Qucs-core  0.0.19
strafo.cpp
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00001 /*
00002  * strafo.cpp - symmetrical trafo class implementation
00003  *
00004  * Copyright (C) 2003, 2004, 2005, 2008, 2011 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 #if HAVE_CONFIG_H
00026 # include <config.h>
00027 #endif
00028 
00029 #include "component.h"
00030 #include "strafo.h"
00031 
00032 using namespace qucs;
00033 
00034 strafo::strafo () : circuit (6) {
00035   type = CIR_STRAFO;
00036 }
00037 
00038 void strafo::initSP (void) {
00039 
00040   nr_double_t t1 = getPropertyDouble ("T1");
00041   nr_double_t t2 = getPropertyDouble ("T2");
00042 
00043   nr_double_t  d = t1 * t1 + t2 * t2 + 1.0;
00044   nr_double_t z1 = t1 * t1 / d;
00045   nr_double_t z2 = t2 * t2 / d;
00046   nr_double_t z3 = 1.0 / d;
00047   nr_double_t z4 = t1 / d;
00048   nr_double_t z5 = t2 / d;
00049   nr_double_t z6 = t1 * t2 / d;
00050 
00051   allocMatrixS ();
00052 
00053   setS (NODE_1, NODE_1,  z1);    setS (NODE_1, NODE_2, z4);
00054   setS (NODE_1, NODE_3, -z4);    setS (NODE_1, NODE_4, -z6);
00055   setS (NODE_1, NODE_5, z6);     setS (NODE_1, NODE_6, 1 - z1);
00056   setS (NODE_2, NODE_1,  z4);    setS (NODE_2, NODE_2, z3);
00057   setS (NODE_2, NODE_3, 1 - z3); setS (NODE_2, NODE_4, -z5);
00058   setS (NODE_2, NODE_5, z5);     setS (NODE_2, NODE_6, -z4);
00059   setS (NODE_3, NODE_1, -z4);    setS (NODE_3, NODE_2, 1 - z3);
00060   setS (NODE_3, NODE_3, z3);     setS (NODE_3, NODE_4,  z5);
00061   setS (NODE_3, NODE_5, -z5);    setS (NODE_3, NODE_6, z4);
00062   setS (NODE_4, NODE_1, -z6);    setS (NODE_4, NODE_2, -z5);
00063   setS (NODE_4, NODE_3, z5);     setS (NODE_4, NODE_4,  z2);
00064   setS (NODE_4, NODE_5, 1 - z2); setS (NODE_4, NODE_6, z6);
00065   setS (NODE_5, NODE_1,  z6);    setS (NODE_5, NODE_2, z5);
00066   setS (NODE_5, NODE_3, -z5);    setS (NODE_5, NODE_4, 1 - z2);
00067   setS (NODE_5, NODE_5, z2);     setS (NODE_5, NODE_6, -z6);
00068   setS (NODE_6, NODE_1, 1 - z1); setS (NODE_6, NODE_2, -z4);
00069   setS (NODE_6, NODE_3, z4);     setS (NODE_6, NODE_4, z6);
00070   setS (NODE_6, NODE_5, -z6);    setS (NODE_6, NODE_6, z1);
00071 }
00072 
00073 void strafo::initDC (void) {
00074   setVoltageSources (3);
00075   allocMatrixMNA ();
00076   voltageSource (VSRC_1, NODE_1, NODE_6);
00077   voltageSource (VSRC_2, NODE_5, NODE_4);
00078   voltageSource (VSRC_3, NODE_2, NODE_3);
00079 }
00080 
00081 void strafo::initAC (void) {
00082   nr_double_t t1 = getPropertyDouble ("T1");
00083   nr_double_t t2 = getPropertyDouble ("T2");
00084 
00085   setVoltageSources (2);
00086   allocMatrixMNA ();
00087 
00088   setB (NODE_1, VSRC_1, -1.0); setB (NODE_2, VSRC_1, + t1);
00089   setB (NODE_3, VSRC_1, - t1); setB (NODE_4, VSRC_1, +0.0);
00090   setB (NODE_5, VSRC_1, +0.0); setB (NODE_6, VSRC_1, +1.0);
00091   setB (NODE_1, VSRC_2, +0.0); setB (NODE_2, VSRC_2, + t2);
00092   setB (NODE_3, VSRC_2, - t2); setB (NODE_4, VSRC_2, +1.0);
00093   setB (NODE_5, VSRC_2, -1.0); setB (NODE_6, VSRC_2, +0.0);
00094 
00095   setC (VSRC_1, NODE_1, +1.0); setC (VSRC_1, NODE_2, - t1);
00096   setC (VSRC_1, NODE_3, + t1); setC (VSRC_1, NODE_4, +0.0);
00097   setC (VSRC_1, NODE_5, +0.0); setC (VSRC_1, NODE_6, -1.0);
00098   setC (VSRC_2, NODE_1, +0.0); setC (VSRC_2, NODE_2, - t2);
00099   setC (VSRC_2, NODE_3, + t2); setC (VSRC_2, NODE_4, -1.0);
00100   setC (VSRC_2, NODE_5, +1.0); setC (VSRC_2, NODE_6, +0.0);
00101 
00102   setD (VSRC_1, VSRC_1, 0); setD (VSRC_2, VSRC_2, 0);
00103   setD (VSRC_1, VSRC_2, 0); setD (VSRC_2, VSRC_1, 0);
00104   setE (VSRC_1, 0.0);
00105   setE (VSRC_2, 0.0);
00106 }
00107 
00108 void strafo::initTR (void) {
00109   initAC ();
00110 }
00111 
00112 // properties
00113 PROP_REQ [] = {
00114   { "T1", PROP_REAL, { 1, PROP_NO_STR }, PROP_POS_RANGE },
00115   { "T2", PROP_REAL, { 1, PROP_NO_STR }, PROP_POS_RANGE },
00116   PROP_NO_PROP };
00117 PROP_OPT [] = {
00118   PROP_NO_PROP };
00119 struct define_t strafo::cirdef =
00120   { "sTr", 6, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };