
> >Ewww, UPSes. That's just weird, putting batteries for DC devices at the AC stage. (Probably very reassuring over rigging up a DIY solution though.)
> 
> If you're so inclinded, you can get power supplies, at least for
> servers, that run on 48V DC or with some models, about 200V DC.  Of
> course, if you're handy with a soldering iron, you may be able to
> modify an AC power supply to run on high voltage DC.  Come to think
> of it, an AC supply should already run fine on a DC voltage of at
> least 150V, as the AC is just rectified, before being passed to the
> power oscillator.

I suppose it ought to work, although given how many now have power factor
correction, wouldn't that part get very confused?

-- 
Len Sorensen
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