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/*$Id: d_cap.cc,v 26.137 2010/04/10 02:37:05 al Exp $ -*- 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.
*------------------------------------------------------------------
* capacitance devices:
* self-capacitance (C device)
* trans-capacitance (non-spice charge transfer device)
*------------------------------------------------------------------
* capacitor models
* y.x = volts, y.f0 = coulombs, ev = y.f1 = farads
* q = y history in time
* i.x = volts, i.f0 = amps, i.f1 = mhos
* m.x = volts, m.c0 = amps, acg = m.c1 = mhos
*/
//testing=script 2006.07.17
#include "globals.h"
#include "e_storag.h"
/*--------------------------------------------------------------------------*/
namespace {
/*--------------------------------------------------------------------------*/
class DEV_CAPACITANCE : public STORAGE {
protected:
explicit DEV_CAPACITANCE(const DEV_CAPACITANCE& p) :STORAGE(p) {}
public:
explicit DEV_CAPACITANCE() :STORAGE() {}
protected: // override virtual
char id_letter()const override {return 'C';}
std::string value_name()const override{return "c";}
std::string dev_type()const override {return "capacitor";}
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 has_iv_probe()const override {return true;}
bool use_obsolete_callback_parse()const override {return true;}
CARD* clone()const override {return new DEV_CAPACITANCE(*this);}
void tr_iwant_matrix()override {tr_iwant_matrix_passive();}
bool do_tr()override;
void tr_load()override {tr_load_passive();}
void tr_unload()override {tr_unload_passive();}
double tr_involts()const override {return tr_outvolts();}
double tr_involts_limited()const override {return tr_outvolts_limited();}
double tr_probe_num(const std::string&)const override;
void ac_iwant_matrix()override {ac_iwant_matrix_passive();}
void ac_begin()override {STORAGE::ac_begin(); _ev = _y[0].f1;}
void do_ac()override;
void ac_load()override {ac_load_passive();}
COMPLEX ac_involts()const override {itested();return ac_outvolts();}
std::string port_name(int i)const override {
assert(i >= 0);
assert(i < 2);
static std::string names[] = {"p", "n"};
return names[i];
}
};
/*--------------------------------------------------------------------------*/
class DEV_TRANSCAP : public DEV_CAPACITANCE {
private:
explicit DEV_TRANSCAP(const DEV_TRANSCAP& p) :DEV_CAPACITANCE(p){}
public:
explicit DEV_TRANSCAP() :DEV_CAPACITANCE() {}
private: // override virtual
char id_letter()const override {untested();return '\0';}
std::string value_name()const override{untested(); return "c";}
std::string dev_type()const override {return "tcap";}
int max_nodes()const override {return 4;}
int min_nodes()const override {return 4;}
int matrix_nodes()const override {return 4;}
int net_nodes()const override {return 4;}
bool has_iv_probe()const override {untested(); return false;}
bool f_is_value()const override {untested();return true;}
CARD* clone()const override {return new DEV_TRANSCAP(*this);}
void tr_iwant_matrix()override {tr_iwant_matrix_active();}
void tr_load()override {tr_load_active();}
double tr_involts()const override {return dn_diff(_n[IN1].v0(),_n[IN2].v0());}
double tr_involts_limited()const override {return volts_limited(_n[IN1],_n[IN2]);}
void ac_iwant_matrix()override {ac_iwant_matrix_active();}
void ac_load()override {untested(); ac_load_active();}
std::string port_name(int i)const override {untested();
assert(i >= 0);
assert(i < 4);
static std::string names[] = {"p", "n", "ps", "ns"};
return names[i];
}
};
/*--------------------------------------------------------------------------*/
//BUG// doesn't model dynamic effects of control.
