Thread: UPS question
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Old October 14, 2012, 11:59 AM
NyteOwl's Avatar
NyteOwl NyteOwl is offline
Join Date: Aug 2008
Location: Nova Scotia
Posts: 890

Well, I put my APC UPS on an oscilloscope and the output is a sine wave, not a square wave - and it didn't cost close to $1000. I do have a cheaper model and even it is a stepped sinusoidal approximation rather than a simple square wave. YMMV. And most electric motors do not like square wave signals. Square wave is 100% duty cycle with generally results in overheating motor windings
Obsolescence is just a lack of imagination.

Last edited by NyteOwl; October 14, 2012 at 12:05 PM. Reason: Fixed typos
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