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Qucs-core
0.0.19
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00001 /* 00002 * gyrator.cpp - gyrator class implementation 00003 * 00004 * Copyright (C) 2004, 2005, 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 "gyrator.h" 00031 00032 using namespace qucs; 00033 00034 gyrator::gyrator () : circuit (4) { 00035 type = CIR_GYRATOR; 00036 #if AUGMENTED 00037 setVoltageSources (2); 00038 #endif 00039 } 00040 00041 void gyrator::initSP (void) { 00042 nr_double_t R = getPropertyDouble ("R"); 00043 nr_double_t z = getPropertyDouble ("Zref"); 00044 nr_double_t r = R / z; 00045 nr_double_t s1 = r * r / (r * r + 4.0); 00046 nr_double_t s2 = 2.0 * r / (r * r + 4.0); 00047 allocMatrixS (); 00048 setS (NODE_1, NODE_1, s1); setS (NODE_2, NODE_2, s1); 00049 setS (NODE_3, NODE_3, s1); setS (NODE_4, NODE_4, s1); 00050 setS (NODE_1, NODE_4, 1.0 - s1); 00051 setS (NODE_2, NODE_3, 1.0 - s1); 00052 setS (NODE_3, NODE_2, 1.0 - s1); 00053 setS (NODE_4, NODE_1, 1.0 - s1); 00054 setS (NODE_1, NODE_2, +s2); setS (NODE_2, NODE_4, +s2); 00055 setS (NODE_3, NODE_1, +s2); setS (NODE_4, NODE_3, +s2); 00056 setS (NODE_1, NODE_3, -s2); setS (NODE_2, NODE_1, -s2); 00057 setS (NODE_3, NODE_4, -s2); setS (NODE_4, NODE_2, -s2); 00058 } 00059 00060 void gyrator::initDC (void) { 00061 nr_double_t r = getPropertyDouble ("R"); 00062 allocMatrixMNA (); 00063 #if AUGMENTED 00064 setB (NODE_1, VSRC_1, +1.0); setB (NODE_2, VSRC_1, +0.0); 00065 setB (NODE_3, VSRC_1, +0.0); setB (NODE_4, VSRC_1, -1.0); 00066 setB (NODE_2, VSRC_1, +0.0); setB (NODE_2, VSRC_2, +1.0); 00067 setB (NODE_3, VSRC_2, -1.0); setB (NODE_4, VSRC_2, +0.0); 00068 setC (VSRC_1, NODE_1, +0.0); setC (VSRC_1, NODE_2, +1/r); 00069 setC (VSRC_1, NODE_3, -1/r); setC (VSRC_1, NODE_4, +0.0); 00070 setC (VSRC_2, NODE_1, -1/r); setC (VSRC_2, NODE_2, +0.0); 00071 setC (VSRC_2, NODE_3, +0.0); setC (VSRC_2, NODE_4, +1/r); 00072 setD (VSRC_1, VSRC_1, -1.0); setD (VSRC_2, VSRC_2, -1.0); 00073 setD (VSRC_1, VSRC_2, +0.0); setD (VSRC_2, VSRC_1, +0.0); 00074 setE (VSRC_1, +0.0); 00075 setE (VSRC_2, +0.0); 00076 #else 00077 setY (NODE_1, NODE_2, +1/r); setY (NODE_1, NODE_3, -1/r); 00078 setY (NODE_2, NODE_1, -1/r); setY (NODE_2, NODE_4, +1/r); 00079 setY (NODE_3, NODE_1, +1/r); setY (NODE_3, NODE_4, -1/r); 00080 setY (NODE_4, NODE_2, -1/r); setY (NODE_4, NODE_3, +1/r); 00081 #endif 00082 } 00083 00084 void gyrator::initAC (void) { 00085 initDC (); 00086 } 00087 00088 void gyrator::initTR (void) { 00089 initDC (); 00090 } 00091 00092 // properties 00093 PROP_REQ [] = { 00094 { "R", PROP_REAL, { 50, PROP_NO_STR }, PROP_NO_RANGE }, PROP_NO_PROP }; 00095 PROP_OPT [] = { 00096 { "Zref", PROP_REAL, { 50, PROP_NO_STR }, PROP_POS_RANGE }, 00097 PROP_NO_PROP }; 00098 struct define_t gyrator::cirdef = 00099 { "Gyrator", 4, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };
1.7.6.1