Re: [Help-gnucap] model naming convetions: dash in model name

[Werner Hoch]

Hi Al,

On Sonntag, 4. November 2007, al davis wrote:
> On Saturday 03 November 2007, Werner Hoch wrote:
> > Is this a feature or a bug?
>
> If that model works with Spice, it's a bug.

ngspice-17 says:
------------
******
** ngspice-17 : Circuit level simulation program
** The U. C. Berkeley CAD Group
** Copyright 1985-1994, Regents of the University of California.
** Please submit bug-reports to: address@hidden
** Creation Date: Mon Oct  1 12:13:37 UTC 2007
******

Circuit: * gnetlist -g spice-sdb -o saturation_voltages.net 
saturation_voltages.sch

Error on line 10 : .model qbc817-25 npn(     is = 9.198e-14     nf = 
1.003     ise = 4.468e-16     ne = 1.65     bf = 338.8     ikf = 0.4913     
vaf = 107.9     nr = 1.002     isc = 5.109e-15     nc = 1.071     br = 
29.48     ikr = 0.193     var = 25     rb = 1     irb = 1000     rbm = 
1     re = 0.2126     rc = 0.143     xtb = 0     eg = 1.11     xti = 3     
cje = 3.825e-11     vje = 0.7004     mje = 0.364     tf = 5.229e-10     
xtf = 219.7     vtf = 3.502     itf = 7.257     ptf = 0     cjc = 
1.27e-11     vjc = 0.4431     mjc = 0.3983     xcjc = 0.4555     tr = 
7e-11     cjs = 0     vjs = 0.75     mjs = 0.333     fc = 0.905)
        Unknown model type -25 - ignored
Error on line 54 : q1 out in 0 qbc817-25
         unable to find definition of model -25 - default assumed
ngspice 55 ->  
-----------

Mmmhh, seems that ngspice is not very happy with that syntax.

> This one is fixed in the development version.

Great.

> > Where can I find the syntax rules for netlists and models?
>
> When reading a Spice file, it is supposed to be the same as
> Spice.  Things like this are usually artifacts of the parser.
> It can be fixed, but things like this often slip by.

Yes but knowing the syntax would still be nice.

Regards
Werner