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-rw-r--r--src/electronics/simulation/cccs.cpp89
1 files changed, 89 insertions, 0 deletions
diff --git a/src/electronics/simulation/cccs.cpp b/src/electronics/simulation/cccs.cpp
new file mode 100644
index 0000000..9725735
--- /dev/null
+++ b/src/electronics/simulation/cccs.cpp
@@ -0,0 +1,89 @@
+/***************************************************************************
+ * Copyright (C) 2003-2004 by David Saxton *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+#include "elementset.h"
+#include "matrix.h"
+#include "cccs.h"
+
+CCCS::CCCS( const double gain )
+ : Element::Element()
+{
+ m_g = gain;
+ m_numCBranches = 2;
+ m_numCNodes = 4;
+}
+
+CCCS::~CCCS()
+{
+}
+
+void CCCS::setGain( const double g )
+{
+ if ( m_g == g )
+ return;
+
+ if (p_eSet)
+ p_eSet->setCacheInvalidated();
+
+ m_g = g;
+ add_initial_dc();
+}
+
+
+void CCCS::add_map()
+{
+ if (!b_status) return;
+
+ if ( !p_cnode[0]->isGround )
+ {
+ p_A->setUse_b( p_cnode[0]->n(), p_cbranch[0]->n(), Map::et_constant, true );
+ p_A->setUse_c( p_cbranch[0]->n(), p_cnode[0]->n(), Map::et_constant, true );
+ }
+ if ( !p_cnode[1]->isGround )
+ {
+ p_A->setUse_b( p_cnode[1]->n(), p_cbranch[0]->n(), Map::et_constant, true );
+ p_A->setUse_c( p_cbranch[0]->n(), p_cnode[1]->n(), Map::et_constant, true );
+ }
+ if ( !p_cnode[2]->isGround )
+ {
+ p_A->setUse_b( p_cnode[2]->n(), p_cbranch[1]->n(), Map::et_constant, true );
+ }
+ if ( !p_cnode[3]->isGround )
+ {
+ p_A->setUse_b( p_cnode[3]->n(), p_cbranch[1]->n(), Map::et_constant, true );
+ }
+ p_A->setUse_d( p_cbranch[1]->n(), p_cbranch[0]->n(), Map::et_stable, true );
+ p_A->setUse_d( p_cbranch[1]->n(), p_cbranch[1]->n(), Map::et_constant, true );
+}
+
+void CCCS::add_initial_dc()
+{
+ if (!b_status)
+ return;
+
+ A_b( 0, 0 ) = 1;
+ A_c( 0, 0 ) = 1;
+ A_b( 1, 0 ) = -1;
+ A_c( 0, 1 ) = -1;
+ A_b( 2, 1 ) = 1;
+ A_b( 3, 1 ) = -1;
+ A_d( 1, 0 ) = -m_g;
+ A_d( 1, 1 ) = 1;
+}
+
+void CCCS::updateCurrents()
+{
+ if (!b_status) return;
+ m_cnodeI[1] = p_cbranch[0]->i;
+ m_cnodeI[0] = -m_cnodeI[1];
+ m_cnodeI[3] = p_cbranch[1]->i;
+ m_cnodeI[2] = -m_cnodeI[3];
+}
+