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Added areab and areac instance parameters to bjt level2.

This commit is contained in:
pnenzi 2003-11-01 11:28:32 +00:00
parent 1da56dbe45
commit 2f8588d326
9 changed files with 93 additions and 26 deletions
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6
src/spicelib/devices/bjt2/bjt2.c
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@ -24,7 +24,9 @@ IFparm BJT2pTable[] = { /* parameters */
IOPU("off", BJT2_OFF, IF_FLAG, "Device initially off"), IOPU("off", BJT2_OFF, IF_FLAG, "Device initially off"),
IOPAU("icvbe", BJT2_IC_VBE, IF_REAL, "Initial B-E voltage"), IOPAU("icvbe", BJT2_IC_VBE, IF_REAL, "Initial B-E voltage"),
IOPAU("icvce", BJT2_IC_VCE, IF_REAL, "Initial C-E voltage"), IOPAU("icvce", BJT2_IC_VCE, IF_REAL, "Initial C-E voltage"),
IOPU("area", BJT2_AREA, IF_REAL, "Area factor"), IOPU("area", BJT2_AREA, IF_REAL, "(Emitter) Area factor"),
IOPU("areab", BJT2_AREAB, IF_REAL, "Base area factor"),
IOPU("areac", BJT2_AREAC, IF_REAL, "Collector area factor"),
IOPU("m", BJT2_M, IF_REAL, "Parallel Multiplier"), IOPU("m", BJT2_M, IF_REAL, "Parallel Multiplier"),
IP("ic", BJT2_IC, IF_REALVEC, "Initial condition vector"), IP("ic", BJT2_IC, IF_REALVEC, "Initial condition vector"),
IP("sens_area",BJT2_AREA_SENS,IF_FLAG, "flag to request sensitivity WRT area"), IP("sens_area",BJT2_AREA_SENS,IF_FLAG, "flag to request sensitivity WRT area"),
@ -105,7 +107,7 @@ IFparm BJT2mPTable[] = { /* model parameters */
IOP("isc", BJT2_MOD_ISC, IF_REAL, "B-C leakage saturation current"), IOP("isc", BJT2_MOD_ISC, IF_REAL, "B-C leakage saturation current"),
#ifdef BJT2_COMPAT #ifdef BJT2_COMPAT
IOP("c4", BJT2_MOD_C4, IF_REAL, "Obsolete parameter name"), IOP("c4", BJT2_MOD_C4, IF_REAL, "Obsolete parameter name"),
#ifdef SPICE2COMPAT #endif
IOP("nc", BJT2_MOD_NC, IF_REAL, "B-C leakage emission coefficient"), IOP("nc", BJT2_MOD_NC, IF_REAL, "B-C leakage emission coefficient"),
IOP("rb", BJT2_MOD_RB, IF_REAL, "Zero bias base resistance"), IOP("rb", BJT2_MOD_RB, IF_REAL, "Zero bias base resistance"),
IOP("irb", BJT2_MOD_IRB, IF_REAL, "Current for base resistance=(rb+rbm)/2"), IOP("irb", BJT2_MOD_IRB, IF_REAL, "Current for base resistance=(rb+rbm)/2"),

6
src/spicelib/devices/bjt2/bjt2ask.c
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@ -47,6 +47,12 @@ BJT2ask(CKTcircuit *ckt, GENinstance *instPtr, int which, IFvalue *value,
case BJT2_AREA: case BJT2_AREA:
value->rValue = here->BJT2area; value->rValue = here->BJT2area;
return(OK); return(OK);
case BJT2_AREAB:
value->rValue = here->BJT2areab;
return(OK);
case BJT2_AREAC:
value->rValue = here->BJT2areac;
return(OK);
case BJT2_M: case BJT2_M:
value->rValue = here->BJT2m; value->rValue = here->BJT2m;
return(OK); return(OK);

