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About pole & zero simulation

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tavakoli

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Iss there any circuit simulator how can simulate poles and zeros of a circuit and give their values???
 

Hspice pole-zero analisys.
 

pspice have this function,
but if you simulate it for switchmode power supply,I think power456 is best tool.
 

can u tell me how we could simulate them in orcad pspice
thanx
 

Cadence IC5 and Mentor Eldo also have this option.
 

Are you sure Cadence IC5 has this analysis? Couple of weeks ago I looked for this feature in IC5 but didn't find that. Moreover I found information that Cadence is not going to insert this feature in next few releases.
 

Yes, starting from IC5.033 there is pole-zero analysis - if you go to analyses section in ADE, you will see it as pz.
 

It can be simulated with the help of sim as
.PZ output input
e.g
.pz Vout VID
.ac dec 10 1hz 1G
its will print the poles/zeros at different frequencies for the node Vout
 

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