From 11a3711d86f8a09c4361ab16e84fd180d3b192b1 Mon Sep 17 00:00:00 2001
From: dwarning <dwarning>
Date: Thu, 13 Jun 2024 18:02:18 +0200
Subject: [PATCH] revert commit ea4c438 and db85dead by removing VJ and M
 limiting

---
 src/spicelib/devices/dio/diotemp.c | 31 ------------------------------
 1 file changed, 31 deletions(-)

diff --git a/src/spicelib/devices/dio/diotemp.c b/src/spicelib/devices/dio/diotemp.c
index f2e3d0bd3..697e9d1d6 100644
--- a/src/spicelib/devices/dio/diotemp.c
+++ b/src/spicelib/devices/dio/diotemp.c
@@ -33,12 +33,8 @@ void DIOtempUpdate(DIOmodel *inModel, DIOinstance *here, double Temp, CKTcircuit
     double egfet1,arg1,fact1,pbfact1,pbo,gmaold,pboSW,gmaSWold;
     double fact2,pbfact,arg,egfet,gmanew,gmaSWnew;
     double arg1_dT, arg2, arg2_dT;
-    double gclimit;
     double lnTRatio, egfet_dT, arg0, vte_dT, vts_dT, vtt_dT, vtr_dT;
 
-    if (!cp_getvar("DIOgradingCoeffMax", CP_REAL, &gclimit, 0))
-        gclimit = 0.9;
-
     vt = CONSTKoverQ * Temp;
     vte = model->DIOemissionCoeff * vt;
     vte_dT = CONSTKoverQ * model->DIOemissionCoeff;
@@ -57,16 +53,6 @@ void DIOtempUpdate(DIOmodel *inModel, DIOinstance *here, double Temp, CKTcircuit
                  + (model->DIOgradCoeffTemp2 * dt * dt);
     here->DIOtGradingCoeff = model->DIOgradingCoeff * factor;
 
-    /* limit temperature adjusted grading coeff
-     * to max of .9, or set new limit with variable DIOgradingCoeffMax
-     */
-    if(here->DIOtGradingCoeff>gclimit) {
-      SPfrontEnd->IFerrorf (ERR_WARNING,
-            "%s: temperature adjusted grading coefficient too large, limited to %g",
-            here->DIOname, gclimit);
-      here->DIOtGradingCoeff=gclimit;
-    }
-
     /* this part gets really ugly - I won't even try to
      * explain these equations */
     if ((model->DIOtlev == 0) || (model->DIOtlev == 1)) {
@@ -212,23 +198,6 @@ void DIOtempUpdate(DIOmodel *inModel, DIOinstance *here, double Temp, CKTcircuit
     /* and Vcrit */
     here->DIOtVcrit = vte * log(vte/(CONSTroot2*here->DIOtSatCur));
 
-    /* limit junction potential to max of 1/FC */
-    if(here->DIOtDepCap > 1.0) {
-        here->DIOtJctPot=1.0/model->DIOdepletionCapCoeff;
-        here->DIOtDepCap=model->DIOdepletionCapCoeff*here->DIOtJctPot;
-        SPfrontEnd->IFerrorf (ERR_WARNING,
-                "%s: junction potential VJ too large, limited to %f",
-                model->DIOmodName, here->DIOtJctPot);
-    }
-    /* limit sidewall junction potential to max of 1/FCS */
-    if(here->DIOtDepSWCap > 1.0) {
-        here->DIOtJctSWPot=1.0/model->DIOdepletionSWcapCoeff;
-        here->DIOtDepSWCap=model->DIOdepletionSWcapCoeff*here->DIOtJctSWPot;
-        SPfrontEnd->IFerrorf (ERR_WARNING,
-                "%s: junction potential VJS too large, limited to %f",
-                model->DIOmodName, here->DIOtJctSWPot);
-    }
-
     /* and now to compute the breakdown voltage, again, using
      * temperature adjusted basic parameters */
     if (model->DIObreakdownVoltageGiven){