194 lines
8.3 KiB
C
194 lines
8.3 KiB
C
/**** BSIM4.0.0, Released by Weidong Liu 3/24/2000 ****/
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/**********
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* Copyright 2000 Regents of the University of California. All rights reserved.
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* File: b4cvtest.c of BSIM4.0.0.
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* Authors: Weidong Liu, Kanyu M. Cao, Xiaodong Jin, Chenming Hu.
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* Project Director: Prof. Chenming Hu.
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**********/
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#include "ngspice.h"
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#include <stdio.h>
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#include <math.h>
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#include "cktdefs.h"
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#include "bsim4def.h"
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#include "trandefs.h"
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#include "const.h"
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#include "devdefs.h"
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#include "sperror.h"
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int
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BSIM4convTest(inModel,ckt)
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GENmodel *inModel;
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register CKTcircuit *ckt;
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{
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register BSIM4model *model = (BSIM4model*)inModel;
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register BSIM4instance *here;
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double delvbd, delvbs, delvds, delvgd, delvgs;
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double delvdbd, delvsbs;
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double delvbd_jct, delvbs_jct;
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double vds, vgs, vgd, vgdo, vbs, vbd;
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double vdbd, vdbs, vsbs;
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double cbhat, cdhat, Idtot, Ibtot;
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double vses, vdes, vdedo, delvses, delvded, delvdes;
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double Isestot, cseshat, Idedtot, cdedhat;
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double Igstot, cgshat, Igdtot, cgdhat, Igbtot, cgbhat;
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double tol0, tol1, tol2, tol3, tol4, tol5, tol6;
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for (; model != NULL; model = model->BSIM4nextModel)
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{ for (here = model->BSIM4instances; here != NULL ;
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here=here->BSIM4nextInstance)
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{
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if (here->BSIM4owner != ARCHme) continue;
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vds = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4dNodePrime)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vgs = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4gNodePrime)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vbs = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4bNodePrime)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vdbs = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4dbNode)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vsbs = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4sbNode)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vses = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4sNode)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vdes = model->BSIM4type
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* (*(ckt->CKTrhsOld + here->BSIM4dNode)
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- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
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vgdo = *(ckt->CKTstate0 + here->BSIM4vgs)
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- *(ckt->CKTstate0 + here->BSIM4vds);
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vbd = vbs - vds;
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vdbd = vdbs - vds;
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vgd = vgs - vds;
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delvbd = vbd - *(ckt->CKTstate0 + here->BSIM4vbd);
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delvdbd = vdbd - *(ckt->CKTstate0 + here->BSIM4vdbd);
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delvgd = vgd - vgdo;
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delvds = vds - *(ckt->CKTstate0 + here->BSIM4vds);
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delvgs = vgs - *(ckt->CKTstate0 + here->BSIM4vgs);
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delvbs = vbs - *(ckt->CKTstate0 + here->BSIM4vbs);
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delvsbs = vsbs - *(ckt->CKTstate0 + here->BSIM4vsbs);
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delvses = vses - (*(ckt->CKTstate0 + here->BSIM4vses));
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vdedo = *(ckt->CKTstate0 + here->BSIM4vdes)
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- *(ckt->CKTstate0 + here->BSIM4vds);
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delvdes = vdes - *(ckt->CKTstate0 + here->BSIM4vdes);
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delvded = vdes - vds - vdedo;
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delvbd_jct = (!here->BSIM4rbodyMod) ? delvbd : delvdbd;
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delvbs_jct = (!here->BSIM4rbodyMod) ? delvbs : delvsbs;
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if (here->BSIM4mode >= 0)
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{ Idtot = here->BSIM4cd + here->BSIM4csub - here->BSIM4cbd
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+ here->BSIM4Igidl;
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cdhat = Idtot - here->BSIM4gbd * delvbd_jct
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+ (here->BSIM4gmbs + here->BSIM4gbbs + here->BSIM4ggidlb) * delvbs
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+ (here->BSIM4gm + here->BSIM4gbgs + here->BSIM4ggidlg) * delvgs
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+ (here->BSIM4gds + here->BSIM4gbds + here->BSIM4ggidld) * delvds;
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Igstot = here->BSIM4Igs + here->BSIM4Igcs;
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cgshat = Igstot + (here->BSIM4gIgsg + here->BSIM4gIgcsg) * delvgs
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+ here->BSIM4gIgcsd * delvds + here->BSIM4gIgcsb * delvbs;
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Igdtot = here->BSIM4Igd + here->BSIM4Igcd;
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cgdhat = Igdtot + here->BSIM4gIgdg * delvgd + here->BSIM4gIgcdg * delvgs
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+ here->BSIM4gIgcdd * delvds + here->BSIM4gIgcdb * delvbs;
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Igbtot = here->BSIM4Igb;
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cgbhat = here->BSIM4Igb + here->BSIM4gIgbg * delvgs + here->BSIM4gIgbd
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* delvds + here->BSIM4gIgbb * delvbs;
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}
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else
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{ Idtot = here->BSIM4cd + here->BSIM4cbd;
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cdhat = Idtot + here->BSIM4gbd * delvbd_jct + here->BSIM4gmbs
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* delvbd + here->BSIM4gm * delvgd
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- here->BSIM4gds * delvds;
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Igstot = here->BSIM4Igs + here->BSIM4Igcd;
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cgshat = Igstot + here->BSIM4gIgsg * delvgs + here->BSIM4gIgcdg * delvgd
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- here->BSIM4gIgcdd * delvds + here->BSIM4gIgcdb * delvbd;
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Igdtot = here->BSIM4Igd + here->BSIM4Igcs;
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cgdhat = Igdtot + (here->BSIM4gIgdg + here->BSIM4gIgcsg) * delvgd
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- here->BSIM4gIgcsd * delvds + here->BSIM4gIgcsb * delvbd;
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Igbtot = here->BSIM4Igb;
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cgbhat = here->BSIM4Igb + here->BSIM4gIgbg * delvgd - here->BSIM4gIgbd
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* delvds + here->BSIM4gIgbb * delvbd;
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}
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Isestot = here->BSIM4gstot * (*(ckt->CKTstate0 + here->BSIM4vses));
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cseshat = Isestot + here->BSIM4gstot * delvses
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+ here->BSIM4gstotd * delvds + here->BSIM4gstotg * delvgs
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+ here->BSIM4gstotb * delvbs;
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Idedtot = here->BSIM4gdtot * vdedo;
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cdedhat = Idedtot + here->BSIM4gdtot * delvded
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+ here->BSIM4gdtotd * delvds + here->BSIM4gdtotg * delvgs
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+ here->BSIM4gdtotb * delvbs;
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/*
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* Check convergence
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*/
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if ((here->BSIM4off == 0) || (!(ckt->CKTmode & MODEINITFIX)))
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{ tol0 = ckt->CKTreltol * MAX(fabs(cdhat), fabs(Idtot))
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+ ckt->CKTabstol;
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tol1 = ckt->CKTreltol * MAX(fabs(cseshat), fabs(Isestot))
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+ ckt->CKTabstol;
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tol2 = ckt->CKTreltol * MAX(fabs(cdedhat), fabs(Idedtot))
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+ ckt->CKTabstol;
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tol3 = ckt->CKTreltol * MAX(fabs(cgshat), fabs(Igstot))
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+ ckt->CKTabstol;
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tol4 = ckt->CKTreltol * MAX(fabs(cgdhat), fabs(Igdtot))
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+ ckt->CKTabstol;
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tol5 = ckt->CKTreltol * MAX(fabs(cgbhat), fabs(Igbtot))
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+ ckt->CKTabstol;
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if ((fabs(cdhat - Idtot) >= tol0) || (fabs(cseshat - Isestot) >= tol1)
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|| (fabs(cdedhat - Idedtot) >= tol2))
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{ ckt->CKTnoncon++;
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return(OK);
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}
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if ((fabs(cgshat - Igstot) >= tol3) || (fabs(cgdhat - Igdtot) >= tol4)
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|| (fabs(cgbhat - Igbtot) >= tol5))
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{ ckt->CKTnoncon++;
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return(OK);
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}
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Ibtot = here->BSIM4cbs + here->BSIM4cbd
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- here->BSIM4Igidl - here->BSIM4csub;
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if (here->BSIM4mode >= 0)
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{ cbhat = Ibtot + here->BSIM4gbd * delvbd_jct
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+ here->BSIM4gbs * delvbs_jct - (here->BSIM4gbbs + here->BSIM4ggidlb)
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* delvbs - (here->BSIM4gbgs + here->BSIM4ggidlg) * delvgs
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- (here->BSIM4gbds + here->BSIM4ggidld) * delvds;
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}
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else
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{ cbhat = Ibtot + here->BSIM4gbs * delvbs_jct + here->BSIM4gbd
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* delvbd_jct - (here->BSIM4gbbs + here->BSIM4ggidlb) * delvbd
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- (here->BSIM4gbgs + here->BSIM4ggidlg) * delvgd
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+ (here->BSIM4gbds + here->BSIM4ggidld) * delvds;
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}
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tol6 = ckt->CKTreltol * MAX(fabs(cbhat),
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fabs(Ibtot)) + ckt->CKTabstol;
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if (fabs(cbhat - Ibtot) > tol6)
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{ ckt->CKTnoncon++;
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return(OK);
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}
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}
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}
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}
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return(OK);
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}
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