28
src/spicelib/devices/bjt2/bjt2defs.h
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@ -36,7 +36,9 @@ typedef struct sBJT2instance {
/* Substrate connection is either base prime * /* Substrate connection is either base prime *
* or collector prime depending on whether * * or collector prime depending on whether *
* the device is VERTICAL or LATERAL */ * the device is VERTICAL or LATERAL */
double BJT2area; /* area factor for the bjt2 */ double BJT2area; /* (emitter) area factor for the bjt2 */
double BJT2areab; /* base area factor for the bjt2 */
double BJT2areac; /* collector area factor for the bjt2 */
double BJT2m; /* parallel multiplier */ double BJT2m; /* parallel multiplier */
double BJT2icVBE; /* initial condition voltage B-E*/ double BJT2icVBE; /* initial condition voltage B-E*/
double BJT2icVCE; /* initial condition voltage C-E*/ double BJT2icVCE; /* initial condition voltage C-E*/
@ -118,13 +120,15 @@ typedef struct sBJT2instance {
* (collector prime,base) */ * (collector prime,base) */
unsigned BJT2off :1; /* 'off' flag for bjt2 */ unsigned BJT2off :1; /* 'off' flag for bjt2 */
unsigned BJT2tempGiven :1; /* temperature given for bjt2 instance*/ unsigned BJT2tempGiven :1; /* temperature given for bjt2 instance*/
unsigned BJT2dtempGiven :1; /* temperature given for bjt2 instance*/ unsigned BJT2dtempGiven :1; /* temperature given for bjt2 instance*/
unsigned BJT2areaGiven :1; /* flag to indicate area was specified */ unsigned BJT2areaGiven :1; /* flag to indicate (emitter) area was specified */
unsigned BJT2mGiven :1; /* flag to indicate m parameter specified */ unsigned BJT2areabGiven :1; /* flag to indicate base area was specified */
unsigned BJT2icVBEGiven :1; /* flag to indicate VBE init. cond. given */ unsigned BJT2areacGiven :1; /* flag to indicate collector area was specified */
unsigned BJT2icVCEGiven :1; /* flag to indicate VCE init. cond. given */ unsigned BJT2mGiven :1; /* flag to indicate m parameter specified */
unsigned BJT2senPertFlag :1; /* indictes whether the the parameter of unsigned BJT2icVBEGiven :1; /* flag to indicate VBE init. cond. given */
unsigned BJT2icVCEGiven :1; /* flag to indicate VCE init. cond. given */
unsigned BJT2senPertFlag :1; /* indictes whether the the parameter of
the particular instance is to be perturbed */ the particular instance is to be perturbed */
int BJT2senParmNo; /* parameter # for sensitivity use; int BJT2senParmNo; /* parameter # for sensitivity use;
@ -442,7 +446,11 @@ typedef struct sBJT2model { /* model structure for a bjt2 */
#define PNP -1 #define PNP -1
#endif /*NPN*/ #endif /*NPN*/
/*
* BJT2 defaults to vertical for both NPN and
* PNP devices. It is possible to alter this
* behavior defining the GEOMETRY_COMPAT macro.
*/
#ifndef VERTICAL #ifndef VERTICAL
#define VERTICAL 1 #define VERTICAL 1
#define LATERAL -1 #define LATERAL -1
@ -459,6 +467,8 @@ typedef struct sBJT2model { /* model structure for a bjt2 */
#define BJT2_TEMP 7 #define BJT2_TEMP 7
#define BJT2_DTEMP 8 #define BJT2_DTEMP 8
#define BJT2_M 9 #define BJT2_M 9
#define BJT2_AREAB 10
#define BJT2_AREAC 11
/* model parameters */ /* model parameters */
#define BJT2_MOD_NPN 101 #define BJT2_MOD_NPN 101

