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Added "dtemp" anf "m" to jfet model. Added a test netlist and updated DEVICES.

This commit is contained in:
pnenzi 2003-12-26 09:46:48 +00:00
parent 531fb3575a
commit 14eef00d5c
23 changed files with 193 additions and 194 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2003-12-26 Paolo Nenzi <p.nenzi@ieee.org>
* src/spicelibe/devices/jfet/*: Added parallel multiplier and
"dtemp" parameter.
* DEVICES: Updated jfet status
* tests/jfet, tests/jfet/jfet_vds-vgs.cir: added jfet directory
and one netlist.
2003-12-24 Paolo Nenzi <p.nenzi@ieee.org> 2003-12-24 Paolo Nenzi <p.nenzi@ieee.org>
* src/maths/cmaths/cmath4.c: Applied * src/maths/cmaths/cmath4.c: Applied

13
DEVICES
View File

@ -171,7 +171,18 @@ BJT2 - Bipolar Junction Trasistor
*************************************************************************** ***************************************************************************
JFET - Junction Field Effect transistor JFET - Junction Field Effect transistor
Initial Release Initial Release.
Ver: N/A
Class: J
Level: 1
Status:
This is the original spice JFET model.
Enhancements over the original model:
- Parallel multiplier
- Instance temperature as difference for circuit temperature
JFET2 - Jfet PS model JFET2 - Jfet PS model
Initial release. TO BE TESTED Initial release. TO BE TESTED

3
src/spicelib/devices/jfet/jfet.c
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@ -7,7 +7,6 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "ifsim.h" #include "ifsim.h"
#include "devdefs.h" #include "devdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -17,9 +16,11 @@ IFparm JFETpTable[] = { /* device parameters */
IOPU("off", JFET_OFF, IF_FLAG, "Device initially off"), IOPU("off", JFET_OFF, IF_FLAG, "Device initially off"),
IOPAU("ic", JFET_IC, IF_REALVEC,"Initial VDS,VGS vector"), IOPAU("ic", JFET_IC, IF_REALVEC,"Initial VDS,VGS vector"),
IOPU("area", JFET_AREA, IF_REAL, "Area factor"), IOPU("area", JFET_AREA, IF_REAL, "Area factor"),
IOPU("m", JFET_M, IF_REAL, "Parallel multiplier"),
IOPAU("ic-vds", JFET_IC_VDS, IF_REAL, "Initial D-S voltage"), IOPAU("ic-vds", JFET_IC_VDS, IF_REAL, "Initial D-S voltage"),
IOPAU("ic-vgs", JFET_IC_VGS, IF_REAL, "Initial G-S volrage"), IOPAU("ic-vgs", JFET_IC_VGS, IF_REAL, "Initial G-S volrage"),
IOPU("temp", JFET_TEMP, IF_REAL, "Instance temperature"), IOPU("temp", JFET_TEMP, IF_REAL, "Instance temperature"),
IOPU("dtemp", JFET_DTEMP, IF_REAL, "Instance temperature difference"),
OPU("drain-node", JFET_DRAINNODE, IF_INTEGER,"Number of drain node"), OPU("drain-node", JFET_DRAINNODE, IF_INTEGER,"Number of drain node"),
OPU("gate-node", JFET_GATENODE, IF_INTEGER,"Number of gate node"), OPU("gate-node", JFET_GATENODE, IF_INTEGER,"Number of gate node"),
OPU("source-node", JFET_SOURCENODE, IF_INTEGER,"Number of source node"), OPU("source-node", JFET_SOURCENODE, IF_INTEGER,"Number of source node"),

54
src/spicelib/devices/jfet/jfetacld.c
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@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
@ -14,9 +13,7 @@ Author: 1985 Thomas L. Quarles
int int
JFETacLoad(inModel,ckt) JFETacLoad(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
JFETinstance *here; JFETinstance *here;
@ -29,6 +26,8 @@ JFETacLoad(inModel,ckt)
double ggd; double ggd;
double xgd; double xgd;
double m;
for( ; model != NULL; model = model->JFETnextModel ) { for( ; model != NULL; model = model->JFETnextModel ) {
for( here = model->JFETinstances; here != NULL; for( here = model->JFETinstances; here != NULL;
@ -43,28 +42,31 @@ JFETacLoad(inModel,ckt)
xgs= *(ckt->CKTstate0 + here->JFETqgs) * ckt->CKTomega ; xgs= *(ckt->CKTstate0 + here->JFETqgs) * ckt->CKTomega ;
ggd= *(ckt->CKTstate0 + here->JFETggd) ; ggd= *(ckt->CKTstate0 + here->JFETggd) ;
xgd= *(ckt->CKTstate0 + here->JFETqgd) * ckt->CKTomega ; xgd= *(ckt->CKTstate0 + here->JFETqgd) * ckt->CKTomega ;
*(here->JFETdrainDrainPtr ) += gdpr;
*(here->JFETgateGatePtr ) += ggd+ggs; m = here->JFETm;
*(here->JFETgateGatePtr +1) += xgd+xgs;
*(here->JFETsourceSourcePtr ) += gspr; *(here->JFETdrainDrainPtr ) += m * (gdpr);
*(here->JFETdrainPrimeDrainPrimePtr ) += gdpr+gds+ggd; *(here->JFETgateGatePtr ) += m * (ggd+ggs);
*(here->JFETdrainPrimeDrainPrimePtr +1) += xgd; *(here->JFETgateGatePtr +1) += m * (xgd+xgs);
*(here->JFETsourcePrimeSourcePrimePtr ) += gspr+gds+gm+ggs; *(here->JFETsourceSourcePtr ) += m * (gspr);
*(here->JFETsourcePrimeSourcePrimePtr +1) += xgs; *(here->JFETdrainPrimeDrainPrimePtr ) += m * (gdpr+gds+ggd);
*(here->JFETdrainDrainPrimePtr ) -= gdpr; *(here->JFETdrainPrimeDrainPrimePtr +1) += m * (xgd);
*(here->JFETgateDrainPrimePtr ) -= ggd; *(here->JFETsourcePrimeSourcePrimePtr ) += m * (gspr+gds+gm+ggs);
*(here->JFETgateDrainPrimePtr +1) -= xgd; *(here->JFETsourcePrimeSourcePrimePtr +1) += m * (xgs);
*(here->JFETgateSourcePrimePtr ) -= ggs; *(here->JFETdrainDrainPrimePtr ) -= m * (gdpr);
*(here->JFETgateSourcePrimePtr +1) -= xgs; *(here->JFETgateDrainPrimePtr ) -= m * (ggd);
*(here->JFETsourceSourcePrimePtr ) -= gspr; *(here->JFETgateDrainPrimePtr +1) -= m * (xgd);
*(here->JFETdrainPrimeDrainPtr ) -= gdpr; *(here->JFETgateSourcePrimePtr ) -= m * (ggs);
*(here->JFETdrainPrimeGatePtr ) += (-ggd+gm); *(here->JFETgateSourcePrimePtr +1) -= m * (xgs);
*(here->JFETdrainPrimeGatePtr +1) -= xgd; *(here->JFETsourceSourcePrimePtr ) -= m * (gspr);
*(here->JFETdrainPrimeSourcePrimePtr ) += (-gds-gm); *(here->JFETdrainPrimeDrainPtr ) -= m * (gdpr);
*(here->JFETsourcePrimeGatePtr ) += (-ggs-gm); *(here->JFETdrainPrimeGatePtr ) += m * (-ggd+gm);
*(here->JFETsourcePrimeGatePtr +1) -= xgs; *(here->JFETdrainPrimeGatePtr +1) -= m * (xgd);
*(here->JFETsourcePrimeSourcePtr ) -= gspr; *(here->JFETdrainPrimeSourcePrimePtr ) += m * (-gds-gm);
*(here->JFETsourcePrimeDrainPrimePtr ) -= gds; *(here->JFETsourcePrimeGatePtr ) += m * (-ggs-gm);
*(here->JFETsourcePrimeGatePtr +1) -= m * (xgs);
*(here->JFETsourcePrimeSourcePtr ) -= m * (gspr);
*(here->JFETsourcePrimeDrainPrimePtr ) -= m * (gds);
} }
} }

29
src/spicelib/devices/jfet/jfetask.c
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@ -6,7 +6,6 @@ Author: 1987 Mathew Lew and Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "const.h" #include "const.h"
#include "ifsim.h" #include "ifsim.h"
#include "cktdefs.h" #include "cktdefs.h"
@ -18,12 +17,8 @@ Author: 1987 Mathew Lew and Thomas L. Quarles
/*ARGSUSED*/ /*ARGSUSED*/
int int
JFETask(ckt,inst,which,value,select) JFETask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value,
CKTcircuit *ckt; IFvalue *select)
GENinstance *inst;
int which;
IFvalue *value;
IFvalue *select;
{ {
JFETinstance *here = (JFETinstance*)inst; JFETinstance *here = (JFETinstance*)inst;
static char *msg = "Current and power not available for ac analysis"; static char *msg = "Current and power not available for ac analysis";
@ -31,8 +26,15 @@ JFETask(ckt,inst,which,value,select)
case JFET_TEMP: case JFET_TEMP:
value->rValue = here->JFETtemp-CONSTCtoK; value->rValue = here->JFETtemp-CONSTCtoK;
return(OK); return(OK);
case JFET_DTEMP:
value->rValue = here->JFETdtemp;
return(OK);
case JFET_AREA: case JFET_AREA:
value->rValue = here->JFETarea; value->rValue = here->JFETarea;
value->rValue *= here->JFETm;
return(OK);
case JFET_M:
value->rValue = here->JFETm;
return(OK); return(OK);
case JFET_IC_VDS: case JFET_IC_VDS:
value->rValue = here->JFETicVDS; value->rValue = here->JFETicVDS;
@ -66,36 +68,47 @@ JFETask(ckt,inst,which,value,select)
return(OK); return(OK);
case JFET_CG: case JFET_CG:
value->rValue = *(ckt->CKTstate0 + here->JFETcg); value->rValue = *(ckt->CKTstate0 + here->JFETcg);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_CD: case JFET_CD:
value->rValue = *(ckt->CKTstate0 + here->JFETcd); value->rValue = *(ckt->CKTstate0 + here->JFETcd);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_CGD: case JFET_CGD:
value->rValue = *(ckt->CKTstate0 + here->JFETcgd); value->rValue = *(ckt->CKTstate0 + here->JFETcgd);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_GM: case JFET_GM:
value->rValue = *(ckt->CKTstate0 + here->JFETgm); value->rValue = *(ckt->CKTstate0 + here->JFETgm);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_GDS: case JFET_GDS:
value->rValue = *(ckt->CKTstate0 + here->JFETgds); value->rValue = *(ckt->CKTstate0 + here->JFETgds);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_GGS: case JFET_GGS:
value->rValue = *(ckt->CKTstate0 + here->JFETggs); value->rValue = *(ckt->CKTstate0 + here->JFETggs);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_GGD: case JFET_GGD:
value->rValue = *(ckt->CKTstate0 + here->JFETggd); value->rValue = *(ckt->CKTstate0 + here->JFETggd);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_QGS: case JFET_QGS:
value->rValue = *(ckt->CKTstate0 + here->JFETqgs); value->rValue = *(ckt->CKTstate0 + here->JFETqgs);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_CQGS: case JFET_CQGS:
value->rValue = *(ckt->CKTstate0 + here->JFETcqgs); value->rValue = *(ckt->CKTstate0 + here->JFETcqgs);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_QGD: case JFET_QGD:
value->rValue = *(ckt->CKTstate0 + here->JFETqgd); value->rValue = *(ckt->CKTstate0 + here->JFETqgd);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_CQGD: case JFET_CQGD:
value->rValue = *(ckt->CKTstate0 + here->JFETcqgd); value->rValue = *(ckt->CKTstate0 + here->JFETcqgd);
value->rValue *= here->JFETm;
return(OK); return(OK);
case JFET_CS : case JFET_CS :
if (ckt->CKTcurrentAnalysis & DOING_AC) { if (ckt->CKTcurrentAnalysis & DOING_AC) {
@ -106,6 +119,7 @@ JFETask(ckt,inst,which,value,select)
} else { } else {
value->rValue = -*(ckt->CKTstate0 + here->JFETcd); value->rValue = -*(ckt->CKTstate0 + here->JFETcd);
value->rValue -= *(ckt->CKTstate0 + here->JFETcg); value->rValue -= *(ckt->CKTstate0 + here->JFETcg);
value->rValue *= here->JFETm;
} }
return(OK); return(OK);
case JFET_POWER : case JFET_POWER :
@ -122,6 +136,7 @@ JFETask(ckt,inst,which,value,select)
value->rValue -= (*(ckt->CKTstate0 + here->JFETcd) + value->rValue -= (*(ckt->CKTstate0 + here->JFETcd) +
*(ckt->CKTstate0 + here->JFETcg)) * *(ckt->CKTstate0 + here->JFETcg)) *
*(ckt->CKTrhsOld + here->JFETsourceNode); *(ckt->CKTrhsOld + here->JFETsourceNode);
value->rValue *= here->JFETm;
} }
return(OK); return(OK);
default: default:

