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author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 01:49:02 +0000 |
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committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 01:49:02 +0000 |
commit | 5de3dd4762ca33a0f92e79ffa4fe2ff67069d531 (patch) | |
tree | bad482b7afa4cdf47422d60a5dd2c61c7e333b09 /src/electronics/simulation/nonlinear.h | |
download | ktechlab-5de3dd4762ca33a0f92e79ffa4fe2ff67069d531.tar.gz ktechlab-5de3dd4762ca33a0f92e79ffa4fe2ff67069d531.zip |
Added KDE3 version of ktechlab
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktechlab@1095338 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'src/electronics/simulation/nonlinear.h')
-rw-r--r-- | src/electronics/simulation/nonlinear.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/electronics/simulation/nonlinear.h b/src/electronics/simulation/nonlinear.h new file mode 100644 index 0000000..422f3a4 --- /dev/null +++ b/src/electronics/simulation/nonlinear.h @@ -0,0 +1,48 @@ +/*************************************************************************** + * Copyright (C) 2003-2005 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 NONLINEAR_H +#define NONLINEAR_H + +#include "element.h" + +/** +@short Represents a non-linear circuit element (such as a diode) +@author David Saxton +*/ +class NonLinear : public Element +{ + public: + NonLinear(); + + virtual bool isNonLinear() { return true; } + /** + * Newton-Raphson iteration: Update equation system. + */ + virtual void update_dc() = 0; + + protected: + double diodeCurrent( double v, double I_S, double Vte ) const; + /** + * Conductance of the diode - the derivative of Schockley's + * approximation. + */ + double diodeConductance( double v, double I_S, double Vte ) const; + /** + * Limits the diode voltage to prevent divergence in the nonlinear + * iterations. + */ + double diodeVoltage( double v, double V_prev, double Vt, double V_crit ) const; + void diodeJunction( double v, double I_S, double Vte, double * I, double * g ) const; + + double diodeCriticalVoltage( double I_S, double Vte ) const; +}; + +#endif |