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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-24 01:49:02 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-24 01:49:02 +0000
commit5de3dd4762ca33a0f92e79ffa4fe2ff67069d531 (patch)
treebad482b7afa4cdf47422d60a5dd2c61c7e333b09 /src/electronics/simulation/opamp.cpp
downloadktechlab-5de3dd4762ca33a0f92e79ffa4fe2ff67069d531.tar.gz
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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/opamp.cpp')
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diff --git a/src/electronics/simulation/opamp.cpp b/src/electronics/simulation/opamp.cpp
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+/***************************************************************************
+ * 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. *
+ ***************************************************************************/
+
+#include "elementset.h"
+#include "matrix.h"
+#include "opamp.h"
+
+OpAmp::OpAmp()
+ : Element::Element()
+{
+ m_numCBranches = 1;
+ m_numCNodes = 3;
+}
+
+
+OpAmp::~OpAmp()
+{
+}
+
+
+void OpAmp::add_map()
+{
+ if (!b_status)
+ return;
+
+ if ( !p_cnode[0]->isGround )
+ {
+ // Non-inverting input
+ p_A->setUse_c( p_cbranch[0]->n(), p_cnode[0]->n(), Map::et_constant, true );
+ }
+
+ if ( !p_cnode[2]->isGround )
+ {
+ // Inverting input
+ p_A->setUse_c( p_cbranch[0]->n(), p_cnode[2]->n(), Map::et_constant, true );
+ }
+
+ if ( !p_cnode[1]->isGround )
+ {
+ // Output
+ p_A->setUse_b( p_cnode[1]->n(), p_cbranch[0]->n(), Map::et_constant, true );
+ }
+}
+
+
+void OpAmp::add_initial_dc()
+{
+ if (!b_status)
+ return;
+
+ // Non-inverting input
+ A_c( 0, 0 ) = 1;
+
+ // Inverting input
+ A_c( 0, 2 ) = -1;
+
+ // Output
+ A_b( 1, 0 ) = 1;
+}
+
+
+void OpAmp::updateCurrents()
+{
+ if (!b_status) return;
+ m_cnodeI[0] = m_cnodeI[2] = 0.0;
+ m_cnodeI[1] = p_cbranch[0]->i;
+}
+
+
+