Modelica.Electrical.Analog.Examples.Utilities

Utility components used by package Examples

Information

This package contains some utility components used by package examples. These components are auxiliary components that should not be used like true MLS components since they are designed the purpose of the examples only, not for common use.

Extends from Modelica.Icons.UtilitiesPackage (Icon for utility packages).

Package Content

Name	Description
Nand	CMOS NAND Gate (see Tietze/Schenk, page 157)
NonlinearResistor	Chua's resistor
RealSwitch	Ideal switch with resistance
Transistor	Transistor with resistance an capacitance

Modelica.Electrical.Analog.Examples.Utilities.Nand

CMOS NAND Gate (see Tietze/Schenk, page 157)

Information

The nand gate is a basic CMOS building block. It consists of four CMOS transistors.

Reference:

Tietze, U.; Schenk, Ch.: Halbleiter-Schaltungstechnik. Springer-Verlag Berlin Heidelberg NewYork 1980, p. 157

Connectors

Name Description

x1

x2

Vdd

y

Name	Description
x1
x2
Vdd
y

Modelica.Electrical.Analog.Examples.Utilities.NonlinearResistor

Chua's resistor

Information

This is the only nonlinear component for Chua';s circuit. It is a piecewise linear resistor with both an inner and an outer range, which includes the inner one. The slopes of both ranges are given by parameters. The resistance characteristic is continuous. For Chua';s circuit both slopes have to be chosen to be negative.

Extends from Interfaces.OnePort (Component with two electrical pins p and n and current i from p to n).

Parameters

Name Description

Ga Conductance in inner voltage range [S]

Gb Conductance in outer voltage range [S]

Ve Inner voltage range limit [V]

Name	Description
Ga	Conductance in inner voltage range [S]
Gb	Conductance in outer voltage range [S]
Ve	Inner voltage range limit [V]

Connectors

Name Description

p Positive pin (potential p.v > n.v for positive voltage drop v)

n Negative pin

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Examples.Utilities.RealSwitch

Ideal switch with resistance

Information

This component is a special kind of a commuting switch which possesses an additional constant resistance. This resistance was necessary in an example. It is not designed for common use.

Connectors

Name Description

p

n1

n2

control

Name	Description
p
n1
n2
control

Modelica.Electrical.Analog.Examples.Utilities.Transistor

Transistor with resistance an capacitance

Information

Since the simple bipolar transistor model does not have base or collector resistances both are added in this component. Additionally, a capacity is added to the base pin. See the schematic for more details. In such a way the transistor model can be enhanced to become more common.

Connectors

Name Description

c

b

e

Name	Description
c
b
e

Automatically generated Mon Sep 23 17:20:26 2013.