Tolik said:
Tolik-
Thanks! Just passing on some good stuff (I hope). I would like to use this platform as the basis for a 2.5kW Sinewave output. The DC-DC Boost section looks stout enough (though I would replace the three 220mF 200V caps (there's room on the board for four) with four 330- or 390mF 200V caps, just to give it a little stiffer DC bus.
To do this, I would:
1) Re-clock the 60Hz oscillator to 60kHz, modulating it at 60Hz
2) Then filter it by a big L-C filter to remove the 60kHz content, thus leaving a nice clean 60Hz sinewave out.
I`ts eliminating 60Hz output inverter, with all additional heat dissipation,& additional noice.
Luka-
Yeah that's the idea. Once at work, I tore apart a Xantrex Prosine 1800 (when no-one was looking
) to see what was inside. Aside from a TON of control electronics, mcontrollers, support ICs, and other BIG components, I saw some pretty big L-C components used to recover the 60Hz component of the output signal, so I'm not in so much shock as you would expect, when dealing with a 60Hz low-pass filter rated for 2.5kW.
Steve
Yeah that's the idea. Once at work, I tore apart a Xantrex Prosine 1800 (when no-one was looking
) to see what was inside. Aside from a TON of control electronics, mcontrollers, support ICs, and other BIG components, I saw some pretty big L-C components used to recover the 60Hz component of the output signal, so I'm not in so much shock as you would expect, when dealing with a 60Hz low-pass filter rated for 2.5kW.Steve
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