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From: John Popelish
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X-Mailer: Mozilla 4.7 [en] (Win98; U)
Subject: Re: what is Kelvin trace pair??
Date: Tue, 24 Dec 2002 04:08:23 GMT
NNTP-Posting-Date: Mon, 23 Dec 2002 23:08:23 EST
> Recently I studied the PWM IC of Fairchild FAN5093.
> And there was a term called "Kelvin Trace Pair"!!
> Anyone could please explain this ??
> Thank you for your reply.
> Best Regards
Kelvin connections to current shunt resistors implies 4 connections.
One pair carries the current being measured, and a second pair connect
the voltage measuring system to the resistor. The voltage measuring
pair reject noise from surrounding circuits best if they are close and
parallel (minimum area between them) and the voltage is measured with
a subtractor that ignores any common mode voltage but responds to the
difference voltage, only. Do a google search for 'kelvin connection'.
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