Nonlinear circuit fault diagnosis with large change sensitivity

Author

Worsman, Matthew ; Wong, Mike W T

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech. Univ., Hung Hom, Hong Kong

Volume

2

fYear

1998

fDate

1998

Firstpage

225

Abstract

Until now, large change sensitivity based fault diagnosis has been limited to the AC frequency domain. This paper presents a method to use large change sensitivity for nonlinear circuit fault diagnosis in the DC domain. Combined with the previous DC technique we propose an algorithm for constructing a nonlinear circuit fault dictionary. Advantages of this algorithm are that the benefits of large change sensitivity, namely computational efficiency, become available for nonlinear circuit testing. The method is restricted to single faults and circuits with one nonlinear resistor. Possible generalisation of the work is also discussed

Keywords

analogue circuits; circuit optimisation; circuit simulation; fault diagnosis; frequency-domain analysis; nonlinear network analysis; sensitivity analysis; DC frequency domain; analog fault diagnosis; change sensitivity; circuit fault dictionary; circuit testing; computational efficiency; generalisation; nonlinear circuit fault diagnosis; nonlinear resistor; single faults; Circuit faults; Circuit simulation; Circuit testing; Dictionaries; Equations; Fault diagnosis; Frequency; Nonlinear circuits; Observability; Resistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1998 IEEE International Conference on

Conference_Location

Lisboa

Print_ISBN

0-7803-5008-1

Type

conf

DOI

10.1109/ICECS.1998.814868

Filename

814868