blocknlC

Non-linear capacitance computation of Gummel-Poon BJT

Parameters

TypeNameDefaultDescription
Modelica.SIunits.EntropykModelica.Constants.kBoltzmann's constant
Modelica.SIunits.ElectricChargeq1.6021892e-19Electron charge
RealGapC17.02E-4First bandgap correction factor Silicon
Modelica.SIunits.TemperatureGapC21108.0Second bandgap correction factor Silicon
Modelica.SIunits.TemperatureTnom300.15Reference temperature
Modelica.SIunits.CurrentIS1.e-16Transport saturation current
Modelica.SIunits.VoltageEG1.11Energy gap for temperature effect on saturation current at 0 K
RealN1Current emission coefficient
RealXTI3Saturation current temperature exponent
Modelica.SIunits.VoltageVJ0.8Built-in potential at reference temperature
Modelica.SIunits.CapacitanceCJ0.5e-12Zero-bias depletion capacitance at reference temperature
RealMJ0.333Junction grading coefficient
RealFC0.5Factor for linearization of depletion capacitance formula
Modelica.SIunits.TimeTau5e-9Ideal transit time
Modelica.SIunits.ConductanceGminDC1e-15Leakage conductance
RealArea1Relative area occupied by capacitor
IntegerLevel2Transistor modeling level (Ebers-Moll = 1; Gummel-Poon = 2)
BooleanBEtrueTrue if base-emitter junction
RealEMin-100if x < EMin, the exp(x) function is linearized
RealEMax40if x > EMax, the exp(x) function is linearized

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputqbBase charge
Modelica.Blocks.Interfaces.RealInputC0Base capacitance
Modelica.Blocks.Interfaces.RealInputTdevDevice temperature
Modelica.Blocks.Interfaces.RealInputvVoltage across junction
Modelica.Blocks.Interfaces.RealOutputCdiffDiffusion capacitance
Modelica.Blocks.Interfaces.RealOutputCdeplDepletion capacitance

Components

TypeNameDefaultDescription
Modelica.SIunits.VoltageVtThermal voltage
Modelica.SIunits.CurrentISvalSaturation current at device temperature
Modelica.SIunits.VoltageVJvalBuilt-in potential at device temperature
Modelica.SIunits.CapacitanceCJvalDepletion capacitance at device temperature
Modelica.SIunits.VoltageEGvalEnergy gap at device temperature
Modelica.SIunits.VoltageEGnomEnergy gap at reference temperature