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Looking for a 20A, 500W AC power supply
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aagw:

--- Quote from: j_omega on July 15, 2022, 09:36:53 pm ---
I did some more looking at the pro-audio market and found some nice offerings from Crown, QSC, Yamaha, and Behringer. For this purpose, does the class of amplifier matter (AB vs D)? I can find some name-brand high-power AB amps on eBay for great prices.

--- End quote ---

If you choose a class-D amplifier, you will most likely have some switching ripple on your output signal.
It could be annoying when measuring with a scope for instance.
MikeP:

--- Quote from: Martin72 on July 15, 2022, 09:31:06 pm ---The third is somekind of special... ;)
It uses three "High-End" PA-Amplifiers with 2.5KW each, driven by a 3-Phase sine with free adjustable frequency, delivers up to 135Vrms/phase on 4 Khz...

--- End quote ---

 What is the signal source for amplifiers?
 I'm mostly interested in a three-phase PWM generator. I will be grateful for any help.
Martin72:
Hi,

Source is a selfbuild three phase generator and "of course" I can“t tell anything about it.
But you can try to get a cheap VFD and do some reverse engineering on it, most VFD got three phase outputs...
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