blocknlC2

Non-linear capacitance computation of Ebers-Moll BJT with thermal port

Extends from Modelica.Blocks.Interfaces.SISO (Single Input Single Output continuous control block).

Information

This block computes the junction capacitance value of a junction capacitance in accordance with the Ebers-Moll junction diode model. Temperature variation is considered in this model.

Parameters

TypeNameDefaultDescription
Realk1.3806226e-23Boltzmann's constant
Modelica.SIunits.ElectricChargeq1.6021918e-19Electron charge
Modelica.SIunits.TemperatureTnom300.15Reference temperature
Modelica.SIunits.CurrentIs1.e-16Transport saturation current
Modelica.SIunits.TimeTau5e-9Ideal transit time
Modelica.SIunits.VoltagePhi0.8Diffusion voltage
Modelica.SIunits.CapacitanceCj0.5e-12Zero bias depletion capacitance
RealM0.333Gradation exponent
Modelica.SIunits.VoltageEG1.11Energy gap for temperature effect on saturation current
RealN1Current emission coefficient
RealXTI3Saturation current temperature exponent
RealEMin-100if x < EMin, the exp(x) function is linearized
RealEMax40if x > EMax, the exp(x) function is linearized

Connectors

TypeNameDefaultDescription
RealInputu (from SISO)Connector of Real input signal
RealOutputy (from SISO)Connector of Real output signal
Modelica.Blocks.Interfaces.RealInputTdevDevice temperature

Components

TypeNameDefaultDescription
Modelica.SIunits.VoltagevVoltage across the junction capacitance
Modelica.SIunits.CapacitanceCNon-linear junction capacitance value
Modelica.SIunits.VoltageVtThermal voltage
Modelica.SIunits.CurrentISvalSaturation current at device temperature

Contents

NameDescription
powprotectedJust a helper function for x^y