32
src/spicelib/devices/bjt2/bjt2dset.c
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@ -162,8 +162,14 @@ for( ; model != NULL; model = model->BJT2nextModel ) {
c2=here->BJT2tBEleakCur*here->BJT2area * here->BJT2m; c2=here->BJT2tBEleakCur*here->BJT2area * here->BJT2m;
vte=model->BJT2leakBEemissionCoeff*vt; vte=model->BJT2leakBEemissionCoeff*vt;
oikr=model->BJT2invRollOffR/(here->BJT2area * here->BJT2m); oikr=model->BJT2invRollOffR/(here->BJT2area * here->BJT2m);
c4=here->BJT2tBCleakCur*here->BJT2area * here->BJT2m;
vtc=model->BJT2leakBCemissionCoeff*vt; c4=here->BJT2tBCleakCur * here->BJT2m;
if (model->BJT2subs == VERTICAL)
c4 *= here->BJT2areab;
else
c4 *= here->BJT2areac; /* lateral transistor */
vtc=model->BJT2leakBCemissionCoeff*vt;
xjrb=model->BJT2baseCurrentHalfResist*here->BJT2area * here->BJT2m; xjrb=model->BJT2baseCurrentHalfResist*here->BJT2area * here->BJT2m;
@ -485,14 +491,28 @@ d_ibb.d3_r3 = 6.0*gbb3;
pe=here->BJT2tBEpot; pe=here->BJT2tBEpot;
xme=model->BJT2junctionExpBE; xme=model->BJT2junctionExpBE;
cdis=model->BJT2baseFractionBCcap; cdis=model->BJT2baseFractionBCcap;
ctot=here->BJT2tBCcap*here->BJT2area * here->BJT2m;
czbc=ctot*cdis; ctot=here->BJT2tBCcap * here->BJT2m;
if (model->BJT2subs == VERTICAL)
ctot *= here->BJT2areab;
else
ctot *= here->BJT2areac;
czbc=ctot*cdis;
czbx=ctot-czbc; czbx=ctot-czbc;
pc=here->BJT2tBCpot; pc=here->BJT2tBCpot;
xmc=model->BJT2junctionExpBC; xmc=model->BJT2junctionExpBC;
fcpe=here->BJT2tDepCap; fcpe=here->BJT2tDepCap;
czcs=model->BJT2capSub*here->BJT2area * here->BJT2m; /* PN */
ps=model->BJT2potentialSubstrate; czcs=model->BJT2capSub * here->BJT2m; /* PN */
if (model->BJT2subs == VERTICAL)
czcs *= here->BJT2areac;
else
czcs *= here->BJT2areab;
ps=model->BJT2potentialSubstrate;
xms=model->BJT2exponentialSubstrate; xms=model->BJT2exponentialSubstrate;
xtf=model->BJT2transitTimeBiasCoeffF; xtf=model->BJT2transitTimeBiasCoeffF;
ovtf=model->BJT2transitTimeVBCFactor; ovtf=model->BJT2transitTimeVBCFactor;

2
src/spicelib/devices/bjt2/bjt2init.c
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@ -10,7 +10,7 @@
SPICEdev BJT2info = { SPICEdev BJT2info = {
{ {
"BJT2", "BJT2",
"Bipolar Junction Transistor (AG)", "Bipolar Junction Transistor Level 2",
&BJT2nSize, &BJT2nSize,
&BJT2nSize, &BJT2nSize,

