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48 lines
1.4 KiB
48 lines
1.4 KiB
/**********
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Copyright 1990 Regents of the University of California. All rights reserved.
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Author: 1985 Thomas L. Quarles
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**********/
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#include "ngspice/ngspice.h"
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#include "ngspice/cktdefs.h"
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#include "ngspice/complex.h"
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#include "ngspice/sperror.h"
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#include "vsrcdefs.h"
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#include "ngspice/suffix.h"
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/* ARGSUSED */
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int
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VSRCpzLoad(GENmodel *inModel, CKTcircuit *ckt, SPcomplex *s)
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{
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VSRCmodel *model = (VSRCmodel *)inModel;
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VSRCinstance *here;
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NG_IGNORE(s);
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NG_IGNORE(ckt);
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for( ; model != NULL; model = VSRCnextModel(model)) {
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/* loop through all the instances of the model */
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for (here = VSRCinstances(model); here != NULL ;
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here=VSRCnextInstance(here)) {
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if (!(here->VSRCacGiven)) {
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/*a dc source*/
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/*the connecting nodes are shorted*/
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*(here->VSRCposIbrPtr) += 1.0 ;
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*(here->VSRCnegIbrPtr) += -1.0 ;
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*(here->VSRCibrPosPtr) += 1.0 ;
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*(here->VSRCibrNegPtr) += -1.0 ;
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} else {
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/*an ac source*/
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/*no effective contribution
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*diagonal element made 1
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*/
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*(here->VSRCposIbrPtr) += 1.0 ;
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*(here->VSRCnegIbrPtr) += -1.0 ;
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*(here->VSRCibrIbrPtr) += 1.0 ;
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}
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}
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}
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return(OK);
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}
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