below 2%THD on power supply?
below 2%THD on power supply?
(OP)
Hi
Can somebody help me with selecting a powersupply that will provide less than 2%THD upto the 13th harmonic, and provide a constant voltage at 115V 60Hz. Any help will be greatly appreciated.
Thanks
Can somebody help me with selecting a powersupply that will provide less than 2%THD upto the 13th harmonic, and provide a constant voltage at 115V 60Hz. Any help will be greatly appreciated.
Thanks





RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
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RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
It depends on the nature of the test and the test spec.
RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
So, the only plausible purpose is someone writing BS test requirements, or the designer knows that without a "perfect" sinewave input, the efficiency will be REALLY crappy.
TTFN
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RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
I wonder if a nice, good quality gas-powered generator might provide a clean sin wave (?). But I know that some are horrid.
RE: below 2%THD on power supply?
Perhaps a sinewave inverter generator.
Keith Cress
kcress - http://www.flaminsystems.com
RE: below 2%THD on power supply?
RE: below 2%THD on power supply?
http://www.elgar.com/products/Products_AC.htm
Some of these are designed for product testing and testing to various CE standards. The TW series indicates 0.3% THD - but I didn't read all of the fine print.
RE: below 2%THD on power supply?
How about a function generator feeding a high power audio amplifier. Assuming your UUT is under a few hundred watts, you might be able to produce audiophile quality AC power. There are "70 volt" PA transformers available to help get the voltage into the right range if required.
But Comcokid has a good pointer.
RE: below 2%THD on power supply?
Seems like an odd approach, but it is what it is.
So, Comcokid's link leads to http
TTFN
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RE: below 2%THD on power supply?
Thanks
RE: below 2%THD on power supply?
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RE: below 2%THD on power supply?
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