[geeks] New Intel Atom-based barebones system

Sandwich Maker adh at an.bradford.ma.us
Wed Aug 20 09:00:59 CDT 2008


" From: Jonathan Groll <lists at groll.co.za>
" 
" > []
" 
" I *think* my weird method of measurement measures VA, but that
" assumption may be false! Luckily, no one on list has commented on
" it. (I measured DC current on my multimeter since it couldn't measure
" AC, and had to use a bridge rectifier)
" 
" > []
" 
" What sort of power factor (ball park) do computer power supplies have?

they're all smps these days, so i'd expect
1. the first component after the power plug and protection components
   is probably a bridge rectifier
2. probably no big filter caps
3. the pf is probably close to 1.  i'm not sure they could claim the
   high efficiencies at all power levels they do with a low pf

your measurement scheme could be quite accurate.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought



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