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cw multiplier cap questions.

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LAN_403

northern_lightning

Wed Mar 19 2008, 02:23AM

Registered Member #1348 Joined: Sun Feb 24 2008, 01:48AM
Location: Michigan's Upper Peninsula
Posts: 22

The ripple voltage, in the case where all stage capacitances (C1 through C(2*n)) may be calculated from:
Eripple = Iload/(f * C)*n*(n+1)/2

the way this formula is written is a bit confusing.

should it be read as: Eripple = Iload/[(f*C)*n*(n+1)/2] ? or like this: Eripple = [Iload/(f*C)*n*(n+1)]/2?

i plugged some numbers into both and the latter makes more sense; the ripple doesn't increase quite as rapidly (in the second one) as increasingly smaller capacitors are chosen.

just want to make sure i'm using it correctly. thanks

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