6
src/spicelib/devices/jfet/jfetdefs.h
View File

@ -127,15 +127,19 @@ typedef struct sJFETinstance {
unsigned JFEToff :1; /* 'off' flag for jfet */ unsigned JFEToff :1; /* 'off' flag for jfet */
unsigned JFETareaGiven : 1; /* flag to indicate area was specified */ unsigned JFETareaGiven : 1; /* flag to indicate area was specified */
unsigned JFETmGiven : 1; /* flag to indicate parallel multiplier given */
unsigned JFETicVDSGiven : 1; /* initial condition given flag for V D-S*/ unsigned JFETicVDSGiven : 1; /* initial condition given flag for V D-S*/
unsigned JFETicVGSGiven : 1; /* initial condition given flag for V G-S*/ unsigned JFETicVGSGiven : 1; /* initial condition given flag for V G-S*/
unsigned JFETtempGiven : 1; /* flag to indicate instance temp given */ unsigned JFETtempGiven : 1; /* flag to indicate instance temp given */
unsigned JFETdtempGiven : 1; /* flag to indicate instance dtemp given */
double JFETarea; /* area factor for the jfet */ double JFETarea; /* area factor for the jfet */
double JFETm; /* Parallel multiplier */
double JFETicVDS; /* initial condition voltage D-S*/ double JFETicVDS; /* initial condition voltage D-S*/
double JFETicVGS; /* initial condition voltage G-S*/ double JFETicVGS; /* initial condition voltage G-S*/
double JFETtemp; /* operating temperature */ double JFETtemp; /* operating temperature */
double JFETdtemp; /* instance temperature difference */
double JFETtSatCur; /* temperature adjusted saturation current */ double JFETtSatCur; /* temperature adjusted saturation current */
double JFETtGatePot; /* temperature adjusted gate potential */ double JFETtGatePot; /* temperature adjusted gate potential */
double JFETtCGS; /* temperature corrected G-S capacitance */ double JFETtCGS; /* temperature corrected G-S capacitance */
@ -230,6 +234,8 @@ typedef struct sJFETmodel { /* model structure for a jfet */
#define JFET_IC 4 #define JFET_IC 4
#define JFET_OFF 5 #define JFET_OFF 5
#define JFET_TEMP 6 #define JFET_TEMP 6
#define JFET_DTEMP 7
#define JFET_M 8
/* model parameters */ /* model parameters */
#define JFET_MOD_VTO 101 #define JFET_MOD_VTO 101

6
src/spicelib/devices/jfet/jfetdel.c
View File

@ -6,17 +6,13 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
#include "suffix.h" #include "suffix.h"
int int
JFETdelete(inModel,name,inst) JFETdelete(GENmodel *inModel, IFuid name, GENinstance **inst)
GENmodel *inModel;
IFuid name;
GENinstance **inst;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
JFETinstance **fast = (JFETinstance**)inst; JFETinstance **fast = (JFETinstance**)inst;

4
src/spicelib/devices/jfet/jfetdest.c
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@ -6,14 +6,12 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "jfetdefs.h" #include "jfetdefs.h"
#include "suffix.h" #include "suffix.h"
void void
JFETdestroy(inModel) JFETdestroy(GENmodel **inModel)
GENmodel **inModel;
{ {
JFETmodel **model = (JFETmodel**)inModel; JFETmodel **model = (JFETmodel**)inModel;
JFETinstance *here; JFETinstance *here;

