Re: Where are all the ESR meters?
- From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 23 Jul 2007 06:55:10 -0700
On Mon, 23 Jul 2007 05:50:10 -0700, Winfield <winfieldhill@xxxxxxxxx>
wrote:
A better idea, I think, is to use a proper higher-impedance
current source, and drive with a 100kHz sine wave, thereby
greatly reducing the ESL problem, which can otherwise be a
killer for the 1 to 30 milliohm region. Using a sine wave
also means the measured ESR can be compared with laboratory
meter readings. Otherwise, how would one compare sets of
square-wave readings with accurate lab instrument readings?
Synchronous detector?
John
.
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