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Hmm, sorry, that should be: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2524¶m=en025771 They have a number of circuits for battery management etc too. The sine wave _is_ generated using PWM, and an H-bridge driver. The application note is here http://ww1.microchip.com/downloads/en/AppNotes/30450c.pdf I've used H-bridge controllers to drive the output FETs before, which makes for a simple design and high efficiency. D On Thursday 11 December 2008 09:00:44 Tom Potts wrote: > On Thursday 11 December 2008 08:10, dave berkeley wrote: > > I presume that you've seen these Microchip application notes on building > > an inverter? > > > > http://www.microchip.comhttp://www.microchip.com/stellent/idcplg?IdcServi > >ce > > =SS_GET_PAGE&nodeId=2524¶m=en025771/stellent/idcplg?IdcService=SS_GET > >_PA GE&nodeId=2524¶m=en025771 > > That link only gets me to http://en.wikipedia.org/wiki/HTTP!!! > But I've tracked what I think you were meaning it to be > Thanks - however it looks as if they've gone about it a bit 'old style' - > too much clutter. Why use a digital processor to make a sine wave when you > can use it to make PWM+ ? > > > Does anyone know of a smart power supply? I need something with multiple > > (3 or more) DC outputs, with an intelligent controller that can also act > > a s a watchdog. Preferably with a serial or ethernet interface on it. > > Give me a couple of years.... > Tom te tom te tom |
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