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re-introdeuce parameter phi Resulting temperature dependency of vto still not available

This commit is contained in:
Holger Vogt 2018-04-06 08:28:11 +02:00 committed by rlar
parent 070b448420
commit 0dc0aa06c4
3 changed files with 11 additions and 1 deletions
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1
src/spicelib/devices/vdmos/vdmosdefs.h
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@ -57,6 +57,7 @@ typedef struct sVDMOSinstance {
double VDMOSdtemp; /* operating temperature of the instance relative to circuit temperature*/ double VDMOSdtemp; /* operating temperature of the instance relative to circuit temperature*/
double VDMOStTransconductance; /* temperature corrected transconductance*/ double VDMOStTransconductance; /* temperature corrected transconductance*/
double VDMOStPhi; /* temperature corrected Phi */
double VDMOStVto; /* temperature corrected Vto */ double VDMOStVto; /* temperature corrected Vto */
double VDMOStSatCur; /* temperature corrected saturation Cur. */ double VDMOStSatCur; /* temperature corrected saturation Cur. */
double VDMOStBulkPot; /* temperature corrected Bulk potential */ double VDMOStBulkPot; /* temperature corrected Bulk potential */

2
src/spicelib/devices/vdmos/vdmosdset.c
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@ -282,7 +282,7 @@ VDMOSdSetup(GENmodel *inModel, CKTcircuit *ckt)
phi = 0.6; phi = here->VDMOStPhi;
cox = 0;/*FIXME: can we do disto without knowing the oxide thickness?*/ cox = 0;/*FIXME: can we do disto without knowing the oxide thickness?*/
if (vgst <= -phi) { if (vgst <= -phi) {
lcapgb2=lcapgb3=lcapgs2=lcapgs3=lcapgd2=lcapgd3=0; lcapgb2=lcapgb3=lcapgs2=lcapgs3=lcapgd2=lcapgd3=0;

9
src/spicelib/devices/vdmos/vdmostemp.c
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@ -22,6 +22,7 @@ VDMOStemp(GENmodel *inModel, CKTcircuit *ckt)
double kt,kt1; double kt,kt1;
double arg1; double arg1;
double ratio,ratio4; double ratio,ratio4;
double phio;
double pbfact1,pbfact; double pbfact1,pbfact;
double vt,vtnom; double vt,vtnom;
/* loop through all the resistor models */ /* loop through all the resistor models */
@ -43,6 +44,12 @@ VDMOStemp(GENmodel *inModel, CKTcircuit *ckt)
/* now model parameter preprocessing */ /* now model parameter preprocessing */
if (model->VDMOSphi <= 0.0) {
SPfrontEnd->IFerrorf(ERR_FATAL,
"%s: Phi is not positive.", model->VDMOSmodName);
return(E_BADPARM);
}
model->VDMOSoxideCapFactor = 0; model->VDMOSoxideCapFactor = 0;
@ -80,6 +87,8 @@ VDMOStemp(GENmodel *inModel, CKTcircuit *ckt)
ratio4 = ratio * sqrt(ratio); ratio4 = ratio * sqrt(ratio);
here->VDMOStTransconductance = model->VDMOStransconductance / ratio4; here->VDMOStTransconductance = model->VDMOStransconductance / ratio4;
phio = (model->VDMOSphi - pbfact1) / fact1;
here->VDMOStPhi = fact2 * phio + pbfact;
here->VDMOStVto = model->VDMOSvt0; here->VDMOStVto = model->VDMOSvt0;
here->VDMOSCbd = 0; here->VDMOSCbd = 0;