On Monday 26 January 2004 7:30 pm, Jakub Krajcovic wrote:
Hmmm, I think you will find the actual power used is not the important figure.
Power on peak will come in to it, but PC power supplies are expecting a sine wave they can pull large pulses of power from and inverters put out a current limited square wave, they do not work well together. Vastly oversizing may be OK, but I have not tried it.
David
I am a bit familiar with PC power supply construction, so IMHO this is hardly true.
No one PC UPS, I know gives sine wave on the output. Usually it's approximated only in very few steps. I thing the problem is RF noise, which must not exceed given limits, not the waves shape itself (but indeed, it depends on it).
I am sure it's possible to find power supply, which will work perfect even with square wave.
noro
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