inductance.h

/***************************************************************************
 *   Copyright (C) 2005 by David Saxton                                    *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#ifndef INDUCTANCE_H
#define INDUCTANCE_H

#include "reactive.h"

class Inductance : public Reactive
{
        public:
                enum Method
                {
                        m_none, // None
                        m_euler, // Backward Euler
                        m_trap // Trapezoidal (currently unimplemented)
                };
                Inductance( double capacitance, double delta );
                virtual ~Inductance();
        
                virtual Type type() const { return Element_Inductance; }
                void setMethod( Method m );
                virtual void time_step();
                virtual void add_initial_dc();
                void setInductance( double i );
                virtual void add_map();
        
        protected:
                virtual void updateCurrents();
                virtual bool updateStatus();
        
        private:
                double m_inductance; // Inductance
                Method m_method; // Method of integration
                
                double r_eq_old;
                double v_eq_old;
};

#endif

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