ngspice/src/spicelib/devices/dio/dioload.c

866 lines
40 KiB
C

/**********
Copyright 1990 Regents of the University of California. All rights reserved.
Author: 1985 Thomas L. Quarles
Modified: 2000 AlansFixes
Modified by Paolo Nenzi 2003, Dietmar Warning 2012 and Arpad Buermen 2025
**********/
#include "ngspice/ngspice.h"
#include "ngspice/devdefs.h"
#include "ngspice/cktdefs.h"
#include "diodefs.h"
#include "ngspice/const.h"
#include "ngspice/trandefs.h"
#include "ngspice/sperror.h"
#include "ngspice/suffix.h"
int
DIOload(GENmodel *inModel, CKTcircuit *ckt)
/* actually load the current resistance value into the
* sparse matrix previously provided
*/
{
DIOmodel *model = (DIOmodel*)inModel;
DIOinstance *here;
double arg;
double argsw;
double capd, capdsw=0.0;
double cd, cdb, cdsw, cdb_dT, cdsw_dT;
double cdeq;
double cdhat, cdhatsw=0.0;
double ceq;
double csat; /* area-scaled saturation current */
double csatsw; /* perimeter-scaled saturation current */
double czero;
double czof2;
double argSW;
double czeroSW;
double czof2SW;
double sargSW;
double sqrt_ikx;
double delvd, delvdsw=0.0; /* change in diode voltage temporary */
double evd;
double evrev;
double gd, gdb, gdsw, gen_fac, gen_fac_vd;
double t1, evd_rec, cdb_rec, gdb_rec, cdb_rec_dT;
double geq;
double gspr; /* area-scaled conductance */
double gsprsw; /* perim-scaled conductance */
double sarg;
#ifndef NOBYPASS
double tol; /* temporary for tolerence calculations */
#endif
double vd, vdsw=0.0; /* current diode voltage */
double vdtemp;
double vt; /* K t / Q */
double vte, vtesw, vtetun, vtebrk, vterec;
int Check_dio=0, Check_dio_sw=0, Check_th;
int error;
int SenCond=0; /* sensitivity condition */
double diffcharge, deplcharge, deplchargeSW, diffcap, deplcap, deplcapSW;
double deldelTemp, delTemp, Temp;
double ceqqth=0.0, Ith=0.0, gcTt=0.0, vrs=0.0, vrssw=0.0;
double dIdio_dT, dIth_dVdio=0.0, dIrs_dT=0.0, dIth_dVrs=0.0, dIth_dT=0.0;
double dIdioSw_dT=0.0, dIth_dVdioSw=0.0, dIth_dVrssw=0.0, dIrssw_dT=0.0;
double argsw_dT, csat_dT, csatsw_dT;
/* rev-rec */
double cdres, gdres;
double vqp;
double capsr, gqcsr, cqcsr;
/* loop through all the diode models */
for( ; model != NULL; model = DIOnextModel(model)) {
/* loop through all the instances of the model */
for (here = DIOinstances(model); here != NULL ;
here=DIOnextInstance(here)) {
int selfheat = ((here->DIOtempNode > 0) && (here->DIOthermal) && (model->DIOrth0Given));
int revrec = ((here->DIOqpNode > 0) && (model->DIOsoftRevRecParam!=0) && (here->DIOtTransitTime!=0));
/*
* this routine loads diodes for dc and transient analyses.
*/
if (selfheat)
Check_th = 1;
else
Check_th = 0;
if(ckt->CKTsenInfo){
if((ckt->CKTsenInfo->SENstatus == PERTURBATION)
&& (here->DIOsenPertFlag == OFF))continue;
SenCond = here->DIOsenPertFlag;
#ifdef SENSDEBUG
printf("DIOload \n");
#endif /* SENSDEBUG */
}
cdsw = 0.0;
cdsw_dT = 0.0;
gdsw = 0.0;
delTemp = 0.0;
vt = CONSTKoverQ * here->DIOtemp;
vte = model->DIOemissionCoeff * vt;
vtesw = model->DIOswEmissionCoeff * vt;
vtebrk = model->DIObrkdEmissionCoeff * vt;
vterec = model->DIOrecEmissionCoeff*vt;
gspr = here->DIOtConductance;
gsprsw = here->DIOtConductanceSW;
/*
* initialization
*/
if(SenCond){
#ifdef SENSDEBUG
printf("DIOsenPertFlag = ON \n");
#endif /* SENSDEBUG */
if((ckt->CKTsenInfo->SENmode == TRANSEN)&&
(ckt->CKTmode & MODEINITTRAN)) {
vd = *(ckt->CKTstate1 + here->DIOvoltage);
