[SI-LIST] Re: Question regarding current loop, clarification

I believe we needed one more assumption.
Assume that the point on the waveform we are interested in has reached the 
far end of the trace(s) (i.e. at the receiver).

Sorry

Doug



At 12:36 PM 4/24/2006, Doug Brooks wrote:
>Assume we have a differential pair, driven in odd mode with no timing offsets.
>Assume the pair is terminated with a single resistor between the two traces.
>Assume the signal is purely trapezoidal.
>Assume there is an underlying plane (but assume what you want about the
>spacing to the plane.)
>Assume what you want about the spacing between the traces.
>*If* current flows in a closed loop and *if* current is constant everywhere
>in the loop, and *if* current is a point (as opposed to an average) concept
>in time....
>
>What is the definition of the current loop at the instant when the current
>wave form is at the middle of the constant part of the wave form (between
>the rise and fall times)?
>
>Doug Brooks
>
>____________________________________________________________________________-
>Check out UltraCAD's differential impedance and skin effect calculators at
>http://www.ultracad.com
>
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____________________________________________________________________________-
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http://www.ultracad.com 

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