> Is it possible to raise the switching frequency? That's huge!

I am not involved in the design, just in the hunt. As far as I
understood the inductor is to smooth the current into the capacitor
before the switcher itself. This current is itself switched. Not
chopped, just switched on/off at certain moments of the sine.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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