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/*$Id: d_cs.cc 2016/03/25 al $ -*- C++ -*-
* Copyright (C) 2001 Albert Davis
* Author: Albert Davis <aldavis@gnu.org>
*
* This file is part of "Gnucap", the Gnu Circuit Analysis Package
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*------------------------------------------------------------------
* functions for fixed current source
* x = 0, y.f0 = nothing, ev = y.f1 = amps.
*/
//testing=script 2006.07.17
#include "globals.h"
#include "e_elemnt.h"
/*--------------------------------------------------------------------------*/
namespace {
/*--------------------------------------------------------------------------*/
class DEV_CS : public ELEMENT {
private:
explicit DEV_CS(const DEV_CS& p) :ELEMENT(p) {}
public:
explicit DEV_CS() :ELEMENT() {}
private: // override virtual
char id_letter()const override {return 'I';}
std::string value_name()const override{itested(); return "dc";}
std::string dev_type()const override {return "isource";}
int max_nodes()const override {return 2;}
int min_nodes()const override {return 2;}
int matrix_nodes()const override {return 2;}
int net_nodes()const override {return 2;}
bool is_source()const override {return true;}
bool f_is_value()const override {return true;}
bool has_iv_probe()const override {return true;}
bool use_obsolete_callback_parse()const override {return true;}
CARD* clone()const override {return new DEV_CS(*this);}
void precalc_last()override;
void dc_advance()override;
void tr_iwant_matrix()override {/* nothing */}
void tr_begin()override;
bool do_tr()override;
void tr_load()override {tr_load_source();}
void tr_unload()override {untested();tr_unload_source();}
double tr_involts()const override {return 0.;}
double tr_involts_limited()const override {unreachable(); return 0.;}
void ac_iwant_matrix()override {/* nothing */}
void ac_begin()override {_acg = _ev = 0.;}
void do_ac()override;
void ac_load()override {ac_load_source();}
COMPLEX ac_involts()const override {untested();return 0.;}
COMPLEX ac_amps()const override {return _acg;}
std::string port_name(int i)const override {
assert(i >= 0);
assert(i < 2);
static std::string names[] = {"p", "n"};
return names[i];
}
};
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
void DEV_CS::precalc_last()
{
ELEMENT::precalc_last();
set_constant(!using_tr_eval());
set_converged(!has_tr_eval());
}
/*--------------------------------------------------------------------------*/
void DEV_CS::dc_advance()
{
ELEMENT::dc_advance();
if(using_tr_eval()){
}else{
_y[0].f1 = value();
if(_y1.f1 != _y[0].f1){
store_values();
q_load();
_m0.c0 = _y[0].f1;
// set_constant(false); not needed. nothing to do in do_tr.
}else{
}
}
}
/*--------------------------------------------------------------------------*/
void DEV_CS::tr_begin()
{
ELEMENT::tr_begin();
_y[0].x = 0.;
_y[0].f1 = value();
_y1.f0 = _y[0].f0 = 0.; //BUG// override
_m0.x = 0.;
_m0.c0 = _y[0].f1;
_m0.c1 = 0.;
_m1 = _m0;
assert(_loss0 == 0.);
assert(_loss1 == 0.);
}
/*--------------------------------------------------------------------------*/
bool DEV_CS::do_tr()
{
assert(_m0.x == 0.);
if (using_tr_eval()) {
_y[0].x = _sim->_time0;
tr_eval();
store_values();
q_load();
_m0.c0 = _y[0].f1;
assert(_m0.c1 == 0.);
}else{
assert(_y[0].x == 0.);
assert(_y[0].f0 == 0.);
assert(_y[0].f1 == value());
assert(_m0.x == 0.);
assert(_m0.c0 == _y[0].f1);
assert(_m0.c1 == 0.);
assert(_y1 == _y[0]);
assert(converged());
}
return converged();
}
/*--------------------------------------------------------------------------*/
void DEV_CS::do_ac()
{
if (using_ac_eval()) {
ac_eval();
_acg = _ev;
}else{itested();
assert(_acg == 0.);
}
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
DEV_CS p1;
DISPATCHER<CARD>::INSTALL d1(&device_dispatcher, "I|csource|isource", &p1);
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
// vim:ts=8:sw=2:noet:
|