if (model->DIOresistSWGiven) vdsw = *(ckt->CKTstate1 + here->DIOvoltageSW);
delTemp = *(ckt->CKTstate1 + here->DIOdeltemp);
vqp = *(ckt->CKTstate1 + here->DIOqp);
} else{
vd = *(ckt->CKTstate0 + here->DIOvoltage);
if (model->DIOresistSWGiven) vdsw = *(ckt->CKTstate0 + here->DIOvoltageSW);
delTemp = *(ckt->CKTstate0 + here->DIOdeltemp);
vqp = *(ckt->CKTstate0 + here->DIOqp);
}
#ifdef SENSDEBUG
printf("vd = %.7e \n",vd);
#endif /* SENSDEBUG */
goto next1;
}
Check_dio=1; Check_dio_sw=1;
if(ckt->CKTmode & MODEINITSMSIG) {
vd= *(ckt->CKTstate0 + here->DIOvoltage);
if (model->DIOresistSWGiven) vdsw = *(ckt->CKTstate0 + here->DIOvoltageSW);
delTemp = *(ckt->CKTstate0 + here->DIOdeltemp);
vqp= *(ckt->CKTstate0 + here->DIOqp);
} else if (ckt->CKTmode & MODEINITTRAN) {
vd= *(ckt->CKTstate1 + here->DIOvoltage);
if (model->DIOresistSWGiven) vdsw = *(ckt->CKTstate1 + here->DIOvoltageSW);
delTemp = *(ckt->CKTstate1 + here->DIOdeltemp);
vqp= *(ckt->CKTstate1 + here->DIOqp);
} else if ( (ckt->CKTmode & MODEINITJCT) &&
(ckt->CKTmode & MODETRANOP) && (ckt->CKTmode & MODEUIC) ) {
vd=here->DIOinitCond;
if (model->DIOresistSWGiven) vdsw = here->DIOinitCond;
vqp=0;
} else if ( (ckt->CKTmode & MODEINITJCT) && here->DIOoff) {
vd=vdsw=0;
delTemp = 0.0;
vqp=0;
} else if ( ckt->CKTmode & MODEINITJCT) {
vd=here->DIOtVcrit;
vdsw=here->DIOtVcritSW;
delTemp = 0.0;
vqp=0;
} else if ( ckt->CKTmode & MODEINITFIX && here->DIOoff) {
vd=vdsw=0;
delTemp = 0.0;
vqp=0;
} else {
#ifndef PREDICTOR
if (ckt->CKTmode & MODEINITPRED) {
*(ckt->CKTstate0 + here->DIOvoltage) =
*(ckt->CKTstate1 + here->DIOvoltage);
vd = DEVpred(ckt,here->DIOvoltage);
*(ckt->CKTstate0 + here->DIOcurrent) =
*(ckt->CKTstate1 + here->DIOcurrent);
*(ckt->CKTstate0 + here->DIOconduct) =
*(ckt->CKTstate1 + here->DIOconduct);
*(ckt->CKTstate0 + here->DIOdeltemp) =
*(ckt->CKTstate1 + here->DIOdeltemp);
delTemp = DEVpred(ckt,here->DIOdeltemp);
*(ckt->CKTstate0 + here->DIOdIdio_dT) =
*(ckt->CKTstate1 + here->DIOdIdio_dT);
*(ckt->CKTstate0+here->DIOqth) =
*(ckt->CKTstate1+here->DIOqth);
if (model->DIOresistSWGiven) {
vdsw = DEVpred(ckt,here->DIOvoltageSW);
*(ckt->CKTstate0 + here->DIOdIdioSW_dT) =
*(ckt->CKTstate1 + here->DIOdIdioSW_dT);
}
vqp = DEVpred(ckt,here->DIOqp);
*(ckt->CKTstate0 + here->DIOresCurrent) =
*(ckt->CKTstate1 + here->DIOresCurrent);
*(ckt->CKTstate0 + here->DIOresConduct) =
*(ckt->CKTstate1 + here->DIOresConduct);
*(ckt->CKTstate0 + here->DIOcqcsr) =
*(ckt->CKTstate1 + here->DIOcqcsr);
*(ckt->CKTstate0 + here->DIOgqcsr) =
*(ckt->CKTstate1 + here->DIOgqcsr);
} else {
#endif /* PREDICTOR */
vd = *(ckt->CKTrhsOld+here->DIOposPrimeNode)-
*(ckt->CKTrhsOld + here->DIOnegNode);
if (model->DIOresistSWGiven) vdsw = *(ckt->CKTrhsOld+here->DIOposSwPrimeNode)-
*(ckt->CKTrhsOld + here->DIOnegNode);
if (selfheat)
delTemp = *(ckt->CKTrhsOld + here->DIOtempNode);
else
delTemp = 0.0;
*(ckt->CKTstate0+here->DIOqth) = model->DIOcth0 * delTemp;
if((ckt->CKTmode & MODEINITTRAN)) {
*(ckt->CKTstate1+here->DIOqth) =
*(ckt->CKTstate0+here->DIOqth);
}
vqp = *(ckt->CKTrhsOld+here->DIOqpNode);
#ifndef PREDICTOR
}
#endif /* PREDICTOR */
delvd=vd- *(ckt->CKTstate0 + here->DIOvoltage);
deldelTemp = delTemp - *(ckt->CKTstate0 + here->DIOdeltemp);
cdhat= *(ckt->CKTstate0 + here->DIOcurrent) +
*(ckt->CKTstate0 + here->DIOconduct) * delvd +
*(ckt->CKTstate0 + here->DIOdIdio_dT) * deldelTemp;
if (model->DIOresistSWGiven) {