class DEV_VCCAP : public DEV_CAPACITANCE {
private:
explicit DEV_VCCAP(const DEV_VCCAP& p) :DEV_CAPACITANCE(p) {}
public:
explicit DEV_VCCAP() :DEV_CAPACITANCE() {}
private: // override virtual
char id_letter()const override {untested();return '\0';}
std::string value_name()const override{untested(); return "c";}
std::string dev_type()const override {return "vccap";}
int max_nodes()const override {return 4;}
int min_nodes()const override {return 4;}
int matrix_nodes()const override {return 4;}
int net_nodes()const override {return 4;}
bool has_iv_probe()const override {untested(); return false;}
bool f_is_value()const override {untested();return true;}
CARD* clone()const override {return new DEV_VCCAP(*this);}
void tr_iwant_matrix()override {tr_iwant_matrix_extended();}
bool do_tr()override;
double tr_involts()const override {return dn_diff(_n[IN1].v0(),_n[IN2].v0());}
double tr_involts_limited()const override {return volts_limited(_n[IN1],_n[IN2]);}
void ac_iwant_matrix()override {ac_iwant_matrix_extended();}
std::string port_name(int i)const override {untested();
assert(i >= 0);
assert(i < 4);
static std::string names[] = {"p", "n", "ps", "ns"};
return names[i];
}
};
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
bool DEV_CAPACITANCE::do_tr()
{
if (using_tr_eval()) {
_y[0].x = tr_input_limited();
tr_eval();
}else{
_y[0].x = tr_input(); // tr_involts();
assert(_y[0].f1 == value());
_y[0].f0 = _y[0].x * _y[0].f1;
assert(converged());
}
store_values();
q_load();
trace3("q", _y[0].x, _y[0].f0, _y[0].f1);
_i[0] = differentiate(_y, _i, _time, _method_a);
trace3("i", _i[0].x, _i[0].f0, _i[0].f1);
_m0 = CPOLY1(_i[0]);
return converged();
}
/*--------------------------------------------------------------------------*/
void DEV_CAPACITANCE::do_ac()
{
if (using_ac_eval()) {
ac_eval();
}else{
assert(_ev == _y[0].f1);
assert(has_tr_eval() || _ev == double(value()));
}
_acg = _ev * _sim->_jomega;
}
/*--------------------------------------------------------------------------*/
double DEV_CAPACITANCE::tr_probe_num(const std::string& x)const
{
if (Umatch(x, "q{cap} |ch{arge} ")) {
return _y[0].f0;
}else if (Umatch(x, "c{apacitance} ")) {
return _y[0].f1;
}else if (Umatch(x, "dcdt ")) {untested();
return (_y[0].f1 - _y[1].f1) / _dt;
}else if (Umatch(x, "dc ")) {untested();
return (_y[0].f1 - _y[1].f1);
}else if (Umatch(x, "dqdt ")) {
return (_y[0].f0 - _y[1].f0) / _dt;
}else if (Umatch(x, "dq ")) {
return (_y[0].f0 - _y[1].f0);
}else{
return STORAGE::tr_probe_num(x);
}
}
/*--------------------------------------------------------------------------*/
bool DEV_VCCAP::do_tr()
{
_y[0].x = tr_input_limited();
tr_eval();
store_values();
q_load();
_y[0].x = tr_outvolts();
_y[0].f1 = _y[0].f0; // self capacitance
_y[0].f0 = _y[0].x * _y[0].f1; // charge
_i[0] = differentiate(_y, _i, _time, _method_a);
_m0.x = _i[0].x;
_m0.c1 = _i[0].f1;
_m0.c0 = _i[0].f0 - _i[0].x * _i[0].f1;
return converged();
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
DEV_CAPACITANCE p1;
DEV_TRANSCAP p2;
DEV_VCCAP p3;
DISPATCHER<CARD>::INSTALL
d1(&device_dispatcher, "C|capacitor", &p1),
d2(&device_dispatcher, "tcap|tcapacitor", &p2),
d3(&device_dispatcher, "vccap", &p3);
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
// vim:ts=8:sw=2:noet:
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