i m using h-bridge part with some mods with good result, simple and less expensive compare to using 2 x ir2xxx , if u get spikes , use some dc bus and phase snubber
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.
This is the best idea.
I`ts eliminating 60Hz output inverter, with all additional heat dissipation,& additional noice.You can to be sure about it !
Hi
Don't you think, not for a second that this is easy, this will require big LC filter and pretty good one...ok sure there won't be much trouble to stop 60kHz, but depends how much you will let it be on output...But it is still good idea anyway
Don't you think, not for a second that this is easy, this will require big LC filter and pretty good one...ok sure there won't be much trouble to stop 60kHz, but depends how much you will let it be on output...But it is still good idea anyway
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
Hi Steve
I know you wouldn't be, you probaly seen a lot by now...i'm just saying it wouldn't be small anymore like for amps, of filters on smps's...but still I see it as one big amp playiing 60Hz...hmm maybe you could make it play music to 😀
I know you wouldn't be, you probaly seen a lot by now...i'm just saying it wouldn't be small anymore like for amps, of filters on smps's...but still I see it as one big amp playiing 60Hz...hmm maybe you could make it play music to 😀
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