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Re: understanding switching PS..

Posted by wlee on November 27, 2005 at 16:37:51:
hi Tweekeng,
Tks for the wonderful lead and your kind explaination! Yes I forgot the basic physics, I think in my Electro-magnetic wave class we did discuss about transmission effect up to wave propagartion in 2 parallel conductor... so too high a freq will lead to capacitive leak and radiation leak(yes?). Anyway, I really don't know enought about power transmission, perhaps teh current solution of high voltage/low current transmission from the power company is already the best solution, but may be in the house in most outlets there will be programmable output voltage and freq and most home appliance will be plug and play with out adaptors inside..??
Anyway, my interest is to try to build a lower freq converter, to convert our 110V/240V into 400V max 500ma with perhaps 500 c/s sine wave, as an experiment for the power supply of an OTL tubes amp, with smaller transformer...
Can this be done reasonably easily?

Tks and best rgds
William Lee