> > You are making this too complicated and needlessly expensive.

There is a significant need for the demystifying of the inductor
aspects of switch mode power supplies. High quality cores suited to
the frequencies and power levels being discussed here are readily
available in the US (and elsewhere) at very modest cost and the
winding of inductors that meet typical needs is relatively simple and
well within the abilities of almost anyone who can spell EE (and of a
few who can't). This is far far far easier than eg what is involved in
winding AF or mains power transformers of yore.

I imagine that Gargoyle has much to say on this (I'll let you Gargoyle
that for me) but, if not, we have enough experience amongst list
members as to be able to provide useful design guidelines and a few
standard recipes.


                            Russell McMahon
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