Qucs-core
0.0.19
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00001 /* 00002 * ccvs.cpp - ccvs class implementation 00003 * 00004 * Copyright (C) 2003, 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 #if HAVE_CONFIG_H 00026 # include <config.h> 00027 #endif 00028 00029 #include "component.h" 00030 #include "ccvs.h" 00031 00032 using namespace qucs; 00033 00034 ccvs::ccvs () : circuit (4) { 00035 type = CIR_CCVS; 00036 setVoltageSources (2); 00037 } 00038 00039 void ccvs::calcSP (nr_double_t frequency) { 00040 00041 nr_double_t g = getPropertyDouble ("G") / z0; 00042 nr_double_t t = getPropertyDouble ("T"); 00043 00044 nr_complex_t z1 = qucs::polar (g / 2.0, pi - 2.0 * pi * frequency * t); 00045 nr_complex_t z2 = qucs::polar (g / 2.0, - 2.0 * pi * frequency * t); 00046 00047 setS (NODE_1, NODE_1, 0.0); setS (NODE_1, NODE_2, 0.0); 00048 setS (NODE_1, NODE_3, 0.0); setS (NODE_1, NODE_4, 1.0); 00049 setS (NODE_2, NODE_1, z2); setS (NODE_2, NODE_2, 0.0); 00050 setS (NODE_2, NODE_3, 1.0); setS (NODE_2, NODE_4, z1); 00051 setS (NODE_3, NODE_1, z1); setS (NODE_3, NODE_2, 1.0); 00052 setS (NODE_3, NODE_3, 0.0); setS (NODE_3, NODE_4, z2); 00053 setS (NODE_4, NODE_1, 1.0); setS (NODE_4, NODE_2, 0.0); 00054 setS (NODE_4, NODE_3, 0.0); setS (NODE_4, NODE_4, 0.0); 00055 } 00056 00057 void ccvs::initDC (void) { 00058 allocMatrixMNA (); 00059 setB (NODE_1, VSRC_1, +1.0); setB (NODE_2, VSRC_1, +0.0); 00060 setB (NODE_3, VSRC_1, +0.0); setB (NODE_4, VSRC_1, -1.0); 00061 setB (NODE_1, VSRC_2, +0.0); setB (NODE_2, VSRC_2, -1.0); 00062 setB (NODE_3, VSRC_2, +1.0); setB (NODE_4, VSRC_2, +0.0); 00063 setC (VSRC_1, NODE_1, +0.0); setC (VSRC_1, NODE_2, +1.0); 00064 setC (VSRC_1, NODE_3, -1.0); setC (VSRC_1, NODE_4, +0.0); 00065 setC (VSRC_2, NODE_1, +1.0); setC (VSRC_2, NODE_2, +0.0); 00066 setC (VSRC_2, NODE_3, +0.0); setC (VSRC_2, NODE_4, -1.0); 00067 setD (VSRC_1, VSRC_1, - getPropertyDouble ("G")); 00068 setD (VSRC_2, VSRC_2, 0.0); 00069 setD (VSRC_1, VSRC_2, 0.0); setD (VSRC_2, VSRC_1, 0.0); 00070 setE (VSRC_1, 0.0); 00071 setE (VSRC_2, 0.0); 00072 } 00073 00074 void ccvs::initAC (void) { 00075 initDC (); 00076 } 00077 00078 void ccvs::calcAC (nr_double_t frequency) { 00079 nr_double_t t = getPropertyDouble ("T"); 00080 nr_complex_t g = qucs::polar (getPropertyDouble ("G"), 00081 - 2.0 * pi * frequency * t); 00082 setD (VSRC_1, VSRC_1, -g); 00083 } 00084 00085 void ccvs::initTR (void) { 00086 nr_double_t t = getPropertyDouble ("T"); 00087 initDC (); 00088 deleteHistory (); 00089 if (t > 0.0) { 00090 setHistory (true); 00091 initHistory (t); 00092 setC (VSRC_2, NODE_1, +0.0); setC (VSRC_2, NODE_2, +1.0); 00093 setC (VSRC_2, NODE_3, -1.0); setC (VSRC_2, NODE_4, +0.0); 00094 setC (VSRC_1, NODE_1, +1.0); setC (VSRC_1, NODE_2, +0.0); 00095 setC (VSRC_1, NODE_3, +0.0); setC (VSRC_1, NODE_4, -1.0); 00096 setD (VSRC_1, VSRC_1, 0.0); 00097 } 00098 } 00099 00100 void ccvs::calcTR (nr_double_t t) { 00101 nr_double_t T = getPropertyDouble ("T"); 00102 if (T > 0.0) { 00103 T = t - T; 00104 nr_double_t g = getPropertyDouble ("G"); 00105 nr_double_t i = getJ (VSRC_1, T); 00106 setE (VSRC_2, g * i); 00107 } 00108 } 00109 00110 // properties 00111 PROP_REQ [] = { 00112 { "G", PROP_REAL, { 1, PROP_NO_STR }, PROP_NO_RANGE }, PROP_NO_PROP }; 00113 PROP_OPT [] = { 00114 { "T", PROP_REAL, { 0, PROP_NO_STR }, PROP_POS_RANGE }, PROP_NO_PROP }; 00115 struct define_t ccvs::cirdef = 00116 { "CCVS", 4, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };