Which UPS?

[Molly Tournquist]

Oh, what a surprise, the really nice things being server-only, accoustically horrifying things like 40mm fans getting in the way of niceness aside.

48DC sounds interesting, I've heard it's somewhat common with solar power systems.

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.

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