mirror of
https://github.com/ra3xdh/qucs_s
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209 lines
7.5 KiB
C++
209 lines
7.5 KiB
C++
/***************************************************************************
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bjt.cpp - description
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-------------------
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begin : Fri Jun 4 2004
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copyright : (C) 2003 by Michael Margraf
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email : michael.margraf@alumni.tu-berlin.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "bjt.h"
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BJT::BJT()
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{
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Description = QObject::tr("bipolar junction transistor");
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Lines.append(new Line(-10,-15,-10, 15,QPen(QPen::darkBlue,3)));
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Lines.append(new Line(-30, 0,-10, 0,QPen(QPen::darkBlue,2)));
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Lines.append(new Line(-10, -5, 0,-15,QPen(QPen::darkBlue,2)));
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Lines.append(new Line( 0,-15, 0,-30,QPen(QPen::darkBlue,2)));
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Lines.append(new Line(-10, 5, 0, 15,QPen(QPen::darkBlue,2)));
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Lines.append(new Line( 0, 15, 0, 30,QPen(QPen::darkBlue,2)));
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Lines.append(new Line( -6, 15, 0, 15,QPen(QPen::darkBlue,2)));
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Lines.append(new Line( 0, 9, 0, 15,QPen(QPen::darkBlue,2)));
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Ports.append(new Port(-30, 0));
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Ports.append(new Port( 0,-30));
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Ports.append(new Port( 0, 30));
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x1 = -30; y1 = -30;
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x2 = 4; y2 = 30;
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tx = x2+4;
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ty = y1+4;
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Model = "_BJT";
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Name = "T";
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// this must be the first property in the list !!!
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Props.append(new Property("Type", "npn", true,
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QObject::tr("polarity (npn,pnp)")));
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Props.append(new Property("Is", "1e-16", true,
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QObject::tr("saturation current")));
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Props.append(new Property("Nf", "1", true,
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QObject::tr("forward emission coefficient")));
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Props.append(new Property("Nr", "1", false,
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QObject::tr("reverse emission coefficient")));
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Props.append(new Property("Ikf", "0", false,
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QObject::tr("high current corner for forward beta")));
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Props.append(new Property("Ikr", "0", false,
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QObject::tr("high current corner for reverse beta")));
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Props.append(new Property("Vaf", "0", true,
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QObject::tr("forward early voltage")));
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Props.append(new Property("Var", "0", false,
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QObject::tr("reverse early voltage")));
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Props.append(new Property("Ise", "0", false,
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QObject::tr("base-emitter leakage saturation current")));
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Props.append(new Property("Ne", "1.5", false,
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QObject::tr("base-emitter leakage emission coefficient")));
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Props.append(new Property("Isc", "0", false,
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QObject::tr("base-collector leakage saturation current")));
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Props.append(new Property("Nc", "2", false,
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QObject::tr("base-collector leakage emission coefficient")));
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Props.append(new Property("Bf", "100", true,
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QObject::tr("forward beta")));
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Props.append(new Property("Br", "1", false,
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QObject::tr("reverse beta")));
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Props.append(new Property("Rbm", "0", false,
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QObject::tr("minimum base resistance for high currents")));
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Props.append(new Property("Irb", "0", false,
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QObject::tr("current for base resistance midpoint")));
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Props.append(new Property("Rc", "0", false,
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QObject::tr("collector ohmic resistance")));
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Props.append(new Property("Re", "0", false,
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QObject::tr("emitter ohmic resistance")));
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Props.append(new Property("Rb", "0", false,
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QObject::tr("zero-bias base resistance (may be high-current dependent)")));
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Props.append(new Property("Cje", "0", false,
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QObject::tr("base-emitter zero-bias depletion capacitance")));
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Props.append(new Property("Vje", "0.75", false,
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QObject::tr("base-emitter junction built-in potential")));
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Props.append(new Property("Mje", "0.33", false,
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QObject::tr("base-emitter junction exponential factor")));
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Props.append(new Property("Cjc", "0", false,
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QObject::tr("base-collector zero-bias depletion capacitance")));
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Props.append(new Property("Vjc", "0.75", false,
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QObject::tr("base-collector junction built-in potential")));
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Props.append(new Property("Mjc", "0.33", false,
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QObject::tr("base-collector junction exponential factor")));
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Props.append(new Property("Xcjc", "1.0", false,
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QObject::tr("fraction of Cjc that goes to internal base pin")));
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Props.append(new Property("Cjs", "0", false,
