Qucs-core  0.0.19
bjt.h
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00001 /*
00002  * bjt.h - bipolar junction transistor class definitions
00003  *
00004  * Copyright (C) 2004, 2005, 2006, 2008 Stefan Jahn <stefan@lkcc.org>
00005  *
00006  * This is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2, or (at your option)
00009  * any later version.
00010  *
00011  * This software is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this package; see the file COPYING.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  * $Id$
00022  *
00023  */
00024 
00025 #ifndef __BJT_H__
00026 #define __BJT_H__
00027 
00028 class bjt : public qucs::circuit
00029 {
00030  public:
00031   CREATOR (bjt);
00032   void calcSP (nr_double_t);
00033   void calcNoiseSP (nr_double_t);
00034   void initSP (void);
00035   void calcDC (void);
00036   void initDC (void);
00037   void restartDC (void);
00038   void saveOperatingPoints (void);
00039   void loadOperatingPoints (void);
00040   void calcOperatingPoints (void);
00041   void initAC (void);
00042   void calcAC (nr_double_t);
00043   void calcNoiseAC (nr_double_t);
00044   void initTR (void);
00045   void calcTR (nr_double_t);
00046 
00047  private:
00048   void initModel (void);
00049   void processCbcx (void);
00050   qucs::matrix calcMatrixY (nr_double_t);
00051   qucs::matrix calcMatrixCy (nr_double_t);
00052   void excessPhase (int, nr_double_t&, nr_double_t&);
00053 
00054  private:
00055   nr_double_t Ucs, Ubx, Ube, Ubc, Uce, UbePrev, UbcPrev;
00056   qucs::circuit * re;
00057   qucs::circuit * rc;
00058   qucs::circuit * rb;
00059   qucs::circuit * cbcx;
00060   nr_double_t dQbedUbc, dQbdUbe, dQbdUbc, If, Qb, Ir, It;
00061   nr_double_t gbei, gben, gbci, gbcn, gitf, gitr, gif, gir, Rbb, Ibe;
00062   nr_double_t Qbe, Qbci, Qbcx, Qcs;
00063   bool doTR;
00064 };
00065 
00066 #endif /* __BJT_H__ */