modelDifferenceAmplifier

Simple NPN transistor amplifier circuit

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

It is a simple NPN transistor amplifier circuit. The voltage difference between R1.p and R3.n is amplified. The output signal is the voltage between R2.n and R4.n. In this example the voltage at V1 is amplified because R3.n is grounded.

The simulation end time should be set to 1e-8. Please plot the input voltage V1.v, and the output voltages R2.n.v, and R4.n.v.

Reference:

Tietze, U.; Schenk, Ch.: Halbleiter-Schaltungstechnik. Springer-Verlag Berlin Heidelberg NewYork 1980, p. 59

Components

TypeNameDefaultDescription
Modelica.Electrical.Analog.Sources.ExpSineVoltageV1
Modelica.Electrical.Analog.Sources.RampVoltageV2
Modelica.Electrical.Analog.Sources.RampCurrentI1
Modelica.Electrical.Analog.Basic.ResistorR1
Modelica.Electrical.Analog.Basic.ResistorR2
Modelica.Electrical.Analog.Basic.ResistorR3
Modelica.Electrical.Analog.Basic.ResistorR4
Modelica.Electrical.Analog.Basic.CapacitorC1
Modelica.Electrical.Analog.Basic.CapacitorC4
Modelica.Electrical.Analog.Basic.CapacitorC5
Modelica.Electrical.Analog.Basic.CapacitorC2
Modelica.Electrical.Analog.Basic.CapacitorC3
Modelica.Electrical.Analog.Basic.GroundGnd1
Modelica.Electrical.Analog.Basic.GroundGnd9
Modelica.Electrical.Analog.Basic.GroundGnd3
Modelica.Electrical.Analog.Basic.GroundGnd2
Modelica.Electrical.Analog.Basic.GroundGnd6
Modelica.Electrical.Analog.Basic.GroundGnd7
Modelica.Electrical.Analog.Basic.GroundGnd8
Modelica.Electrical.Analog.Basic.GroundGnd5
Modelica.Electrical.Analog.Basic.GroundGnd4
Modelica.Electrical.Analog.Examples.Utilities.TransistorTransistor1
Modelica.Electrical.Analog.Examples.Utilities.TransistorTransistor2

Revisions

Main Authors:
Christoph Clauß <christoph@clauss-it.com>
André Schneider <Andre.Schneider@eas.iis.fraunhofer.de>
Fraunhofer Institute for Integrated Circuits
Design Automation Department
Zeunerstraße 38
D-01069 Dresden