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QObject::tr("zero-bias collector-substrate capacitance")));
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Props.append(new Property("Vjs", "0.75", false,
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QObject::tr("substrate junction built-in potential")));
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Props.append(new Property("Mjs", "0", false,
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QObject::tr("substrate junction exponential factor")));
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Props.append(new Property("Fc", "0.5", false,
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QObject::tr("forward-bias depletion capacitance coefficient")));
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Props.append(new Property("Tf", "0.0", false,
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QObject::tr("ideal forward transit time")));
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Props.append(new Property("Xtf", "0.0", false,
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QObject::tr("coefficient of bias-dependence for Tf")));
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Props.append(new Property("Vtf", "0.0", false,
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QObject::tr("voltage dependence of Tf on base-collector voltage")));
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Props.append(new Property("Itf", "0.0", false,
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QObject::tr("high-current effect on Tf")));
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Props.append(new Property("Tr", "0.0", false,
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QObject::tr("ideal reverse transit time")));
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Props.append(new Property("Temp", "26.85", false,
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QObject::tr("simulation temperature in degree Celsius")));
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Props.append(new Property("Kf", "0.0", false,
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QObject::tr("flicker noise coefficient")));
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Props.append(new Property("Af", "1.0", false,
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QObject::tr("flicker noise exponent")));
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Props.append(new Property("Ffe", "1.0", false,
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QObject::tr("flicker noise frequency exponent")));
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Props.append(new Property("Kb", "0.0", false,
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QObject::tr("burst noise coefficient")));
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Props.append(new Property("Ab", "1.0", false,
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QObject::tr("burst noise exponent")));
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Props.append(new Property("Fb", "1.0", false,
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QObject::tr("burst noise corner frequency in Hertz")));
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}
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BJT::~BJT()
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{
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}
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Component* BJT::newOne()
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{
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BJT* p = new BJT();
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p->Props.getFirst()->Value = Props.getFirst()->Value;
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p->recreate();
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return p;
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}
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Component* BJT::info(QString& Name, char* &BitmapFile, bool getNewOne)
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{
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Name = QObject::tr("npn transistor");
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BitmapFile = "npn";
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if(getNewOne) return new BJT();
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return 0;
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}
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Component* BJT::info_pnp(QString& Name, char* &BitmapFile, bool getNewOne)
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{
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Name = QObject::tr("pnp transistor");
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BitmapFile = "pnp";
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if(getNewOne) {
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BJT* p = new BJT();
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p->Props.getFirst()->Value = "pnp";
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p->recreate();
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return p;
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}
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return 0;
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}
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// Makes the schematic symbol a npn or a pnp transistor (according
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// to the "Type" property).
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void BJT::recreate()
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{
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Line *pl2 = Lines.last();
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Line *pl1 = Lines.prev();
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if(Props.getFirst()->Value == "npn") {
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pl1->x1 = -6; pl1->y1 = 15; pl1->x2 = 0; pl1->y2 = 15;
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pl2->x1 = 0; pl2->y1 = 9; pl2->x2 = 0; pl2->y2 = 15;
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}
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else {
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pl1->x1 = -5; pl1->y1 = 10; pl1->x2 = -5; pl1->y2 = 16;
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pl2->x1 = -5; pl2->y1 = 10; pl2->x2 = 1; pl2->y2 = 10;
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}
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if(mirroredX) {
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pl1->y1 = -pl1->y1;
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pl1->y2 = -pl1->y2;
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pl2->y1 = -pl2->y1;
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pl2->y2 = -pl2->y2;
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}
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int tmp;
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for(int z=0; z<rotated; z++) {
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tmp = -pl1->x1;
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pl1->x1 = pl1->y1;
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pl1->y1 = tmp;
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tmp = -pl1->x2;
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pl1->x2 = pl1->y2;
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pl1->y2 = tmp;
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tmp = -pl2->x1;
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pl2->x1 = pl2->y1;
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pl2->y1 = tmp;
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tmp = -pl2->x2;
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pl2->x2 = pl2->y2;
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pl2->y2 = tmp;
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}
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}
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