J_NJFJFET

N-channel Junction Field-Effect Transistor model (JFET)

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

J_NJFJFET is a N-channel junction field-effect transistor.

The junction field-effect transistor is derived from the FET model of Shichman and Hodges.

The models from the package Semiconductors accesses to the package Internal where all functions, records and data are stored and modeled that are needed for the semiconductor models. The package Semiconductors is for user access, but not the package Internal.

Parameters (14)

mtype

Value: 0

Type: Integer

Description: JFET type: 0 - N channel, 1 - P channel

AREA

Value:

Type: Real

Description: Number of parallel connected identical elements

OFF

Value: false

Type: Boolean

Description: Optional initial condition: 0 - IC not used, 1 - IC used, not implemented yet

IC_VDS

Value: -1e40

Type: Voltage (V)

Description: Initial condition value (VDS, not implemented yet)

IC_VGS

Value: -1e40

Type: Voltage (V)

Description: Initial condition value (VGS, not implemented yet)

UIC

Value: false

Type: Boolean

Description: Use initial conditions: true, if initial condition is used

TEMP

Value: 27

Type: Temperature_degC (°C)

Description: Operating temperature of the device

modelcard

Value:

Type: ModelcardJFET

Description: JFET modelcard

p

Value: Modelica.Electrical.Spice3.Internal.Jfet.jfetRenameParameters(modelcard)

Type: JfetModelLine

Description: Model line parameters

m

Value: Modelica.Electrical.Spice3.Internal.Fet.fetRenameParametersDev(AREA, OFF, IC_VDS, IC_VGS, UIC, TEMP)

Type: Fet

Description: Renamed parameters

m_type

Value: if mtype > 0.5 then -1 else 1

Type: Integer

Description: Type of the transistor

p1

Value: Modelica.Electrical.Spice3.Internal.Jfet.jfetInitEquations(m, p)

Type: JfetModelLine

Description: Precalculated parameters

p2

Value: Modelica.Electrical.Spice3.Internal.Jfet.jfetModelLineInitEquations(p1)

Type: JfetModelLine

Description: Model line variables

m1

Value: Modelica.Electrical.Spice3.Internal.Jfet.jfetCalcTempDependencies(m, p2)

Type: Fet

Description: Precalculated parameters

Connectors (3)

G

Type: PositivePin

Description: Gate node

D

Type: PositivePin

Description: Drain node

S

Type: NegativePin

Description: Source node

Components (7)

modelcard

Type: ModelcardJFET

Description: JFET modelcard

p

Type: JfetModelLine

Description: Model line parameters

m

Type: Fet

Description: Renamed parameters

p1

Type: JfetModelLine

Description: Precalculated parameters

p2

Type: JfetModelLine

Description: Model line variables

m1

Type: Fet

Description: Precalculated parameters

cc

Type: CurrrentsCapacitances

Used in Examples (1)

CascodeCircuit

Modelica.Electrical.Spice3.Examples