Re: [Help-gnucap] model and gnucap

[al davis]

On Friday 01 October 2004 11:07 am, Hector Miuler Malpica 
Gallegos wrote:
> ----------------------------------------------
> * GNUCAP - NETLIST
> .options OUT=120
> *----------------------------------------------
> R_Rc1 1 3 4k
> V_Vc1 3 0 dc 10
> V_Vb1 2 0 dc 0.5
> Q_Q1 1 4 0 NPN
> R_Rb1 2 4 1k
> *----------------------------------------------
> .print tran  v(1)
> .tran 0 0.005 5e-05
> .print op v(nodes)
> .op
> .end
>
>
> error:
> Q_Q1: can't find model: NPN
>
>
> mmm....   , how I can add models?  I must compile?

No.  Just add a ".model" statement to your file.  You need to 
supply the parameters.  The manual isn't clear on this.  All 
semiconductor devices require a ".model" statement in addition 
to the device (Q...) line.  One ".model" line can be used by as 
many instances as you want,

In the netlist section (before any action commands) add the 
line:

.model NPN NPN

This will take all the default parameters.  You can set the 
parameters,  See the manual for a list of the parameters you 
can set.  It is Spice compatible.