[Elecraft] OT - Computer PS/UPS Question

Sun Jun 2 21:47:03 2002

No, computer power supplies do not like square waves but a UPS only puts
out square waves when on battery. I have never seen a computer supply 
damaged by occasional backup use. I have seen supplies harmed by people
trying to use the UPS as an inverter continuously though.

Larry East said:
> Hi -
>
> I recently acquired a UPS with a dead battery (standard 7.2AH 12V SLA)
> for  a couple of bucks at a "junk store". There is the following notice
> on the  bottom of the unit: "When operating from battery power, output
> is 120V 60Hz  rectangular wave form. User should take care to determine
> prior to use  wether this device is suitable ..." blah blah. I assume
> that this thing is  intended for use with computers, but before I
> spring for a new battery, I'd  like some input on whether or not
> desk-top computer power supplies are  picky about the input AC wave
> form. I'm looking for actual experience, not  "intelligent guesses"...
> :-)
>
> Tnx & 73,
> Larry
>
> PS: Yeah, I know -- if I spring for a new battery and the UPS blows my
> computer supply, I could still use the battery to power my K2 ... but
> I'd  rather not take an "experimental" approach!
>
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--
Geoffrey E. Sachse
341 Pinehurst St.
Lyndonville, VT 05851
[email protected]
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www.wormhole2.com