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pole-zero analysis with Spectre (Read 7560 times)

sutapanaki Community Member Offline Posts: 41	pole-zero analysis with Spectre Jun 03^rd, 2004, 7:55pm Hi, I was wondering if it's possible to perform a pole-zero analysis using Spectre. I looked at the help for Cadence IC5, couldn't find anything about it. If someone can also answer the same question about Pspice, it'd great. Thanks
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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: pole-zero analysis with Spectre Reply #1 - Jun 3^rd, 2004, 9:38pm This was added in the IC5033 release (released last October). It is called "pz" in spectre and on the ADE choose analysis form. Andrew.
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Eugene

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Re: pole-zero analysis with Spectre
Reply #2 - Jun 8^th, 2004, 9:58am

Does pz analysis work with Monte Carlo analysis? Power systems and motor drives often have multiple interacting feedback loops which make classical gain/phase margins hard to apply. With a Monte Carlo pz analysis one could plot the clusters of closed loop poles and assess relative stability by measuring proximity to the imaginary axis.

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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: pole-zero analysis with Spectre Reply #3 - Jun 8^th, 2004, 2:28pm I think it should do - but I've not tried it. It does work with sweeps, so should really work with monte-carlo. Not sure if I'll have a moment to try this or not in the next week or so... Andrew.
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