7
src/spicelib/devices/jfet/jfetdist.c
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@ -4,7 +4,6 @@ Author: 1988 Jaijeet S Roychowdhury
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
@ -12,11 +11,7 @@ Author: 1988 Jaijeet S Roychowdhury
#include "suffix.h" #include "suffix.h"
int int
JFETdisto(mode,genmodel,ckt) JFETdisto(int mode, GENmodel *genmodel, CKTcircuit *ckt)
GENmodel *genmodel;
CKTcircuit *ckt;
int mode;
/* assuming here that ckt->CKTomega has been initialised to /* assuming here that ckt->CKTomega has been initialised to
* the correct value * the correct value
*/ */

17
src/spicelib/devices/jfet/jfetdset.c
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@ -4,7 +4,6 @@ Author: 1988 Jaijeet S Roychowdhury
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "distodef.h" #include "distodef.h"
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -15,9 +14,7 @@ Author: 1988 Jaijeet S Roychowdhury
#include "suffix.h" #include "suffix.h"
int int
JFETdSetup(inModel,ckt) JFETdSetup(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
/* actually load the current resistance value into the /* actually load the current resistance value into the
* sparse matrix previously provided * sparse matrix previously provided
*/ */
@ -81,10 +78,10 @@ JFETdSetup(inModel,ckt)
/* /*
* dc model parameters * dc model parameters
*/ */
beta = model->JFETbeta * here->JFETarea; beta = model->JFETbeta * here->JFETarea * here->JFETm;
gdpr=model->JFETdrainConduct*here->JFETarea; gdpr=model->JFETdrainConduct*here->JFETarea * here->JFETm;
gspr=model->JFETsourceConduct*here->JFETarea; gspr=model->JFETsourceConduct*here->JFETarea * here-> JFETm;
csat=here->JFETtSatCur*here->JFETarea; csat=here->JFETtSatCur*here->JFETarea * here-> JFETm;
/* /*
* initialization * initialization
*/ */
@ -189,8 +186,8 @@ JFETdSetup(inModel,ckt)
/* /*
* charge storage elements * charge storage elements
*/ */
czgs=here->JFETtCGS*here->JFETarea; czgs=here->JFETtCGS*here->JFETarea * here->JFETm;
czgd=here->JFETtCGD*here->JFETarea; czgd=here->JFETtCGD*here->JFETarea * here->JFETm;
twop=here->JFETtGatePot+here->JFETtGatePot; twop=here->JFETtGatePot+here->JFETtGatePot;
fcpb2=here->JFETcorDepCap*here->JFETcorDepCap; fcpb2=here->JFETcorDepCap*here->JFETcorDepCap;
czgsf2=czgs/model->JFETf2; czgsf2=czgs/model->JFETf2;

22
src/spicelib/devices/jfet/jfetext.h
View File

@ -4,7 +4,6 @@ Author: 1985 Thomas L. Quarles
Modified: 2000 AlansFixes Modified: 2000 AlansFixes
**********/ **********/
#ifdef __STDC__
extern int JFETacLoad(GENmodel*,CKTcircuit*); extern int JFETacLoad(GENmodel*,CKTcircuit*);
extern int JFETask(CKTcircuit*,GENinstance*,int,IFvalue*,IFvalue*); extern int JFETask(CKTcircuit*,GENinstance*,int,IFvalue*,IFvalue*);
extern int JFETdelete(GENmodel*,IFuid,GENinstance**); extern int JFETdelete(GENmodel*,IFuid,GENinstance**);
@ -22,25 +21,4 @@ extern int JFETtemp(GENmodel*,CKTcircuit*);
extern int JFETtrunc(GENmodel*,CKTcircuit*,double*); extern int JFETtrunc(GENmodel*,CKTcircuit*,double*);
extern int JFETdisto(int,GENmodel*,CKTcircuit*); extern int JFETdisto(int,GENmodel*,CKTcircuit*);
extern int JFETnoise(int,int,GENmodel*,CKTcircuit*,Ndata*,double*); extern int JFETnoise(int,int,GENmodel*,CKTcircuit*,Ndata*,double*);
extern int JFETdSetup(GENmodel*,CKTcircuit*); extern int JFETdSetup(GENmodel*,CKTcircuit*);
#else /* stdc */
extern int JFETacLoad();
extern int JFETask();
extern int JFETdelete();
extern void JFETdestroy();
extern int JFETgetic();
extern int JFETload();
extern int JFETmAsk();
extern int JFETmDelete();
extern int JFETmParam();
extern int JFETparam();
extern int JFETpzLoad();
extern int JFETsetup();
extern int JFETunsetup();
extern int JFETtemp();
extern int JFETtrunc();
extern int JFETdisto();
extern int JFETnoise();
#endif /* stdc */

5
src/spicelib/devices/jfet/jfetic.c
View File

@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
@ -14,9 +13,7 @@ Author: 1985 Thomas L. Quarles
int int
JFETgetic(inModel,ckt) JFETgetic(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
JFETinstance *here; JFETinstance *here;

