INTRODUCTION TO VHDL-AMS
67
The following requirements have to be fulfilled by the solution of a
conservative system
Kirchhoff's Current Law (KCL)
Kirchhoff's Voltage Law (KVL)
Constitutive relations that describe requirements for branch voltages and
currents
In this section, we will introduce some basic VHDL-AMS language
constructs used to model conservative systems. Both electrical and
nonelectrical systems can be modeled.
Background knowledge on network modeling approaches can be found in
a wide range of books, such as [DeK69], [ChD87]. The description and
simulation of the analog portion uses many ideas known from SPICE-like
simulation engines. There are many books with more information (for
example [Vla93], [VlS94], [Kun95]).
6.3.1
Network analysis problem
By means of an example we will look at the formulation of a network
analysis problem and discuss the consequences concerning the language
constructs required. The following circuit shall be considered.
Figure 6-5.
Network analysis problem
The input voltage vin(t) is given. The branch voltages and currents of all
other branches shall be determined.
Summary :
INTRODUCTION TO VHDL-AMS 67 The following requirements have to be fulfilled by the solution of a conservative system Kirchhoff's Current Law (KCL) Kirchhoff's Voltage Law (KVL) Constitutive relations that describe requirements for branch voltages and currents In this section, we will introduce some basic VHDL-AMS language constructs used to model conservative systems.
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