delvdsw=vdsw - *(ckt->CKTstate0 + here->DIOvoltageSW);
cdhatsw = *(ckt->CKTstate0 + here->DIOconductSW) * delvdsw +
*(ckt->CKTstate0 + here->DIOdIdioSW_dT) * deldelTemp;
}
/*
* bypass if solution has not changed
*/
#ifndef NOBYPASS
if ((!(ckt->CKTmode & MODEINITPRED)) && (ckt->CKTbypass)) {
tol=ckt->CKTvoltTol + ckt->CKTreltol*
MAX(fabs(vd),fabs(*(ckt->CKTstate0 +here->DIOvoltage)));
if (fabs(delvd) < tol) {
tol=ckt->CKTreltol* MAX(fabs(cdhat),
fabs(*(ckt->CKTstate0 + here->DIOcurrent)))+
ckt->CKTabstol;
if (fabs(cdhat- *(ckt->CKTstate0 + here->DIOcurrent))
< tol) {
if ((here->DIOtempNode == 0) ||
(fabs(deldelTemp) < (ckt->CKTreltol * MAX(fabs(delTemp),
fabs(*(ckt->CKTstate0+here->DIOdeltemp)))+
ckt->CKTvoltTol*1e4))) {
if ((!model->DIOresistSWGiven) || (fabs(delvdsw) < ckt->CKTvoltTol + ckt->CKTreltol *
MAX(fabs(vdsw),fabs(*(ckt->CKTstate0+here->DIOvoltageSW))))) {
if ((!model->DIOresistSWGiven) || (fabs(cdhatsw- *(ckt->CKTstate0 + here->DIOcurrentSW))
< ckt->CKTreltol* MAX(fabs(cdhatsw),
fabs(*(ckt->CKTstate0 + here->DIOcurrentSW)))+ckt->CKTabstol)) {
vd= *(ckt->CKTstate0 + here->DIOvoltage);
cd= *(ckt->CKTstate0 + here->DIOcurrent);
gd= *(ckt->CKTstate0 + here->DIOconduct);
delTemp = *(ckt->CKTstate0 + here->DIOdeltemp);
dIdio_dT= *(ckt->CKTstate0 + here->DIOdIdio_dT);
if (model->DIOresistSWGiven) {
vdsw= *(ckt->CKTstate0 + here->DIOvoltageSW);
cdsw= *(ckt->CKTstate0 + here->DIOcurrentSW);
gdsw= *(ckt->CKTstate0 + here->DIOconductSW);
dIdioSw_dT= *(ckt->CKTstate0 + here->DIOdIdioSW_dT);
}
vqp= *(ckt->CKTstate0 + here->DIOqp);
cdres= *(ckt->CKTstate0 + here->DIOresCurrent);
gdres= *(ckt->CKTstate0 + here->DIOresConduct);
cqcsr= *(ckt->CKTstate0 + here->DIOcqcsr);
gqcsr= *(ckt->CKTstate0 + here->DIOgqcsr);
goto load;
}
}
}
}
}
}
#endif /* NOBYPASS */
/*
* limit new junction voltage
*/
if ( (model->DIObreakdownVoltageGiven) &&
(vd < MIN(0,-here->DIOtBrkdwnV+10*vtebrk))) {
vdtemp = -(vd+here->DIOtBrkdwnV);
vdtemp = DEVpnjlim(vdtemp,
-(*(ckt->CKTstate0 + here->DIOvoltage) +
here->DIOtBrkdwnV),vtebrk,
here->DIOtVcrit,&Check_dio);
vd = -(vdtemp+here->DIOtBrkdwnV);
} else {
vd = DEVpnjlim(vd,*(ckt->CKTstate0 + here->DIOvoltage),
vte,here->DIOtVcrit,&Check_dio);
}
if (model->DIOresistSWGiven) {
if ( (model->DIObreakdownVoltageGiven) &&
(vdsw < MIN(0,-here->DIOtBrkdwnV+10*vtebrk))) {
vdtemp = -(vdsw+here->DIOtBrkdwnV);
vdtemp = DEVpnjlim(vdtemp,
-(*(ckt->CKTstate0 + here->DIOvoltageSW) +
here->DIOtBrkdwnV),vtebrk,
here->DIOtVcritSW,&Check_dio_sw);
vdsw = -(vdtemp+here->DIOtBrkdwnV);
} else {
vdsw = DEVpnjlim(vdsw,*(ckt->CKTstate0 + here->DIOvoltageSW),
vtesw,here->DIOtVcritSW,&Check_dio_sw);
}
}
if (selfheat)
delTemp = DEVlimitlog(delTemp,
*(ckt->CKTstate0 + here->DIOdeltemp), 100, &Check_th);
else
delTemp = 0.0;
}
/*
* compute dc current and derivitives
*/
next1:
if (selfheat) {
Temp = here->DIOtemp + delTemp;
DIOtempUpdate(model, here, Temp, ckt);
vt = CONSTKoverQ * Temp;
vte = model->DIOemissionCoeff * vt;
vtebrk = model->DIObrkdEmissionCoeff * vt;
} else {
Temp = here->DIOtemp;
}
csat = here->DIOtSatCur;
csat_dT = here->DIOtSatCur_dT;
csatsw = here->DIOtSatSWCur;
csatsw_dT = here->DIOtSatSWCur_dT;
gspr = here->DIOtConductance;
gsprsw = here->DIOtConductanceSW;
if (model->DIOsatSWCurGiven) { /* sidewall current */
double vds;
if (model->DIOresistSWGiven)
vds = vdsw; /* sidewall voltage used */
else
vds = vd; /* common voltage used */
