Re: [ng-spice] pb with spice3f4 and ngspice


To ng-spice@ieee.ing.uniroma1.it
From Al Davis <aldavis@ieee.org>
Date Sun, 15 Apr 2001 09:06:54 -0700
Delivered-To mailing list ng-spice@ieee.ing.uniroma1.it
In-Reply-To <Pine.LNX.3.96.1010415154727.8696A-100000@ieee.ing.uniroma1.it >
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Reply-To ng-spice@ieee.ing.uniroma1.it

On Sun, 15 Apr 2001, pnenzi@ieee.ing.uniroma1.it wrote:
> On Thu, 15 Mar 2001, routoure Jean-Marc wrote:
> > Hi,
> >
> > I find a little bug in ngspice ans spice3f4.
>
> Correct, I have checked that on the latest CVS code. The bug seems
> to be related with the way that spice uses for deriving a pmos
> model from an nmos: it multiply some values by MOS1type which
> means: -1 for pmos and 1 for nmos. May be that the "show all"
> command do not show vds and vgs but MOS1type*vgs and MOS1type*vds.
> This can be the cause of the error.

"It's not a bug.  It's a feature!"

It shows the values of the internal model, after coercing into a 
"standard" form.  This is the way a modeler would want to see it.

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