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Nullator‐norator approach to analogue circuit diagnosis using general‐purpose analysis programmes
Author(s) -
Farchy Samuil L.,
Gadzheva Elisaveta D.,
Raykovska Lyudmila H.,
Kouyoumdjiev Todor G.
Publication year - 1995
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490230603
Subject(s) - benchmark (surveying) , fault (geology) , network analysis , computer science , decomposition , switched capacitor , electronic circuit , isolation (microbiology) , identification (biology) , reliability engineering , algorithm , computer engineering , electronic engineering , capacitor , topology (electrical circuits) , engineering , electrical engineering , ecology , botany , microbiology and biotechnology , geodesy , voltage , seismology , geography , biology , geology
In this paper a decomposition approach to diagnosis and fault prediction in large analogue and switched capacitor circuits is proposed, reduced to an analysis of the corresponding nullator‐norator models at a single test frequency. Algorithms for isolation of faulty nodes and subcircuits are presented. the topological conditions for performing diagnosis of faulty nodes and for identification of faulty elements have been considered. the element tolerance variations and measurement errors have been taken into account. the possibilities of the general‐purpose programmes for frequency and worst‐case analysis have been used in the practical implementation of diagnosis and fault prediction. Diagnosis of benchmark circuits has been performed and the results of a computer simulation using the programme PSpice are presented.