phase converters for big iron
pkoning at equallogic.com
Thu Apr 28 19:02:56 CDT 2005
>>>>> "Eric" == Eric Smith <eric at brouhaha.com> writes:
Eric> Jim wrote:
>> If they are switcher power supplies, they tend not to react very
>> nicely to having a solid state inverter feed them.
Eric> May depend on the switcher. Many of them just rectify the
Eric> input, so they don't really care what the input frequency or
Eric> waveform is, so long as it's not too fast for the rectifier.
Eric> So many 50/60 Hz switchers work fine on DC, 400 Hz, "modified
Eric> sine wave" 50/60 Hz, or even square wave 50/60 Hz.
Eric> But the ones that support exactly two voltage ranges (and
Eric> nothing in the middle) apparently use a voltage doubler, which
Eric> won't work on DC, and I don't know how it will react to higher
Eric> frequencies or strange waveforms.
Doublers won't work with DC, indeed. But they should work fine on
the other waveforms you mentioned.
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