27
src/spicelib/devices/bjt2/bjt2load.c
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@ -175,8 +175,13 @@ BJT2load(GENmodel *inModel, CKTcircuit *ckt)
c2=here->BJT2tBEleakCur*here->BJT2area; c2=here->BJT2tBEleakCur*here->BJT2area;
vte=model->BJT2leakBEemissionCoeff*vt; vte=model->BJT2leakBEemissionCoeff*vt;
oikr=model->BJT2invRollOffR/here->BJT2area; oikr=model->BJT2invRollOffR/here->BJT2area;
c4=here->BJT2tBCleakCur*here->BJT2area;
vtc=model->BJT2leakBCemissionCoeff*vt; if (model->BJT2subs == VERTICAL)
c4=here->BJT2tBCleakCur * here->BJT2areab;
else
c4=here->BJT2tBCleakCur * here->BJT2areac;
vtc=model->BJT2leakBCemissionCoeff*vt;
td=model->BJT2excessPhaseFactor; td=model->BJT2excessPhaseFactor;
xjrb=model->BJT2baseCurrentHalfResist*here->BJT2area; xjrb=model->BJT2baseCurrentHalfResist*here->BJT2area;
@ -525,14 +530,24 @@ next1: vtn=vt*model->BJT2emissionCoeffF;
pe=here->BJT2tBEpot; pe=here->BJT2tBEpot;
xme=model->BJT2junctionExpBE; xme=model->BJT2junctionExpBE;
cdis=model->BJT2baseFractionBCcap; cdis=model->BJT2baseFractionBCcap;
ctot=here->BJT2tBCcap*here->BJT2area;
czbc=ctot*cdis; if (model->BJT2subs == VERTICAL)
ctot=here->BJT2tBCcap*here->BJT2areab;
else
ctot=here->BJT2tBCcap*here->BJT2areac;
czbc=ctot*cdis;
czbx=ctot-czbc; czbx=ctot-czbc;
pc=here->BJT2tBCpot; pc=here->BJT2tBCpot;
xmc=model->BJT2junctionExpBC; xmc=model->BJT2junctionExpBC;
fcpe=here->BJT2tDepCap; fcpe=here->BJT2tDepCap;
czsub=here->BJT2tSubcap*here->BJT2area;
ps=here->BJT2tSubpot; if (model->BJT2subs == VERTICAL)
czsub=here->BJT2tSubcap*here->BJT2areac;
else
czsub=here->BJT2tSubcap*here->BJT2areab;
ps=here->BJT2tSubpot;
xms=model->BJT2exponentialSubstrate; xms=model->BJT2exponentialSubstrate;
xtf=model->BJT2transitTimeBiasCoeffF; xtf=model->BJT2transitTimeBiasCoeffF;
ovtf=model->BJT2transitTimeVBCFactor; ovtf=model->BJT2transitTimeVBCFactor;

8
src/spicelib/devices/bjt2/bjt2param.c
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@ -30,6 +30,14 @@ BJT2param(int param, IFvalue *value, GENinstance *instPtr, IFvalue *select)
here->BJT2area = value->rValue; here->BJT2area = value->rValue;
here->BJT2areaGiven = TRUE; here->BJT2areaGiven = TRUE;
break; break;
case BJT2_AREAB:
here->BJT2areab = value->rValue;
here->BJT2areabGiven = TRUE;
break;
case BJT2_AREAC:
here->BJT2areac = value->rValue;
here->BJT2areacGiven = TRUE;
break;
case BJT2_M: case BJT2_M:
here->BJT2m = value->rValue; here->BJT2m = value->rValue;
here->BJT2mGiven = TRUE; here->BJT2mGiven = TRUE;

2
src/spicelib/devices/bjt2/bjt2pzld.c
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@ -80,7 +80,7 @@ BJT2pzLoad(GENmodel *inModel, CKTcircuit *ckt, SPcomplex *s)
+ (-xcmu+xgm) * (s->real)); + (-xcmu+xgm) * (s->real));
*(here->BJT2colPrimeBasePrimePtr + 1) += m * ((-xcmu+xgm) *(here->BJT2colPrimeBasePrimePtr + 1) += m * ((-xcmu+xgm)
* (s->imag)); * (s->imag));
*(here->BJT2colPrimeEmitPrimePtr) += m *b((-gm-go) *(here->BJT2colPrimeEmitPrimePtr) += m *((-gm-go)
+ (-xgm) * (s->real)); + (-xgm) * (s->real));
*(here->BJT2colPrimeEmitPrimePtr + 1) += m * ((-xgm) * *(here->BJT2colPrimeEmitPrimePtr + 1) += m * ((-xgm) *
(s->imag)); (s->imag));

8
src/spicelib/devices/bjt2/bjt2setup.c
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@ -195,7 +195,13 @@ BJT2setup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit *ckt, int *states)
if(!here->BJT2areaGiven) { if(!here->BJT2areaGiven) {
here->BJT2area = 1; here->BJT2area = 1;
} }
if(!here->BJT2areabGiven) {
here->BJT2areab = here->BJT2area;
}
if(!here->BJT2areacGiven) {
here->BJT2areac = here->BJT2area;
}
if(!here->BJT2mGiven) { if(!here->BJT2mGiven) {
here->BJT2m = 1.0; here->BJT2m = 1.0;
} }