Qucs-core
0.0.19
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00001 /* 00002 * iac.cpp - AC current source class implementation 00003 * 00004 * Copyright (C) 2004, 2006, 2007, 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 "iac.h" 00031 00032 using namespace qucs; 00033 00034 iac::iac () : circuit (2) { 00035 type = CIR_IAC; 00036 setISource (true); 00037 } 00038 00039 void iac::initSP (void) { 00040 allocMatrixS (); 00041 setS (NODE_1, NODE_1, 1.0); 00042 setS (NODE_1, NODE_2, 0.0); 00043 setS (NODE_2, NODE_1, 0.0); 00044 setS (NODE_2, NODE_2, 1.0); 00045 } 00046 00047 void iac::initDC (void) { 00048 allocMatrixMNA (); 00049 clearI (); 00050 } 00051 00052 void iac::initAC (void) { 00053 nr_double_t a = getPropertyDouble ("I"); 00054 nr_double_t p = getPropertyDouble ("Phase"); 00055 nr_complex_t i = qucs::polar (a, deg2rad (p)); 00056 allocMatrixMNA (); 00057 setI (NODE_1, +i); setI (NODE_2, -i); 00058 } 00059 00060 void iac::calcTR (nr_double_t t) { 00061 nr_double_t f = getPropertyDouble ("f"); 00062 nr_double_t p = getPropertyDouble ("Phase"); 00063 nr_double_t d = getPropertyDouble ("Theta"); 00064 nr_double_t a = getPropertyDouble ("I"); 00065 nr_double_t s = getNet()->getSrcFactor (); 00066 nr_double_t o = 2 * pi * f; 00067 nr_double_t T = p / f / 360; 00068 nr_double_t i = s * a * std::exp (-(t + T) * d * f) * std::sin (o * t + deg2rad (p)); 00069 setI (NODE_1, +i); setI (NODE_2, -i); 00070 } 00071 00072 // properties 00073 PROP_REQ [] = { 00074 { "I", PROP_REAL, { 1e-3, PROP_NO_STR }, PROP_NO_RANGE }, PROP_NO_PROP }; 00075 PROP_OPT [] = { 00076 { "Phase", PROP_REAL, { 0, PROP_NO_STR }, PROP_RNGII (-360, 360) }, 00077 { "Theta", PROP_REAL, { 0, PROP_NO_STR }, PROP_POS_RANGE }, 00078 { "f", PROP_REAL, { 1e9, PROP_NO_STR }, PROP_POS_RANGE }, 00079 PROP_NO_PROP }; 00080 struct define_t iac::cirdef = 00081 { "Iac", 2, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };