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/*$Id: d_ccvs.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.
*------------------------------------------------------------------
* functions for ccvs
* It is really voltage controlled, taking into account the sense element.
* Then adjust the gain to account for the sense element.
*/
//testing=script 2006.07.17
#include "globals.h"
#include "e_ccsrc.h"
/*--------------------------------------------------------------------------*/
namespace {
/*--------------------------------------------------------------------------*/
class DEV_CCVS : public CCSRC_BASE {
private:
explicit DEV_CCVS(const DEV_CCVS& p) :CCSRC_BASE(p) {}
public:
explicit DEV_CCVS() :CCSRC_BASE() {}
private: // override virtual
char id_letter()const override {return 'H';}
std::string value_name()const override{itested(); return "gain";}
std::string dev_type()const override {return "ccvs";}
bool use_obsolete_callback_parse()const override {return true;}
CARD* clone()const override {return new DEV_CCVS(*this);}
void precalc_last() override;
void tr_iwant_matrix() override {tr_iwant_matrix_extended();}
void tr_begin()override;
bool do_tr()override {_sim->_late_evalq.push_back(this); return true;}
bool do_tr_last()override;
void tr_load()override {tr_load_shunt(); tr_load_active();}
void ac_iwant_matrix()override {ac_iwant_matrix_extended();}
void ac_begin()override {_loss1=_loss0=1./OPT::shortckt; _ev = _y[0].f1;}
void do_ac()override;
void ac_load()override {ac_load_active();}
COMPLEX ac_amps()const override {untested(); return ELEMENT::ac_amps();}
std::string port_name(int i)const override {untested();
assert(i >= 0);
assert(i < 2);
static std::string names[] = {"p", "n"};
return names[i];
}
std::string current_port_name(int i)const override {untested();
assert(i >= 0);
assert(i < 1);
static std::string names[] = {"in"};
return names[i];
}
};
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
void DEV_CCVS::precalc_last()
{
CCSRC_BASE::precalc_last();
set_converged();
assert(!is_constant()); /* because of incomplete analysis */
}
/*--------------------------------------------------------------------------*/
void DEV_CCVS::tr_begin()
{
CCSRC_BASE::tr_begin();
_loss1 = _loss0 = 1./OPT::shortckt;
_m0.x = _y[0].x;
_m0.c1 = -_loss0 * value();
_m0.c0 = 0.;
_m1 = _m0;
}
/*--------------------------------------------------------------------------*/
bool DEV_CCVS::do_tr_last()
{
assert(_input);
if (using_tr_eval()) {
_m0.x = tr_involts_limited();
_y[0].x = tr_input_limited();
tr_eval();
assert(_y[0].f0 != LINEAR);
_m0 = CPOLY1(_y[0]);
}else{
assert(_y[0].f0 == LINEAR);
assert(_y[0].f1 == value());
_m0.c0 = 0.;
assert(converged());
}
if (_input->has_inode()) {untested();
// nothing
}else if (_input->has_iv_probe()) {
_m0.c0 += _y[0].f1 * _input->_m0.c0;
_m0.c1 = _y[0].f1 * (_input->_loss0 + _input->_m0.c1);
}else{unreachable();
}
_m0 *= -_loss0;
store_values();
q_load();
return converged();
}
/*--------------------------------------------------------------------------*/
void DEV_CCVS::do_ac()
{
assert(_input);
if (!_input->evaluated()) {untested();
ELEMENT* input = const_cast<ELEMENT*>(_input);
input->do_ac(); //BUG// premature load of sense element
}else{
}
ac_load_shunt();
if (using_ac_eval()) {untested();
ac_eval();
}else{
assert(_ev == _y[0].f1);
assert(has_tr_eval() || _ev == double(value()));
}
if (_input->is_source()) {
_acg = -_loss0 * _ev * _input->_acg;
ac_load_source();
_acg = -_loss0 * _ev * _input->_loss0;
}else if (_input->has_inode()) {untested();
_acg = -_loss0 * _ev;
}else if (_input->has_iv_probe()) {
_acg = -_loss0 * _ev * _input->_acg;
}else{unreachable();
}
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
DEV_CCVS p1;
DISPATCHER<CARD>::INSTALL d1(&device_dispatcher, "H|ccvs", &p1);
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
// vim:ts=8:sw=2:noet:
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