Qucs-core
0.0.19
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00001 /* 00002 * vdc.cpp - DC voltage source class implementation 00003 * 00004 * Copyright (C) 2003, 2004, 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 "vdc.h" 00031 00032 using namespace qucs; 00033 00034 vdc::vdc () : circuit (2) { 00035 type = CIR_VDC; 00036 setVSource (true); 00037 setVoltageSources (1); 00038 } 00039 00040 void vdc::initSP (void) { 00041 allocMatrixS (); 00042 setS (NODE_1, NODE_1, 0.0); 00043 setS (NODE_1, NODE_2, 1.0); 00044 setS (NODE_2, NODE_1, 1.0); 00045 setS (NODE_2, NODE_2, 0.0); 00046 } 00047 00048 void vdc::initDC (void) { 00049 allocMatrixMNA (); 00050 voltageSource (VSRC_1, NODE_1, NODE_2, getPropertyDouble ("U")); 00051 } 00052 00053 void vdc::calcDC (void) { 00054 nr_double_t f = getNet()->getSrcFactor (); 00055 setE (VSRC_1, f * getPropertyDouble ("U")); 00056 } 00057 00058 void vdc::initTR (void) { 00059 initDC (); 00060 } 00061 00062 void vdc::initAC (void) { 00063 initDC (); 00064 setE (VSRC_1, 0.0); 00065 } 00066 00067 void vdc::initHB (void) { 00068 allocMatrixMNA (); 00069 voltageSource (VSRC_1, NODE_1, NODE_2); 00070 } 00071 00072 void vdc::calcHB (nr_double_t frequency) { 00073 if (frequency == 0.0) { 00074 setE (VSRC_1, getPropertyDouble ("U")); 00075 } else { 00076 setE (VSRC_1, 0); 00077 } 00078 } 00079 00080 // properties 00081 PROP_REQ [] = { 00082 { "U", PROP_REAL, { 1, PROP_NO_STR }, PROP_NO_RANGE }, PROP_NO_PROP }; 00083 PROP_OPT [] = { 00084 PROP_NO_PROP }; 00085 struct define_t vdc::cirdef = 00086 { "Vdc", 2, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };