A macromodeling algorithm for analog circuits

Author

Casinovi, Giorgio ; Sangiovanni-Vincentelli, Alberto

Author_Institution

Dept. of Electric. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

Volume

10

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

150

Lastpage

160

Abstract

A macromodel is an electrical network containing fewer devices and/or fewer nodes than the circuit it represents. A general-purpose algorithm for the generation of macromodels suitable for circuit simulation is presented. The algorithm is based exclusively on a comparison of the input-output behavior of the macromodel with that to the circuit to be modeled. Because no reliance on any particular properties of the circuit is made, the algorithm can be used to model a very wide class of circuits. Three examples are presented to demonstrate the algorithm´s performance, two of which were chosen specifically to test the algorithm´s ability to approximate nonlinearities in the circuits to be modeled. In all cases, the accuracy of the macromodels was shown to improve substantially using reasonable amounts of CPU time

Keywords

analogue circuits; circuit analysis computing; equivalent circuits; analog circuits; circuit simulation; electrical network; general-purpose algorithm; macromodeling algorithm; Analog circuits; Central Processing Unit; Circuit simulation; Digital circuits; Helium; Large-scale systems; Shape; Time domain analysis; Timing; Very large scale integration;

fLanguage

English

Journal_Title

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0278-0070

Type

jour

DOI

10.1109/43.68402

Filename

68402