What is a SMPS?
If you can answer this perhaps you would understand why
"We all went off on the SMPS tangent"
  PC

> Only big problem I've seen for doing this circuit so far, is 
> being able
> to generate a 48khz+ PWM using a PIC with fine enough resolution (I'd
> prefer 10 bit resolution, especially if you want to do the universal
> input).  Any simple/easy/cheap way to do that trick with a PIC?  Is
> there a SMPS control chip circuit that could be modified or tricked to
> do this (and could be controlled via a PIC)?
> 
> QUESTION ASKED!  NEVER ANSWERED!  We all went off on the SMPS tangent 
> instead.
> 

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