sim_model_switch.cpp

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/* This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2022 Mikolaj Wielgus
 * Copyright (C) 2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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
 * of the License, 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, you may find one here:
 * https://www.gnu.org/licenses/gpl-3.0.html
 * or you may search the http://www.gnu.org website for the version 3 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <sim/sim_model_switch.h>
 
#include <fmt/core.h>
 
 
std::string SPICE_GENERATOR_SWITCH::ItemLine( const SPICE_ITEM& aItem ) const
{
 std::string result;
 
 switch( m_model.GetType() )
 {
 case SIM_MODEL::TYPE::SW_V:
 {
 result = SPICE_GENERATOR::ItemLine( aItem );
 break;
 }
 
 case SIM_MODEL::TYPE::SW_I:
 {
 std::string vsourceName = fmt::format( "V__{}", aItem.refName );
 
 wxCHECK_MSG( aItem.pinNetNames.size() >= 2, "", wxS( "Missing two pin net names for SW_I" ) );
 
 // Current switches measure input current through a voltage source.
 result.append( fmt::format( "{0} {1} 0\n", aItem.pinNetNames[0], aItem.pinNetNames[1] ) );
 
 SPICE_ITEM item = aItem;
 item.modelName = fmt::format( "{0} {1}", vsourceName, aItem.modelName );
 result.append( SPICE_GENERATOR::ItemLine( item ) );
 break;
 }
 
 default:
 wxFAIL_MSG( wxS( "Unhandled SIM_MODEL type in SIM_MODEL_SWITCH" ) );
 break;
 }
 
 return result;
}
 
 
std::string SPICE_GENERATOR_SWITCH::ItemParams() const
{
 std::string result;
 
 for( const SIM_MODEL::PARAM& param : GetInstanceParams() )
 {
 // The only instance param is "ic", which is positional.
 std::string value = param.value;
 
 if( value != "none" )
 result.append( " " + value );
 }
 
 return result;
}
 
 
std::vector<std::reference_wrapper<const SIM_MODEL::PIN>> SPICE_GENERATOR_SWITCH::GetPins() const
{
 switch( m_model.GetType() )
 {
 case SIM_MODEL::TYPE::SW_V:
 return { m_model.GetPin( 2 ), m_model.GetPin( 3 ), m_model.GetPin( 0 ), m_model.GetPin( 1 ) };
 
 case SIM_MODEL::TYPE::SW_I:
 return { m_model.GetPin( 2 ), m_model.GetPin( 3 ) };
 
 default:
 wxFAIL_MSG( "Unhandled SIM_MODEL type in SIM_MODEL_SWITCH" );
 return {};
 }
}
 
 
SIM_MODEL_SWITCH::SIM_MODEL_SWITCH( TYPE aType ) :
 SIM_MODEL( aType,
 std::make_unique<SPICE_GENERATOR_SWITCH>( *this ) )
{
 static std::vector<PARAM::INFO> vsw = makeSwVParamInfos();
 static std::vector<PARAM::INFO> isw = makeSwIParamInfos();
 
 switch( aType )
 {
 case TYPE::SW_V:
 for( const PARAM::INFO& paramInfo : vsw )
 AddParam( paramInfo );
 break;
 
 case TYPE::SW_I:
 for( const PARAM::INFO& paramInfo : isw )
 AddParam( paramInfo );
 break;
 
 default:
 wxFAIL_MSG( wxS( "Unhandled SIM_MODEL type in SIM_MODEL_SWITCH" ) );
 break;
 }
}
 
 
const std::vector<SIM_MODEL::PARAM::INFO> SIM_MODEL_SWITCH::makeSwVParamInfos()
{
 std::vector<PARAM::INFO> paramInfos;
 PARAM::INFO paramInfo;
 
 paramInfo.name = "thr";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "V";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "0";
 paramInfo.description = "Threshold voltage";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "vt";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "his";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "V";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "0";
 paramInfo.description = "Hysteresis voltage";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "vh";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "ron";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "Ω";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "1";
 paramInfo.description = "Resistance when closed";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "roff";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "Ω";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "1e+12";
 paramInfo.description = "Resistance when open";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "ic";
 paramInfo.type = SIM_VALUE::TYPE_STRING;
 paramInfo.unit = "";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "none";
 paramInfo.description = "Initial state";
 paramInfo.isSpiceInstanceParam = true;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = { "none", "off", "on" };
 paramInfos.push_back( paramInfo );
 
 return paramInfos;
}
 
 
const std::vector<SIM_MODEL::PARAM::INFO> SIM_MODEL_SWITCH::makeSwIParamInfos()
{
 std::vector<PARAM::INFO> paramInfos;
 PARAM::INFO paramInfo;
 
 paramInfo.name = "thr";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "A";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "0";
 paramInfo.description = "Threshold current";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "it";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "his";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "A";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "0";
 paramInfo.description = "Hysteresis current";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "ih";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "ron";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "Ω";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "1";
 paramInfo.description = "Resistance when closed";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "roff";
 paramInfo.type = SIM_VALUE::TYPE_FLOAT;
 paramInfo.unit = "Ω";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "1e+12";
 paramInfo.description = "Resistance when open";
 paramInfo.isSpiceInstanceParam = false;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = {};
 paramInfos.push_back( paramInfo );
 
 paramInfo.name = "ic";
 paramInfo.type = SIM_VALUE::TYPE_STRING;
 paramInfo.unit = "";
 paramInfo.category = PARAM::CATEGORY::PRINCIPAL;
 paramInfo.defaultValue = "1";
 paramInfo.description = "Initial state";
 paramInfo.isSpiceInstanceParam = true;
 paramInfo.spiceModelName = "";
 paramInfo.enumValues = { "none", "off", "on" };
 paramInfos.push_back( paramInfo );
 
 return paramInfos;
}