46
src/spicelib/devices/jfet/jfetload.c
View File

@ -8,7 +8,6 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
#include "const.h" #include "const.h"
@ -18,9 +17,7 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
#include "suffix.h" #include "suffix.h"
int int
JFETload(inModel,ckt) JFETload(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
/* actually load the current resistance value into the /* actually load the current resistance value into the
* sparse matrix previously provided * sparse matrix previously provided
*/ */
@ -78,6 +75,8 @@ JFETload(inModel,ckt)
double arg, vt_temp; double arg, vt_temp;
double m;
/* loop through all the models */ /* loop through all the models */
for( ; model != NULL; model = model->JFETnextModel ) { for( ; model != NULL; model = model->JFETnextModel ) {
@ -424,32 +423,35 @@ JFETload(inModel,ckt)
* load current vector * load current vector
*/ */
load: load:
m = here->JFETm;
ceqgd=model->JFETtype*(cgd-ggd*vgd); ceqgd=model->JFETtype*(cgd-ggd*vgd);
ceqgs=model->JFETtype*((cg-cgd)-ggs*vgs); ceqgs=model->JFETtype*((cg-cgd)-ggs*vgs);
cdreq=model->JFETtype*((cd+cgd)-gds*vds-gm*vgs); cdreq=model->JFETtype*((cd+cgd)-gds*vds-gm*vgs);
*(ckt->CKTrhs + here->JFETgateNode) += (-ceqgs-ceqgd); *(ckt->CKTrhs + here->JFETgateNode) += m * (-ceqgs-ceqgd);
*(ckt->CKTrhs + here->JFETdrainPrimeNode) += *(ckt->CKTrhs + here->JFETdrainPrimeNode) +=
(-cdreq+ceqgd); m * (-cdreq+ceqgd);
*(ckt->CKTrhs + here->JFETsourcePrimeNode) += *(ckt->CKTrhs + here->JFETsourcePrimeNode) +=
(cdreq+ceqgs); m * (cdreq+ceqgs);
/* /*
* load y matrix * load y matrix
*/ */
*(here->JFETdrainDrainPrimePtr) += (-gdpr); *(here->JFETdrainDrainPrimePtr) += m * (-gdpr);
*(here->JFETgateDrainPrimePtr) += (-ggd); *(here->JFETgateDrainPrimePtr) += m * (-ggd);
*(here->JFETgateSourcePrimePtr) += (-ggs); *(here->JFETgateSourcePrimePtr) += m * (-ggs);
*(here->JFETsourceSourcePrimePtr) += (-gspr); *(here->JFETsourceSourcePrimePtr) += m * (-gspr);
*(here->JFETdrainPrimeDrainPtr) += (-gdpr); *(here->JFETdrainPrimeDrainPtr) += m * (-gdpr);
*(here->JFETdrainPrimeGatePtr) += (gm-ggd); *(here->JFETdrainPrimeGatePtr) += m * (gm-ggd);
*(here->JFETdrainPrimeSourcePrimePtr) += (-gds-gm); *(here->JFETdrainPrimeSourcePrimePtr) += m * (-gds-gm);
*(here->JFETsourcePrimeGatePtr) += (-ggs-gm); *(here->JFETsourcePrimeGatePtr) += m * (-ggs-gm);
*(here->JFETsourcePrimeSourcePtr) += (-gspr); *(here->JFETsourcePrimeSourcePtr) += m * (-gspr);
*(here->JFETsourcePrimeDrainPrimePtr) += (-gds); *(here->JFETsourcePrimeDrainPrimePtr) += m * (-gds);
*(here->JFETdrainDrainPtr) += (gdpr); *(here->JFETdrainDrainPtr) += m * (gdpr);
*(here->JFETgateGatePtr) += (ggd+ggs); *(here->JFETgateGatePtr) += m * (ggd+ggs);
*(here->JFETsourceSourcePtr) += (gspr); *(here->JFETsourceSourcePtr) += m * (gspr);
*(here->JFETdrainPrimeDrainPrimePtr) += (gdpr+gds+ggd); *(here->JFETdrainPrimeDrainPrimePtr) += m * (gdpr+gds+ggd);
*(here->JFETsourcePrimeSourcePrimePtr) += (gspr+gds+gm+ggs); *(here->JFETsourcePrimeSourcePrimePtr) += m * (gspr+gds+gm+ggs);
} }
} }
return(OK); return(OK);

7
src/spicelib/devices/jfet/jfetmask.c
View File

@ -9,7 +9,6 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "const.h" #include "const.h"
#include "ifsim.h" #include "ifsim.h"
#include "cktdefs.h" #include "cktdefs.h"
@ -21,11 +20,7 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
/*ARGSUSED*/ /*ARGSUSED*/
int int
JFETmAsk(ckt,inModel,which,value) JFETmAsk(CKTcircuit *ckt, GENmodel *inModel, int which, IFvalue *value)
CKTcircuit *ckt;
GENmodel *inModel;
int which;
IFvalue *value;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
switch(which) { switch(which) {

6
src/spicelib/devices/jfet/jfetmdel.c
View File

@ -6,17 +6,13 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
#include "suffix.h" #include "suffix.h"
int int
JFETmDelete(inModel,modname,kill) JFETmDelete(GENmodel **inModel, IFuid modname, GENmodel *kill)
GENmodel **inModel;
IFuid modname;
GENmodel *kill;
{ {
JFETmodel **model = (JFETmodel**)inModel; JFETmodel **model = (JFETmodel**)inModel;
JFETmodel *modfast = (JFETmodel*)kill; JFETmodel *modfast = (JFETmodel*)kill;

6
src/spicelib/devices/jfet/jfetmpar.c
View File

@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "const.h" #include "const.h"
#include "ifsim.h" #include "ifsim.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -15,10 +14,7 @@ Author: 1985 Thomas L. Quarles
int int
JFETmParam(param,value,inModels) JFETmParam(int param, IFvalue *value, GENmodel *inModels)
int param;
IFvalue *value;
GENmodel *inModels;
{ {
JFETmodel *model = (JFETmodel*)inModels; JFETmodel *model = (JFETmodel*)inModels;
switch(param) { switch(param) {

19
src/spicelib/devices/jfet/jfetnoi.c
View File

@ -4,7 +4,6 @@ Author: 1987 Gary W. Ng
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "jfetdefs.h" #include "jfetdefs.h"
#include "cktdefs.h" #include "cktdefs.h"
#include "iferrmsg.h" #include "iferrmsg.h"
@ -24,13 +23,8 @@ extern void NevalSrc();
extern double Nintegrate(); extern double Nintegrate();
int int
JFETnoise (mode, operation, genmodel, ckt, data, OnDens) JFETnoise (int mode, int operation, GENmodel *genmodel, CKTcircuit *ckt, Ndata *data,
int mode; double *OnDens)
int operation;
GENmodel *genmodel;
CKTcircuit *ckt;
Ndata *data;
double *OnDens;
{ {
JFETmodel *firstModel = (JFETmodel *) genmodel; JFETmodel *firstModel = (JFETmodel *) genmodel;
JFETmodel *model; JFETmodel *model;
@ -117,21 +111,22 @@ if (!data->namelist) return(E_NOMEM);
case N_DENS: case N_DENS:
NevalSrc(&noizDens[JFETRDNOIZ],&lnNdens[JFETRDNOIZ], NevalSrc(&noizDens[JFETRDNOIZ],&lnNdens[JFETRDNOIZ],
ckt,THERMNOISE,inst->JFETdrainPrimeNode,inst->JFETdrainNode, ckt,THERMNOISE,inst->JFETdrainPrimeNode,inst->JFETdrainNode,
model->JFETdrainConduct * inst->JFETarea); model->JFETdrainConduct * inst->JFETarea * inst->JFETm);
NevalSrc(&noizDens[JFETRSNOIZ],&lnNdens[JFETRSNOIZ], NevalSrc(&noizDens[JFETRSNOIZ],&lnNdens[JFETRSNOIZ],
ckt,THERMNOISE,inst->JFETsourcePrimeNode, ckt,THERMNOISE,inst->JFETsourcePrimeNode,
inst->JFETsourceNode,model->JFETsourceConduct*inst->JFETarea); inst->JFETsourceNode,model->JFETsourceConduct
* inst->JFETarea * inst->JFETm);
NevalSrc(&noizDens[JFETIDNOIZ],&lnNdens[JFETIDNOIZ], NevalSrc(&noizDens[JFETIDNOIZ],&lnNdens[JFETIDNOIZ],
ckt,THERMNOISE,inst->JFETdrainPrimeNode, ckt,THERMNOISE,inst->JFETdrainPrimeNode,
inst->JFETsourcePrimeNode, inst->JFETsourcePrimeNode,
(2.0/3.0 * fabs(*(ckt->CKTstate0 + inst->JFETgm)))); (2.0/3.0 * inst->JFETm * fabs(*(ckt->CKTstate0 + inst->JFETgm))));
NevalSrc(&noizDens[JFETFLNOIZ],(double*)NULL,ckt, NevalSrc(&noizDens[JFETFLNOIZ],(double*)NULL,ckt,
N_GAIN,inst->JFETdrainPrimeNode, N_GAIN,inst->JFETdrainPrimeNode,
inst->JFETsourcePrimeNode, (double)0.0); inst->JFETsourcePrimeNode, (double)0.0);
noizDens[JFETFLNOIZ] *= model->JFETfNcoef * noizDens[JFETFLNOIZ] *= inst->JFETm * model->JFETfNcoef *
exp(model->JFETfNexp * exp(model->JFETfNexp *
log(MAX(fabs(*(ckt->CKTstate0 + inst->JFETcd)),N_MINLOG))) / log(MAX(fabs(*(ckt->CKTstate0 + inst->JFETcd)),N_MINLOG))) /
data->freq; data->freq;

15
src/spicelib/devices/jfet/jfetpar.c
View File

@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "const.h" #include "const.h"
#include "ifsim.h" #include "ifsim.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -16,11 +15,7 @@ Author: 1985 Thomas L. Quarles
/* ARGSUSED */ /* ARGSUSED */
int int
JFETparam(param,value,inst,select) JFETparam(int param, IFvalue *value, GENinstance *inst, IFvalue *select)
int param;
IFvalue *value;
GENinstance *inst;
IFvalue *select;
{ {
JFETinstance *here = (JFETinstance *)inst; JFETinstance *here = (JFETinstance *)inst;
switch(param) { switch(param) {
@ -28,10 +23,18 @@ JFETparam(param,value,inst,select)
here->JFETtemp = value->rValue+CONSTCtoK; here->JFETtemp = value->rValue+CONSTCtoK;
here->JFETtempGiven = TRUE; here->JFETtempGiven = TRUE;
break; break;
case JFET_DTEMP:
here->JFETdtemp = value->rValue;
here->JFETdtempGiven = TRUE;
break;
case JFET_AREA: case JFET_AREA:
here->JFETarea = value->rValue; here->JFETarea = value->rValue;
here->JFETareaGiven = TRUE; here->JFETareaGiven = TRUE;
break; break;
case JFET_M:
here->JFETm = value->rValue;
here->JFETmGiven = TRUE;
break;
case JFET_IC_VDS: case JFET_IC_VDS:
here->JFETicVDS = value->rValue; here->JFETicVDS = value->rValue;
here->JFETicVDSGiven = TRUE; here->JFETicVDSGiven = TRUE;

69
src/spicelib/devices/jfet/jfetpzld.c
View File

@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "complex.h" #include "complex.h"
#include "sperror.h" #include "sperror.h"
@ -15,10 +14,7 @@ Author: 1985 Thomas L. Quarles
int int
JFETpzLoad(inModel,ckt,s) JFETpzLoad(GENmodel *inModel, CKTcircuit *ckt, SPcomplex *s)
GENmodel *inModel;
CKTcircuit *ckt;
SPcomplex *s;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
JFETinstance *here; JFETinstance *here;
@ -31,12 +27,16 @@ JFETpzLoad(inModel,ckt,s)
double ggd; double ggd;
double xgd; double xgd;
double m;
for( ; model != NULL; model = model->JFETnextModel ) { for( ; model != NULL; model = model->JFETnextModel ) {
for( here = model->JFETinstances; here != NULL; for( here = model->JFETinstances; here != NULL;
here = here->JFETnextInstance) { here = here->JFETnextInstance) {
if (here->JFETowner != ARCHme) continue; if (here->JFETowner != ARCHme) continue;
m = here->JFETm;
gdpr=model->JFETdrainResist * here->JFETarea; gdpr=model->JFETdrainResist * here->JFETarea;
gspr=model->JFETsourceResist * here->JFETarea; gspr=model->JFETsourceResist * here->JFETarea;
gm= *(ckt->CKTstate0 + here->JFETgm) ; gm= *(ckt->CKTstate0 + here->JFETgm) ;
@ -45,35 +45,36 @@ JFETpzLoad(inModel,ckt,s)
xgs= *(ckt->CKTstate0 + here->JFETqgs) ; xgs= *(ckt->CKTstate0 + here->JFETqgs) ;
ggd= *(ckt->CKTstate0 + here->JFETggd) ; ggd= *(ckt->CKTstate0 + here->JFETggd) ;
xgd= *(ckt->CKTstate0 + here->JFETqgd) ; xgd= *(ckt->CKTstate0 + here->JFETqgd) ;
*(here->JFETdrainDrainPtr ) += gdpr;
*(here->JFETgateGatePtr ) += ggd+ggs; *(here->JFETdrainDrainPtr ) += m * gdpr;
*(here->JFETgateGatePtr ) += (xgd+xgs) * s->real; *(here->JFETgateGatePtr ) += m * (ggd+ggs);
*(here->JFETgateGatePtr +1) += (xgd+xgs) * s->imag; *(here->JFETgateGatePtr ) += m * ((xgd+xgs) * s->real);
*(here->JFETsourceSourcePtr ) += gspr; *(here->JFETgateGatePtr +1) += m * ((xgd+xgs) * s->imag);
*(here->JFETdrainPrimeDrainPrimePtr ) += gdpr+gds+ggd; *(here->JFETsourceSourcePtr ) += m * (gspr);
*(here->JFETdrainPrimeDrainPrimePtr ) += xgd * s->real; *(here->JFETdrainPrimeDrainPrimePtr ) += m * (gdpr+gds+ggd);
*(here->JFETdrainPrimeDrainPrimePtr +1) += xgd * s->imag; *(here->JFETdrainPrimeDrainPrimePtr ) += m * (xgd * s->real);
*(here->JFETsourcePrimeSourcePrimePtr ) += gspr+gds+gm+ggs; *(here->JFETdrainPrimeDrainPrimePtr +1) += m * (xgd * s->imag);
*(here->JFETsourcePrimeSourcePrimePtr ) += xgs * s->real; *(here->JFETsourcePrimeSourcePrimePtr ) += m * (gspr+gds+gm+ggs);
*(here->JFETsourcePrimeSourcePrimePtr +1) += xgs * s->imag; *(here->JFETsourcePrimeSourcePrimePtr ) += m * (xgs * s->real);
*(here->JFETdrainDrainPrimePtr ) -= gdpr; *(here->JFETsourcePrimeSourcePrimePtr +1) += m * (xgs * s->imag);
*(here->JFETgateDrainPrimePtr ) -= ggd; *(here->JFETdrainDrainPrimePtr ) -= m * (gdpr);
*(here->JFETgateDrainPrimePtr ) -= xgd * s->real; *(here->JFETgateDrainPrimePtr ) -= m * (ggd);
*(here->JFETgateDrainPrimePtr +1) -= xgd * s->imag; *(here->JFETgateDrainPrimePtr ) -= m * (xgd * s->real);
*(here->JFETgateSourcePrimePtr ) -= ggs; *(here->JFETgateDrainPrimePtr +1) -= m * (xgd * s->imag);
*(here->JFETgateSourcePrimePtr ) -= xgs * s->real; *(here->JFETgateSourcePrimePtr ) -= m * (ggs);
*(here->JFETgateSourcePrimePtr +1) -= xgs * s->imag; *(here->JFETgateSourcePrimePtr ) -= m * (xgs * s->real);
*(here->JFETsourceSourcePrimePtr ) -= gspr; *(here->JFETgateSourcePrimePtr +1) -= m * (xgs * s->imag);
*(here->JFETdrainPrimeDrainPtr ) -= gdpr; *(here->JFETsourceSourcePrimePtr ) -= m * (gspr);
*(here->JFETdrainPrimeGatePtr ) += (-ggd+gm); *(here->JFETdrainPrimeDrainPtr ) -= m * (gdpr);
*(here->JFETdrainPrimeGatePtr ) -= xgd * s->real; *(here->JFETdrainPrimeGatePtr ) += m * (-ggd+gm);
*(here->JFETdrainPrimeGatePtr +1) -= xgd * s->imag; *(here->JFETdrainPrimeGatePtr ) -= m * (xgd * s->real);
*(here->JFETdrainPrimeSourcePrimePtr ) += (-gds-gm); *(here->JFETdrainPrimeGatePtr +1) -= m * (xgd * s->imag);
*(here->JFETsourcePrimeGatePtr ) += (-ggs-gm); *(here->JFETdrainPrimeSourcePrimePtr ) += m * (-gds-gm);
*(here->JFETsourcePrimeGatePtr ) -= xgs * s->real; *(here->JFETsourcePrimeGatePtr ) += m * (-ggs-gm);
*(here->JFETsourcePrimeGatePtr +1) -= xgs * s->imag; *(here->JFETsourcePrimeGatePtr ) -= m * (xgs * s->real);
*(here->JFETsourcePrimeSourcePtr ) -= gspr; *(here->JFETsourcePrimeGatePtr +1) -= m * (xgs * s->imag);
*(here->JFETsourcePrimeDrainPrimePtr ) -= gds; *(here->JFETsourcePrimeSourcePtr ) -= m * (gspr);
*(here->JFETsourcePrimeDrainPrimePtr ) -= m * (gds);
} }
} }

14
src/spicelib/devices/jfet/jfetset.c
View File

@ -8,7 +8,6 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "smpdefs.h" #include "smpdefs.h"
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -17,11 +16,7 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
#include "suffix.h" #include "suffix.h"
int int
JFETsetup(matrix,inModel,ckt,states) JFETsetup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit *ckt, int *states)
SMPmatrix *matrix;
GENmodel *inModel;
CKTcircuit *ckt;
int *states;
/* load the diode structure with those pointers needed later /* load the diode structure with those pointers needed later
* for fast matrix loading * for fast matrix loading
*/ */
@ -99,6 +94,9 @@ JFETsetup(matrix,inModel,ckt,states)
if(!here->JFETareaGiven) { if(!here->JFETareaGiven) {
here->JFETarea = 1; here->JFETarea = 1;
} }
if(!here->JFETmGiven) {
here->JFETm = 1;
}
here->JFETstate = *states; here->JFETstate = *states;
*states += 13; *states += 13;
@ -177,9 +175,7 @@ if((here->ptr = SMPmakeElt(matrix,here->first,here->second))==(double *)NULL){\
} }
int int
JFETunsetup(inModel,ckt) JFETunsetup(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
{ {
JFETmodel *model; JFETmodel *model;
JFETinstance *here; JFETinstance *here;

10
src/spicelib/devices/jfet/jfettemp.c
View File

@ -7,7 +7,6 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
**********/ **********/
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "smpdefs.h" #include "smpdefs.h"
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
@ -16,9 +15,7 @@ Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern
#include "suffix.h" #include "suffix.h"
int int
JFETtemp(inModel,ckt) JFETtemp(GENmodel *inModel, CKTcircuit *ckt)
GENmodel *inModel;
CKTcircuit *ckt;
/* Pre-process the model parameters after a possible change /* Pre-process the model parameters after a possible change
*/ */
{ {
@ -84,8 +81,11 @@ JFETtemp(inModel,ckt)
here=here->JFETnextInstance) { here=here->JFETnextInstance) {
if (here->JFETowner != ARCHme) continue; if (here->JFETowner != ARCHme) continue;
if(!(here->JFETdtempGiven)) {
here->JFETdtemp = 0.0;
}
if(!(here->JFETtempGiven)) { if(!(here->JFETtempGiven)) {
here->JFETtemp = ckt->CKTtemp; here->JFETtemp = ckt->CKTtemp + here->JFETdtemp;
} }
vt = here->JFETtemp * CONSTKoverQ; vt = here->JFETtemp * CONSTKoverQ;
fact2 = here->JFETtemp/REFTEMP; fact2 = here->JFETtemp/REFTEMP;

6
src/spicelib/devices/jfet/jfettrun.c
View File

@ -6,7 +6,6 @@ Author: 1985 Thomas L. Quarles
*/ */
#include "ngspice.h" #include "ngspice.h"
#include <stdio.h>
#include "cktdefs.h" #include "cktdefs.h"
#include "jfetdefs.h" #include "jfetdefs.h"
#include "sperror.h" #include "sperror.h"
@ -14,10 +13,7 @@ Author: 1985 Thomas L. Quarles
int int
JFETtrunc(inModel,ckt,timeStep) JFETtrunc(GENmodel *inModel, CKTcircuit *ckt, double *timeStep)
GENmodel *inModel;
CKTcircuit *ckt;
double *timeStep;
{ {
JFETmodel *model = (JFETmodel*)inModel; JFETmodel *model = (JFETmodel*)inModel;
JFETinstance *here; JFETinstance *here;

13
tests/jfet/jfet_vds-vgs.cir Normal file
View File

@ -0,0 +1,13 @@
* I-V Characteristics of JFET 2N4221
*
*
j1 2 1 0 MODJ
VD 2 0 25
VG 1 0 -2
*
.model MODJ NJF LEVEL=1 VTO=-3.5 BETA=4.1E-4 LAMBDA=0.002 RD=200
*
.op
.dc VD 0 25 1 VG -3 0 1
*.print DC I(VD)
.END