http://www.gnucap.com/dokuwiki/ 2026-04-16T08:38:16-05:00 FeedCreator 1.7.2-ppt DokuWiki 2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:basic?rev=1449869995&do=diff

Basic passive devices Gnucap includes the usual basic Spice devices, and some others that are found in commercial versions of Spice. All of them are designed as plugins, but are included in the base distribution and loaded by default. All of them can be extended by simple behavioral expressions, in some cases beyond what is available in any Spice.

2009-05-11T00:10:38-05:00 2009-05-11T00:10:38-05:00 2009-05-11T00:10:38-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:capacitor?rev=1242018638&do=diff

Syntax: instance Spice format Cxxxxxxx n+ n– value Cxxxxxxx n+ n– expression Cxxxxxxx n+ n– value {IC=initial-voltage} Cxxxxxxx n+ n– model {L=length} {W=width} {TEMP=temperature} {IC=initial-voltage} Spectre format Cxxxxxxx n+ n– capacitor C=value Cxxxxxxx n+ n– capacitor expression Cxxxxxxx n+ n– capacitor C=value {IC=initial-voltage} Cxxxxxxx n+ n– model {L=length} {W=width} {TEMP=temperature} {IC=initial-voltage} Verilog format capacitor #(.c(value)) Cxxxxxxx n+ n– value Cxxxxxxx n+ n– exp…

2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:inductor?rev=1449869995&do=diff

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2009-07-12T01:56:38-05:00 2009-07-12T01:56:38-05:00 2009-07-12T01:56:38-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:lossless_transmission_line?rev=1247381798&do=diff

Syntax Txxxxxxx (n1+ n1- n2+ n2-) args Purpose Lossless transmission line. Comments n1+ and n1- are the nodes at one end. n2+ and n2- are the nodes at the other end. The parameters TD, Freq, and NL determine the length of the line. Either {\tt TD} or {\tt Freq} and {\tt NL} must be specified. If only {\tt Freq} is specified, {\tt NL} is assumed to be .25. The other will be calculated based on the one you specify. If you specify too many parameters, {\tt Freq} and {\tt NL} dominate, and …

2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:mutual_inductance?rev=1449869995&do=diff

Syntax Kxxxxxxx Lyyyyyyy Lzzzzzzz value Purpose Coupled mutual inductance. Comments K couples two inductors. The value is the coefficient of coupling. Using the dot convention, place a dot on the first node of each inductor. The coefficient of coupling is given by K = m[i][j] / sqrt(L[i] L[j]). K is always positive and less than 1.

2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 2015-12-11T15:39:55-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:other?rev=1449869995&do=diff

* mutual inductance * switches * Lossless transmission line

2023-12-04T00:40:53-05:00 2023-12-04T00:40:53-05:00 2023-12-04T00:40:53-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:semi?rev=1701672053&do=diff

Gnucap supports both native and industry standard semiconductor devices. Native models are optimized models compiled with the “gnucap-modelgen” model compiler. A BJT, diode, and several MOSFET models are available as native models. C-models designed for Spice can also be used as plugins. Several variants of spice models are supported, including 3e, 3f, NGspice, and Jspice. Usually, the models can be used without any modifications.

2009-07-12T01:54:29-05:00 2009-07-12T01:54:29-05:00 2009-07-12T01:54:29-05:00 http://www.gnucap.com/dokuwiki/doku.php/gnucap:manual:devices:switches?rev=1247381669&do=diff

Syntax Voltage controlled switch Device: Sxxxxxxx (n+ n- nc+ nc-) modelname ic Model (required): .model modelname SW args Current controlled switch Device: Wxxxxxxx (n+ n- ce) modelname ic Model (required): .model modelname CSW args Purpose Voltage or current controlled switch.