blockBJTvars

Space charge and injected currents of bipolar transistors

Parameters

Type	Name	Default	Description
Modelica.SIunits.Entropy	k	Modelica.Constants.k	Boltzmann's constant
Modelica.SIunits.ElectricCharge	q	1.6021892e-19	Electron charge
Real	GapC1	7.02E-4	First bandgap correction factor Silicon
Modelica.SIunits.Temperature	GapC2	1108.0	Second bandgap correction factor Silicon
Modelica.SIunits.Temperature	Tnom	300.15	Reference temperature
Real	BF	50	Maximum forward current gain at reference temperature
Real	BR	0.1	Maximum reverse current gain at reference temperature
Modelica.SIunits.Current	IS	1e-16	Saturation current at reference temperature
Modelica.SIunits.Current	ISS	IS	Saturation current used for current injection
Modelica.SIunits.Time	TF	0.12e-9	Ideal forward transit time
Modelica.SIunits.Voltage	EG	1.11	Energy gap for temperature effect on saturation current
Modelica.SIunits.Voltage	VAF	9e30	Forward early voltage
Modelica.SIunits.Voltage	VAR	9e30	Reverse early voltage
Modelica.SIunits.Current	IKF	9e30	Corner for forward beta high-current roll-off
Modelica.SIunits.Current	IKR	9e30	Corner for reverse beta high-current roll-off
Modelica.SIunits.Current	ISC	1e-16	Base-collector leakage saturation current at reference temperature (ISC = C4*IS)
Modelica.SIunits.Current	ISE	1e-16	Base-emitter leakage saturation current at reference temperature (ISE = C2*IS)
Real	NC	2	Low-current base-collector leakage emission coefficient
Real	NE	1.5	Low-current base-emitter leakage emission coefficient
Real	XTI	3	Saturation current temperature exponent
Real	XTB	0	Forward and reverse beta temperature coefficient
Real	Area	1	Relative area occupied by resistor
Integer	Level	2	Transistor modeling level (Ebers-Moll = 1; Gummel-Poon = 2)

Connectors

Type	Name	Description
Modelica.Blocks.Interfaces.RealInput	vbc	Base-collector voltage
Modelica.Blocks.Interfaces.RealInput	vbe	Base-emitter voltage
Modelica.Blocks.Interfaces.RealInput	ibc	Base-collector current
Modelica.Blocks.Interfaces.RealInput	ibe	Base-emitter current
Modelica.Blocks.Interfaces.RealOutput	qb	Base charge
Modelica.Blocks.Interfaces.RealOutput	C0	Base capacitance
Modelica.Blocks.Interfaces.RealOutput	ib0	Injected base current
Modelica.Blocks.Interfaces.RealOutput	ic0	Injected collector current
Modelica.Blocks.Interfaces.RealInput	Tdev	Device temperature

Components

Type	Name	Description
Modelica.SIunits.Voltage	Vt	Thermal voltage
Modelica.SIunits.Voltage	EGval	Energy gap at device temperature
Modelica.SIunits.Current	ISCval	Collector saturation current at device temperature
Modelica.SIunits.Current	ISEval	Emitter saturation current at device temperature
Modelica.SIunits.Current	icn	Beta degradation collector current
Modelica.SIunits.Current	ien	Beta degradation emitter current