On Wednesday 06 May 2009, vsrk sarma wrote: > I am just starting to use gnucap for circuit simulation. > Can diode model generated in gnucap b e used for PIN diodes? > I need to find a equivalent an obsolete & unavailable silicon > pin diode used in protection/attenuation front end of > amplifier. Target diode manufacturer provides following spice > model parameters: Is, Rs, N, Cjo, Cp, M, EG, Vj, BV, IBV. (In > gnucap Cp, BV, IBV are not used).......
sorry .. I missed this .. If the native diode model doesn't have what you need, perhaps one of the plugin diode models will. In particular, take a look at the diode model from NGspice. It's in the tarball: http://gnucap.org/devel/gnucap-2009-02-02-models-ngspice17.tar.gz The model from spice3f5 is also available, in: http://gnucap.org/devel/gnucap-2009-02-02-models-spice3f5.tar.gz > ......Are these sufficient to > simulate protection/attenuation behavior with pulsed VHF > input? I don't know. The NGspice model appears to have more in it, so it would be more likely to have enhancements like this. > Do the simulation take care of resistance & > capacitance variation due to space charge accumulation in i > layer? I think so. They all model nonlinear capacitance. _______________________________________________ Help-gnucap mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnucap
