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Simulators >> Circuit Simulators >> parameter sweep / operating point
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Message started by ontheverge on Sep 29^th, 2010, 10:27pm

Title: parameter sweep / operating point
Post by ontheverge on Sep 29^th, 2010, 10:27pm

Hi,

I'm trying to sweep the width of a MOSFET and check the corresponding changes of a few node voltages and seems the command SWEEP can not be used with .op

My question is, is it possible to do so without any .DC .AC or transient analysis?

thanks,
Stephen

Title: Re: parameter sweep / operating point
Post by ontheverge on Sep 29^th, 2010, 10:33pm

Sorry forgot to mention, I was using Avant! star HSpice

Title: Re: parameter sweep / operating point
Post by ontheverge on Sep 30^th, 2010, 12:36pm

pancho_hideboo wrote on Sep 30^th, 2010, 5:08am:

Use ".alter" statement with ".op" statement.

.alter gives you only one set of new simulation data, while putting a bunch of .alter command will surely do, just wonder if easier ways exist

Title: Re: parameter sweep / operating point
Post by Geoffrey_Coram on Oct 4^th, 2010, 2:14pm

ontheverge wrote on Sep 30^th, 2010, 12:36pm:

.alter gives you only one set of new simulation data, while putting a bunch of .alter command will surely do, just wonder if easier ways exist

Why not use .dc to sweep the parameter??