blocknlC

Non-linear capacitance computation of Ebers-Moll BJT

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. No temperature variation is considered in this model.

Parameters

TypeNameDefaultDescription
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.VoltageVt0.02585Thermal voltage
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

Components

TypeNameDefaultDescription
Modelica.SIunits.VoltagevVoltage across the junction capacitance
Modelica.SIunits.CapacitanceCNon-linear junction capacitance value

Contents

NameDescription
powprotectedJust a helper function for x^y