Qucs-core  0.0.19
inverter.cpp
Go to the documentation of this file.
00001 /*
00002  * inverter.cpp - logical inverter class implementation
00003  *
00004  * Copyright (C) 2005, 2006, 2008, 2009 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 "digital.h"
00031 #include "inverter.h"
00032 
00033 using namespace qucs;
00034 
00035 inverter::inverter () : digital () {
00036   type = CIR_INVERTER;
00037   setSize (2);
00038 }
00039 
00040 void inverter::calcOutput (void) {
00041   nr_double_t v = getPropertyDouble ("V");
00042   Vout = v / 2 * (1 - calcTransferX (0));
00043 }
00044 
00045 void inverter::calcDerivatives (void) {
00046   g[0] = - 0.5 * calcDerivativeX (0);
00047 }
00048 
00049 // properties
00050 PROP_REQ [] = {
00051   { "V", PROP_REAL, { 1, PROP_NO_STR }, PROP_POS_RANGE }, PROP_NO_PROP };
00052 PROP_OPT [] = {
00053   { "t", PROP_REAL, { 0, PROP_NO_STR }, PROP_POS_RANGE },
00054   { "TR", PROP_REAL, { 10, PROP_NO_STR }, PROP_RNGII (1, 100) },
00055   PROP_NO_PROP };
00056 struct define_t inverter::cirdef =
00057   { "Inv", 2, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_NONLINEAR, PROP_DEF };