if (model->DIOswEmissionCoeffGiven) { /* with own characteristic */
if (vds >= -3*vtesw) { /* forward */
evd = exp(vds/vtesw);
cdsw = csatsw*(evd-1);
gdsw = csatsw*evd/vtesw;
cdsw_dT = csatsw_dT * (evd - 1) - csatsw * vds * evd / (vtesw * Temp);
} else if ((!(model->DIObreakdownVoltageGiven)) ||
vds >= -here->DIOtBrkdwnV) { /* reverse */
argsw = 3*vtesw/(vds*CONSTe);
argsw = argsw * argsw * argsw;
argsw_dT = 3 * argsw / Temp;
cdsw = -csatsw*(1+argsw);
gdsw = csatsw*3*argsw/vds;
cdsw_dT = -csatsw_dT - (csatsw_dT*argsw + csatsw*argsw_dT);
} else if (!model->DIOresistSWGiven){ /* breakdown, but not for separate sidewall diode */
double evrev_dT;
evrev = exp(-(here->DIOtBrkdwnV+vds)/vtebrk);
evrev_dT = (here->DIOtBrkdwnV+vds)*evrev/(vtebrk*Temp);
cdsw = -csatsw*evrev;
gdsw = csatsw*evrev/vtebrk;
cdsw_dT = -(csatsw_dT*evrev + csatsw*evrev_dT);
}
}
}
/*
* temperature dependent diode saturation current and derivative
*/
if (vd >= -3*vte) { /* bottom and sidewall current forward with common voltage */
/* and with common characteristic */
evd = exp(vd/vte);
cdb = csat*(evd-1);
gdb = csat*evd/vte;
cdb_dT = csat_dT * (evd - 1) - csat * vd * evd / (vte * Temp);
if ((model->DIOsatSWCurGiven)&&(!model->DIOswEmissionCoeffGiven)) {
cdsw = csatsw*(evd-1);
gdsw = csatsw*evd/vte;
cdsw_dT = csatsw_dT * (evd - 1) - csatsw * vd * evd / (vte * Temp);
}
if (model->DIOrecSatCurGiven) { /* recombination current */
evd_rec = exp(vd/vterec);
cdb_rec = here->DIOtRecSatCur*(evd_rec-1);
gdb_rec = here->DIOtRecSatCur*evd_rec/vterec;
cdb_rec_dT = here->DIOtRecSatCur_dT * (evd_rec - 1)
-here->DIOtRecSatCur * vd * evd_rec / (vterec*Temp);
t1 = pow((1-vd/here->DIOtJctPot), 2) + 0.005;
gen_fac = pow(t1, here->DIOtGradingCoeff/2);
gen_fac_vd = -here->DIOtGradingCoeff * (1-vd/here->DIOtJctPot)
* pow(t1, (here->DIOtGradingCoeff/2-1));
cdb_rec = cdb_rec * gen_fac;
gdb_rec = gdb_rec * gen_fac + cdb_rec * gen_fac_vd;
cdb = cdb + cdb_rec;
gdb = gdb + gdb_rec;
cdb_dT = cdb_dT + cdb_rec_dT*gen_fac;
}
} else if ((!(model->DIObreakdownVoltageGiven)) ||
vd >= -here->DIOtBrkdwnV) { /* reverse */
double darg_dT;
arg = 3*vte/(vd*CONSTe);
arg = arg * arg * arg;
darg_dT = 3 * arg / Temp;
if (model->DIOrecSatCurGiven) {
evd_rec = exp((-3*vte)/vterec);
cdb_rec = here->DIOtRecSatCur*(evd_rec-1);
t1 = pow((1-(-3*vte)/here->DIOtJctPot), 2) + 0.005;
gen_fac = pow(t1, here->DIOtGradingCoeff/2);
cdb = -csat*(1+arg) + gen_fac*cdb_rec;
} else {
cdb = -csat*(1+arg);
}
gdb = csat*3*arg/vd;
cdb_dT = -csat_dT - (csat_dT*arg + csat*darg_dT);
if ((model->DIOsatSWCurGiven)&&(!model->DIOswEmissionCoeffGiven)) {
cdsw = -csatsw*(1+arg);
gdsw = csatsw*3*arg/vd;
cdsw_dT = -csatsw_dT - (csatsw_dT*arg + csatsw*darg_dT);
}
} else { /* breakdown */
double evrev_dT;
evrev = exp(-(here->DIOtBrkdwnV+vd)/vtebrk);
evrev_dT = (here->DIOtBrkdwnV+vd)*evrev/(vtebrk*Temp);
if (model->DIOrecSatCurGiven) {
evd_rec = exp((-3*vte)/vterec);
cdb_rec = here->DIOtRecSatCur*(evd_rec-1);
t1 = pow((1-(-3*vte)/here->DIOtJctPot), 2) + 0.005;
gen_fac = pow(t1, here->DIOtGradingCoeff/2);
cdb = -csat*evrev + gen_fac*cdb_rec;
} else {
cdb = -csat*evrev;
}
gdb = csat*evrev/vtebrk;
cdb_dT = -(csat_dT*evrev + csat*evrev_dT);
if ((model->DIOsatSWCurGiven)
&&(!model->DIOswEmissionCoeffGiven)
&&(!model->DIOresistSWGiven)) { /* no breakdown for separate sidewall diode */
evrev = exp(-(here->DIOtBrkdwnV+vdsw)/vtebrk);
evrev_dT = (here->DIOtBrkdwnV+vdsw)*evrev/(vtebrk*Temp);
cdsw = -csatsw*evrev;
gdsw = csatsw*evrev/vtebrk;
cdsw_dT = -(csatsw_dT*evrev + csatsw*evrev_dT);
}
}
if (model->DIOtunSatSWCurGiven) { /* tunnel sidewall current */
vtetun = model->DIOtunEmissionCoeff * vt;
evd = exp(-vd/vtetun);
cdsw = cdsw - here->DIOtTunSatSWCur * (evd - 1);
gdsw = gdsw + here->DIOtTunSatSWCur * evd / vtetun;
cdsw_dT = cdsw_dT - here->DIOtTunSatSWCur_dT * (evd - 1)
- here->DIOtTunSatSWCur * vd * evd / (vtetun * Temp);
}
if (model->DIOtunSatCurGiven) { /* tunnel bottom current */
vtetun = model->DIOtunEmissionCoeff * vt;
evd = exp(-vd/vtetun);
cdb = cdb - here->DIOtTunSatCur * (evd - 1);
gdb = gdb + here->DIOtTunSatCur * evd / vtetun;
cdb_dT = cdb_dT - here->DIOtTunSatCur_dT * (evd - 1)
- here->DIOtTunSatCur * vd * evd / (vtetun * Temp);
}
if (vd >= -3*vte) { /* limit forward */
if ( (model->DIOforwardKneeCurrentGiven) && (cdb > 1.0e-18) ) {
double ikf_area_m = here->DIOforwardKneeCurrent;
sqrt_ikx = sqrt(cdb/ikf_area_m);
gdb = ((1+sqrt_ikx)*gdb - cdb*gdb/(2*sqrt_ikx*ikf_area_m))/(1+2*sqrt_ikx + cdb/ikf_area_m);
cdb = cdb/(1+sqrt_ikx);
}
} else { /* limit reverse */
if ( (model->DIOreverseKneeCurrentGiven) && (cdb < -1.0e-18) ) {
double ikr_area_m = here->DIOreverseKneeCurrent;
sqrt_ikx = sqrt(cdb/(-ikr_area_m));
gdb = ((1+sqrt_ikx)*gdb + cdb*gdb/(2*sqrt_ikx*ikr_area_m))/(1+2*sqrt_ikx - cdb/ikr_area_m);
cdb = cdb/(1+sqrt_ikx);
}
}
if ( (model->DIOforwardSWKneeCurrentGiven) && (cdsw > 1.0e-18) ) {
double ikp_peri_m = here->DIOforwardSWKneeCurrent;
sqrt_ikx = sqrt(cdsw/ikp_peri_m);
gdsw = ((1+sqrt_ikx)*gdsw - cdsw*gdsw/(2*sqrt_ikx*ikp_peri_m))/(1+2*sqrt_ikx + cdsw/ikp_peri_m);
cdsw = cdsw/(1+sqrt_ikx);
}
if (!model->DIOresistSWGiven) {
cd = cdb + cdsw + ckt->CKTgmin*vd;
gd = gdb + gdsw + ckt->CKTgmin;
dIdio_dT = cdb_dT + cdsw_dT;
} else {
cd = cdb + ckt->CKTgmin*vd;
gd = gdb + ckt->CKTgmin;
cdsw = cdsw + ckt->CKTgmin*vdsw;
gdsw = gdsw + ckt->CKTgmin;
dIdio_dT = cdb_dT;
dIdioSw_dT = cdsw_dT;
}
cdres = cd;
gdres = gd;
cqcsr = 0;
gqcsr = 0;
if ((ckt->CKTmode & (MODEDCTRANCURVE | MODETRAN | MODEAC | MODEINITSMSIG)) ||
((ckt->CKTmode & MODETRANOP) && (ckt->CKTmode & MODEUIC))) {
/*
* charge storage elements
*/
czero=here->DIOtJctCap;
if (vd < here->DIOtDepCap){
arg=1-vd/here->DIOtJctPot;
sarg=exp(-here->DIOtGradingCoeff*log(arg));
deplcharge = here->DIOtJctPot*czero*(1-arg*sarg)/(1-here->DIOtGradingCoeff);
deplcap = czero*sarg;
} else {
czof2=czero/here->DIOtF2;
deplcharge = czero*here->DIOtF1+czof2*(here->DIOtF3*(vd-here->DIOtDepCap)+
(here->DIOtGradingCoeff/(here->DIOtJctPot+here->DIOtJctPot))*(vd*vd-here->DIOtDepCap*here->DIOtDepCap));
deplcap = czof2*(here->DIOtF3+here->DIOtGradingCoeff*vd/here->DIOtJctPot);
}
czeroSW=here->DIOtJctSWCap;
double vdx;
if (model->DIOresistSWGiven)
vdx = vdsw;
else
vdx = vd;
if (vdx < here->DIOtDepSWCap){
argSW=1-vdx/here->DIOtJctSWPot;
sargSW=exp(-model->DIOgradingSWCoeff*log(argSW));
deplchargeSW = here->DIOtJctSWPot*czeroSW*(1-argSW*sargSW)/(1-model->DIOgradingSWCoeff);
deplcapSW = czeroSW*sargSW;
} else {
czof2SW=czeroSW/here->DIOtF2SW;
deplchargeSW = czeroSW*here->DIOtF1+czof2SW*(here->DIOtF3SW*(vdx-here->DIOtDepSWCap)+
(model->DIOgradingSWCoeff/(here->DIOtJctSWPot+here->DIOtJctSWPot))*(vdx*vdx-here->DIOtDepSWCap*here->DIOtDepSWCap));
deplcapSW = czof2SW*(here->DIOtF3SW+model->DIOgradingSWCoeff*vdx/here->DIOtJctSWPot);
}
if (revrec) {
/*
soft recovery with TT!=0
add only depletion capacitance.
*/
*(ckt->CKTstate0 + here->DIOcapCharge) =
deplcharge + deplchargeSW + (here->DIOcmetal + here->DIOcpoly)*vd;
capd = deplcap + deplcapSW + here->DIOcmetal + here->DIOcpoly;
here->DIOcap = capd;
/*
DIOcap is now equal only to depletion capacitance + overlap capacitance.
Diffusion capacitance is modelled via Qp so there is no clear way to define it.
*/
/* Now prepare the charge for the capacitor connected to the QP node */
*(ckt->CKTstate0 + here->DIOsrcapCharge) = here->DIOtTransitTime * vqp;
capsr = here->DIOtTransitTime;
} else {
/* no soft recovery of soft recovery with TT=0 (i.e. no soft recovery due to TT=0) */
diffcharge = here->DIOtTransitTime*cd;
diffcap = here->DIOtTransitTime*gd;
if (!model->DIOresistSWGiven) {
*(ckt->CKTstate0 + here->DIOcapCharge) =
diffcharge + deplcharge + deplchargeSW + (here->DIOcmetal + here->DIOcpoly)*vd;
capd = diffcap + deplcap + deplcapSW + here->DIOcmetal + here->DIOcpoly;
here->DIOcap = capd;
} else {
*(ckt->CKTstate0 + here->DIOcapCharge) =
diffcharge + deplcharge + (here->DIOcmetal + here->DIOcpoly)*vd;
capd = diffcap + deplcap + here->DIOcmetal + here->DIOcpoly;
here->DIOcap = capd;
*(ckt->CKTstate0 + here->DIOcapChargeSW) =
deplcapSW;
capdsw = deplcapSW;
here->DIOcapSW = capdsw;
}
*(ckt->CKTstate0 + here->DIOsrcapCharge) = 0;
capsr = 0;
}
/*
* store small-signal parameters
*/
if( (!(ckt->CKTmode & MODETRANOP)) ||
(!(ckt->CKTmode & MODEUIC)) ) {
if (ckt->CKTmode & MODEINITSMSIG){
*(ckt->CKTstate0 + here->DIOcapCurrent) = capd;
if (model->DIOresistSWGiven) {
*(ckt->CKTstate0 + here->DIOcapCurrentSW) = capdsw;
}
if(SenCond){
*(ckt->CKTstate0 + here->DIOcurrent) = cd;
*(ckt->CKTstate0 + here->DIOconduct) = gd;
*(ckt->CKTstate0 + here->DIOdIdio_dT) = dIdio_dT;
if (model->DIOresistSWGiven) {
*(ckt->CKTstate0 + here->DIOcurrentSW) = cdsw;
*(ckt->CKTstate0 + here->DIOconductSW) = gdsw;
*(ckt->CKTstate0 + here->DIOdIdioSW_dT) = dIdioSw_dT;
}
*(ckt->CKTstate0 + here->DIOresCurrent) = cdres;
*(ckt->CKTstate0 + here->DIOresConduct) = gdres;
*(ckt->CKTstate0 + here->DIOcqcsr) = cqcsr;
*(ckt->CKTstate0 + here->DIOgqcsr) = gqcsr;
#ifdef SENSDEBUG
printf("storing small signal parameters\n");
printf("cd = %.7e,vd = %.7e\n",cd,vd);
printf("capd = %.7e ,gd = %.7e \n",capd,gd);
#endif /* SENSDEBUG */
}
continue;
}
/*
* transient analysis
*/
if(SenCond && (ckt->CKTsenInfo->SENmode == TRANSEN)){
*(ckt->CKTstate0 + here->DIOcurrent) = cd;
if (model->DIOresistSWGiven)
*(ckt->CKTstate0 + here->DIOcurrentSW) = cdsw;
*(ckt->CKTstate0 + here->DIOresCurrent) = cdres;
#ifdef SENSDEBUG
printf("storing parameters for transient sensitivity\n"
);
printf("qd = %.7e, capd = %.7e,cd = %.7e\n",
*(ckt->CKTstate0 + here->DIOcapCharge),capd,cd);
#endif /* SENSDEBUG */
continue;
}
if (ckt->CKTmode & MODEINITTRAN) {
*(ckt->CKTstate1 + here->DIOcapCharge) =
*(ckt->CKTstate0 + here->DIOcapCharge);
if (model->DIOresistSWGiven)
*(ckt->CKTstate1 + here->DIOcapChargeSW) =
*(ckt->CKTstate0 + here->DIOcapChargeSW);
}
error = NIintegrate(ckt,&geq,&ceq,capd,here->DIOcapCharge);
if(error) return(error);
gd=gd+geq;
cd=cd+*(ckt->CKTstate0 + here->DIOcapCurrent);
if (model->DIOresistSWGiven) {
error = NIintegrate(ckt,&geq,&ceq,capdsw,here->DIOcapChargeSW);
if(error) return(error);
gdsw=gdsw+geq;
cdsw=cdsw+*(ckt->CKTstate0 + here->DIOcapCurrentSW);
}
if (ckt->CKTmode & MODEINITTRAN) {
*(ckt->CKTstate1 + here->DIOcapCurrent) =
*(ckt->CKTstate0 + here->DIOcapCurrent);
if (model->DIOresistSWGiven)
*(ckt->CKTstate1 + here->DIOcapCurrentSW) =
*(ckt->CKTstate0 + here->DIOcapCurrentSW);
}
if (revrec) {
/* soft recovery subcircuit */
if (ckt->CKTmode & MODEINITTRAN) {
*(ckt->CKTstate1 + here->DIOsrcapCharge) =
*(ckt->CKTstate0 + here->DIOsrcapCharge);
}
error = NIintegrate(ckt,&geq,&ceq,capsr,here->DIOsrcapCharge);
if(error) return(error);
gqcsr = geq;
cqcsr = *(ckt->CKTstate0 + here->DIOsrcapCurrent);
if (ckt->CKTmode & MODEINITTRAN) {
*(ckt->CKTstate1 + here->DIOsrcapCurrent) =
*(ckt->CKTstate0 + here->DIOsrcapCurrent);
}
}
if (selfheat)
{
error = NIintegrate(ckt, &gcTt, &ceqqth, model->DIOcth0, here->DIOqth);
if (error) return(error);
if (ckt->CKTmode & MODEINITTRAN) {
*(ckt->CKTstate1 + here->DIOcqth) =
*(ckt->CKTstate0 + here->DIOcqth);
}
}
}
}
if(SenCond) goto next2;
/*
* check convergence
*/
if ( (!(ckt->CKTmode & MODEINITFIX)) || (!(here->DIOoff)) ) {
if (!model->DIOresistSWGiven) {
if ((Check_th == 1) || (Check_dio == 1)) {
ckt->CKTnoncon++;
ckt->CKTtroubleElt = (GENinstance *) here;
}
} else {
if ((Check_th == 1) || (Check_dio == 1) || (Check_dio_sw == 1)) {
ckt->CKTnoncon++;
ckt->CKTtroubleElt = (GENinstance *) here;
}
}
}
next2: *(ckt->CKTstate0 + here->DIOvoltage) = vd;
*(ckt->CKTstate0 + here->DIOcurrent) = cd;
*(ckt->CKTstate0 + here->DIOconduct) = gd;
*(ckt->CKTstate0 + here->DIOdeltemp) = delTemp;
*(ckt->CKTstate0 + here->DIOdIdio_dT) = dIdio_dT;
if (model->DIOresistSWGiven) {
*(ckt->CKTstate0 + here->DIOvoltageSW) = vdsw;
*(ckt->CKTstate0 + here->DIOcurrentSW) = cdsw;
*(ckt->CKTstate0 + here->DIOconductSW) = gdsw;
*(ckt->CKTstate0 + here->DIOdIdioSW_dT) = dIdioSw_dT;
}
*(ckt->CKTstate0 + here->DIOqp) = vqp;
*(ckt->CKTstate0 + here->DIOresCurrent) = cdres;
*(ckt->CKTstate0 + here->DIOresConduct) = gdres;
*(ckt->CKTstate0 + here->DIOcqcsr) = cqcsr;
*(ckt->CKTstate0 + here->DIOgqcsr) = gqcsr;
if(SenCond) continue;
#ifndef NOBYPASS
load:
#endif
if (selfheat) {
double dIrs_dVrs, dIrs_dgspr, dIth_dIrs;
vrs = *(ckt->CKTrhsOld + here->DIOposNode) - *(ckt->CKTrhsOld + here->DIOposPrimeNode);
dIrs_dVrs = gspr;
dIrs_dgspr = vrs;
dIrs_dT = dIrs_dgspr * here->DIOtConductance_dT;
Ith = vd*cd + vrs*vrs*gspr; /* Diode dissipated power */
dIth_dVrs = vrs*gspr;
dIth_dIrs = vrs;
dIth_dVrs = dIth_dVrs + dIth_dIrs*dIrs_dVrs;
dIth_dT = dIth_dIrs*dIrs_dT + dIdio_dT*vd;
dIth_dVdio = cd + vd*gd;
here->DIOdIth_dVrs = dIth_dVrs;
here->DIOgcTt = gcTt;
here->DIOdIrs_dT = dIrs_dT;
here->DIOdIth_dVdio = dIth_dVdio;
here->DIOdIth_dT = dIth_dT;
if (model->DIOresistSWGiven) {
double dIrssw_dVrssw, dIrssw_dgsprsw, dIth_dIrssw;
vrssw = *(ckt->CKTrhsOld + here->DIOposNode) - *(ckt->CKTrhsOld + here->DIOposSwPrimeNode);
dIrssw_dVrssw = gsprsw;
dIrssw_dgsprsw = vrssw;
dIrssw_dT = dIrssw_dgsprsw * here->DIOtConductanceSW_dT;
Ith = Ith + vdsw*cdsw + vrssw*vrssw*gsprsw; /* Diode dissipated power */
dIth_dVrssw = vrssw*gsprsw;
dIth_dIrssw = vrssw;
dIth_dVrssw = dIth_dVrssw + dIth_dIrssw*dIrssw_dVrssw;
dIth_dT = dIth_dT + dIth_dIrssw*dIrssw_dT + dIdioSw_dT*vdsw;
dIth_dVdioSw = cdsw + vdsw*gdsw;
here->DIOdIth_dVrssw = dIth_dVrssw;
here->DIOdIth_dVdio = dIth_dVdioSw;
here->DIOdIth_dT = dIth_dT;
here->DIOdIrssw_dT = dIrssw_dT;
}
}
/*
* load current vector
*/
cdeq=cd-gd*vd;
*(ckt->CKTrhs + here->DIOnegNode) += cdeq;
*(ckt->CKTrhs + here->DIOposPrimeNode) -= cdeq;
if (selfheat) {
*(ckt->CKTrhs + here->DIOposNode) += dIrs_dT*delTemp;
*(ckt->CKTrhs + here->DIOposPrimeNode) += dIdio_dT*delTemp - dIrs_dT*delTemp;
*(ckt->CKTrhs + here->DIOnegNode) += -dIdio_dT*delTemp;
*(ckt->CKTrhs + here->DIOtempNode) += Ith - dIth_dVdio*vd - dIth_dVrs*vrs - dIth_dT*delTemp - ceqqth;
}
if (model->DIOresistSWGiven) {
double cdeqsw=cdsw-gdsw*vdsw;
*(ckt->CKTrhs + here->DIOnegNode) += cdeqsw;
*(ckt->CKTrhs + here->DIOposSwPrimeNode) -= cdeqsw;
if (selfheat) {
*(ckt->CKTrhs + here->DIOposNode) += dIrssw_dT*delTemp;
*(ckt->CKTrhs + here->DIOposSwPrimeNode) += dIdioSw_dT*delTemp - dIrssw_dT*delTemp;
*(ckt->CKTrhs + here->DIOnegNode) += -dIdioSw_dT*delTemp;
*(ckt->CKTrhs + here->DIOtempNode) += -dIth_dVdioSw*vdsw - dIth_dVrssw*vrssw;
}
}
/*
* load matrix
*/
*(here->DIOposPosPtr) += gspr;
*(here->DIOnegNegPtr) += gd;
*(here->DIOposPrimePosPrimePtr) += (gd + gspr);
*(here->DIOposPosPrimePtr) -= gspr;
*(here->DIOnegPosPrimePtr) -= gd;
*(here->DIOposPrimePosPtr) -= gspr;
*(here->DIOposPrimeNegPtr) -= gd;
if (selfheat) {
(*(here->DIOtempPosPtr) += -dIth_dVrs);
(*(here->DIOtempPosPrimePtr) += -dIth_dVdio + dIth_dVrs);
(*(here->DIOtempNegPtr) += dIth_dVdio);
(*(here->DIOtempTempPtr) += -dIth_dT + 1/model->DIOrth0 + gcTt);
(*(here->DIOposTempPtr) += dIrs_dT);
(*(here->DIOposPrimeTempPtr) += dIdio_dT - dIrs_dT);
(*(here->DIOnegTempPtr) += -dIdio_dT);
}
if (model->DIOresistSWGiven) {
*(here->DIOposPosPtr) += gsprsw;
*(here->DIOnegNegPtr) += gdsw;
*(here->DIOposSwPrimePosSwPrimePtr) += (gdsw + gsprsw);
*(here->DIOposPosSwPrimePtr) -= gsprsw;
*(here->DIOnegPosSwPrimePtr) -= gdsw;
*(here->DIOposSwPrimePosPtr) -= gsprsw;
*(here->DIOposSwPrimeNegPtr) -= gdsw;
if (selfheat) {
(*(here->DIOtempPosPtr) += -dIth_dVrssw);
(*(here->DIOtempPosSwPrimePtr) += -dIth_dVdioSw + dIth_dVrssw);
(*(here->DIOtempNegPtr) += dIth_dVdioSw);
(*(here->DIOposTempPtr) += dIrssw_dT);
(*(here->DIOposSwPrimeTempPtr) += dIdioSw_dT - dIrssw_dT);
(*(here->DIOnegTempPtr) += -dIdioSw_dT);
}
}
if (revrec) {
double fac, ceqrr, dcrrdvd, grr;
double ceqrrd, geqrrd;
/* QP subcircuit */
fac = here->DIOtTransitTime / model->DIOsoftRevRecParam;
dcrrdvd = fac*gdres;
ceqrr = -fac*cdres + cqcsr + dcrrdvd*vd - gqcsr*vqp;
grr = 1/model->DIOsoftRevRecParam;
*(ckt->CKTrhs + here->DIOqpNode) -= ceqrr;
*(here->DIOqpQpPtr) += grr + gqcsr;
*(here->DIOqpPosPrimePtr) += -dcrrdvd;
*(here->DIOqpNegPtr) += dcrrdvd;
/* Contribution to diode current */
here->DIOqpGain = (1 - model->DIOsoftRevRecParam) / here->DIOtTransitTime;
/* Linear contribution -(1-vp)/tau*ddt(Qp) */
geqrrd = here->DIOqpGain*gqcsr;
ceqrrd = here->DIOqpGain*cqcsr - geqrrd*vqp;
*(ckt->CKTrhs + here->DIOposPrimeNode) -= ceqrrd;
*(ckt->CKTrhs + here->DIOnegNode) += ceqrrd;
*(here->DIOposPrimeQpPtr) += geqrrd;
*(here->DIOnegQpPtr) += -geqrrd;
}
}
}
return(OK);
}