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[Amps] PS Theory (cap int res)

To: "Ian White, G3SEK" <g3sek@ifwtech.co.uk>, <amps@contesting.com>
Subject: [Amps] PS Theory (cap int res)
From: "kenw2dtc" <kenw2dtc@comcast.net>
Date: Wed, 3 Sep 2003 12:40:06 -0400
List-post: <mailto:amps@contesting.com>
I have a bank of these computer grade caps in series:  2400 mfd at 450 vdc,
2.5 inches in diameter and 4 inches long.  It looks like the PSU Designer
program shows noticeable ripple if the internal resistance of the filter cap
is too high.  How do I determine the internal resistance of my computer
grade caps?  Is there a formula, or can they be measured with regular shack
tools, or is there a ball park figure for computer grade caps, or perhaps an
old wives' tale.
73,
Ken W2DTC

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