> If I take a standard 120V 60Hz power source, then
> feed it through a
> full wave bridge rectifier I get out 120VDC
> oscillating, right? So far
> so good...
> 
> Now, if I put a filter cap across that signal I can
> get a steady
> voltage...but what is that voltage? Is it 170V
> (120*1.414)?
> 
  A bit confused with your explanation. Could you draw
it?
  
> How do you calculate the value and rating of that
> capacitor given the
> maximum current draw? I can't seem to remember any
> of my capacitor
> formulae (or even if I knew one that would have
> helped in this
> situation).
  Not sure again..
  But this formulae is for caps and the charge it can
hold.

  Q = V*C  ,Q-current charge,C is Farads.

John

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