BJT Class Reference

#include <bjt.h>

Inheritance diagram for BJT:

[legend]Collaboration diagram for BJT:

[legend]List of all members.

Public Member Functions
	BJT (bool isNPN)
virtual	~BJT ()
virtual Type	type () const
virtual void	update_dc ()
virtual void	add_initial_dc ()
virtual void	add_map ()
BJTSettings	settings () const
void	setBJTSettings (const BJTSettings &settings)
Protected Member Functions
virtual void	updateCurrents ()
void	calc_eq ()
void	calcIg (double V_BE, double V_BC, double *I_BE, double *I_BC, double *I_T, double *g_BE, double *g_BC, double *g_IF, double *g_IR)
Protected Attributes
BJTState	m_os
BJTState	m_ns
int	m_pol
double	V_BE_prev
double	V_BC_prev
BJTSettings	m_bjtSettings

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Detailed Description

Author:

David Saxton

random idiot: appears to be the class for "Bipolar Junction Transistors"

Definition at line 46 of file bjt.h.

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Member Function Documentation

virtual Type BJT::type

(

)

const [inline, virtual]

Returns the type of element

Implements Element.

Definition at line 52 of file bjt.h.

void BJT::update_dc

(

)

[virtual]

Newton-Raphson iteration: Update equation system.

Implements NonLinear.

Definition at line 125 of file bjt.cpp.

References BJTState::A, Element::A_g(), Element::b_i(), Element::b_status, calc_eq(), BJTState::I, m_ns, and m_os.

Referenced by add_initial_dc().

void BJT::add_initial_dc

(

)

[virtual]

Does the required MNA stuff. This should be called from ElementSet when necessary.

Implements Element.

Definition at line 97 of file bjt.cpp.

References m_os, BJTState::reset(), update_dc(), V_BC_prev, and V_BE_prev.

void BJT::add_map

(

)

[virtual]

Call this function to tell the element to add its map to the matrix in use

Reimplemented from Element.

Definition at line 70 of file bjt.cpp.

References Element::b_status, Element::p_A, Element::p_cnode, and Matrix::setUse().

void BJT::updateCurrents

(

)

[protected, virtual]

Call this function to tell the element to calculate the current flowing *into* it's cnodes *from* the element. You can get the currents with m_cnodeI. Child class must implement this function.

Implements Element.

Definition at line 105 of file bjt.cpp.

References Element::b_status, calcIg(), Element::m_cnodeI, m_pol, Element::p_cnode, and CNode::v.

void BJT::calc_eq

(

)

[protected]

Calculates the new BJTState from the voltages on the nodes.

Definition at line 142 of file bjt.cpp.

References BJTState::A, calcIg(), NonLinear::diodeCriticalVoltage(), NonLinear::diodeVoltage(), BJTState::I, BJTSettings::I_S, m_bjtSettings, m_ns, m_pol, BJTSettings::N_F, BJTSettings::N_R, Element::p_cnode, CNode::v, V_BC_prev, and V_BE_prev.

Referenced by update_dc().

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The documentation for this class was generated from the following files:

• bjt.h
• bjt.cpp

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