[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

gEDA-user: ngspice subckt problems

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi all,

(this is actually a ngspice posting, so maybe it's off-topic?)

I'm just trying to use my spice model in ngspice.
LTspice/SwitcherCad from Linear Technology runs it like a charm.

The .cir file was created from my gschem schematics file by running
"gnetlist -g spice-sdb -o triode2.cir triode2.sch". getnetlist -g drc2
runs without any error message in the DRC file. It only prints some
warnings:
NOTE: Found pins without the 'pintype' attribute: X102:1 X102:2 X101:1
X102:3 X101:3 X101:2
But I don't believe that these have something to do with my problem.

If I run ngspice I get some error messages:
Too few parameters for subcircuit type "12at7" (instance: x102)
Too few parameters for subcircuit type "12at7" (instance: x101)

The 12at7 subcircuit model is a triode model by Norman Koren:
http://www.normankoren.com/Audio/Tubemodspice_article.html

It appears to me that the offending line in the spice file is
X102 vplate2 vg2 vcat 12AT7
The subcircuit in the model file begin with
.SUBCKT 12AT7 1 2 3  ; P G C

So I really don't know where's the problem :(

For the curious:

	PDF of the schematic
http://www.cl-projects.de/projects/sc/triode2.pdf
	.cir file working fine in LTSpice
http://www.cl-projects.de/projects/sc/triode2.cir

The background of why I now want to use ngspice is that I want to play
with the parameters a little bit to get out the maximum possible output
voltage swing. (This circuit is intended for scope tube deflection.)
=> Lots of simulation runs.
So one needs some sort of scriptable spice environment, for example a
UNIX command line program :)

What's wrong?

regards,
	Christoph
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFIpGRjWo2QgtqY4K8RAvWuAJ9PG1fKawvcTjNb1cTB63qiHcqsIACgikB8
l/SC50rXyXfurqFFZMPS5mQ=
=8DpZ
-----END PGP SIGNATURE-----


_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user