Re: gEDA-user: ngspice and parts

[Svenn Are Bjerkem <svenn@xxxxxxxxxx>]

On Thursday 07 July 2005 16:02, Stuart Brorson wrote:
> Generating a SPICE model or .subckt from the datasheet is
> difficult, and best left to experts.  It requires understanding
> enough about the guts of SPICE to be able to know what all the
> parameters mean.

Not to forget that many of the SPICE models are macro models even if 
there is a built in version of the same element. (In the case of a 
simple diode.) And for the LM317 you will have to know a lot about 
the internal in order to write the macro model.

Luckily many semiconductor manufacturer offer models. That they are 
not distributed with geda or ngspice may have something to do with 
their licencing.
-- 
Svenn