Qucs-core
0.0.19
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00001 /* 00002 * vpm.cpp - PM modulated AC voltage source class implementation 00003 * 00004 * Copyright (C) 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 "vpm.h" 00031 00032 using namespace qucs; 00033 00034 vpm::vpm () : circuit (3) { 00035 type = CIR_VPM; 00036 setVSource (true); 00037 setVoltageSources (1); 00038 } 00039 00040 void vpm::initSP (void) { 00041 allocMatrixS (); 00042 setS (NODE_1, NODE_2, 1.0); 00043 setS (NODE_2, NODE_1, 1.0); 00044 setS (NODE_3, NODE_3, 1.0); 00045 } 00046 00047 void vpm::initDC (void) { 00048 allocMatrixMNA (); 00049 voltageSource (VSRC_1, NODE_1, NODE_2); 00050 } 00051 00052 void vpm::initAC (void) { 00053 initDC (); 00054 nr_double_t a = getPropertyDouble ("U"); 00055 nr_double_t p = getPropertyDouble ("Phase"); 00056 setE (VSRC_1, qucs::polar (a, deg2rad (p))); 00057 } 00058 00059 void vpm::initTR (void) { 00060 initDC (); 00061 } 00062 00063 void vpm::calcTR (nr_double_t t) { 00064 nr_double_t f = getPropertyDouble ("f"); 00065 nr_double_t p = getPropertyDouble ("Phase"); 00066 nr_double_t d = getPropertyDouble ("M") * 2 * pi; 00067 nr_double_t a = getPropertyDouble ("U"); 00068 nr_double_t v = real (getV (NODE_3)); 00069 nr_double_t b = 2 * pi * f * t + deg2rad (p) + v * d; 00070 nr_double_t u = a * std::sin (b); 00071 nr_double_t g = a * std::cos (b) * d; 00072 setE (VSRC_1, g * v - u); 00073 setC (VSRC_1, NODE_3, g); 00074 } 00075 00076 // properties 00077 PROP_REQ [] = { 00078 { "U", PROP_REAL, { 1, PROP_NO_STR }, PROP_NO_RANGE }, 00079 { "f", PROP_REAL, { 1e9, PROP_NO_STR }, PROP_POS_RANGE }, 00080 { "M", PROP_REAL, { 1, PROP_NO_STR }, PROP_RNGII (0, 1) }, 00081 PROP_NO_PROP }; 00082 PROP_OPT [] = { 00083 { "Phase", PROP_REAL, { 0, PROP_NO_STR }, PROP_RNGII (-360, 360) }, 00084 PROP_NO_PROP }; 00085 struct define_t vpm::cirdef = 00086 { "PM_Mod", 3, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };