I don't know whether they make anything in that size range, but Liebert make 
some very good always-on units.

RR

----- Original Message ----- 
From: "Marcel Duchamp" <marcel.duchamp@sbcglobal.net>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Wednesday, January 02, 2008 2:45 PM
Subject: [EE] Source for no drop out UPS


>I have a one-off need for a light duty UPS, say about 100W-200W or so,
> that is constantly on.  Thus, it would have zero drop out going from
> loss of AC to battery backup.  The load will not tolerate more than
> maybe 1mS switchover time.
>
> This appears not to be specified in most data sheets I've seen so far.
> Does anyone have a suggestion of brands to look at for this feature?
>
> If I can't find one, I'll probably punt and get a gel-cell float
> charger, a gel-cell and an inverter.
>
> Thanks!
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