PSN-L Email List Message

Subject: Re: Spice models
From: Brett Nordgren brett3nt@.............
Date: Mon, 24 Sep 2012 08:09:04 -0400


Randall,

Funny you should mention phase plane, as Dave and I were talking 
about that just last night.  I was getting ready to see what I could 
cook up in Spice and your reference could save me some work.

For some component values, the negative-resistance circuits will have 
conditionally stable feedback, which might permit oscilations to 
start following a transient overload or possibly on 
start-up.  Looking at transients in the phase plane may help us 
understand if the problem exists in a particular design and, ideally, 
how to prevent any oscillation tendencies.

Thanks for the links.

Brett


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