Fault diagnosis for linear analog circuits

2002 ◽  
Author(s):  
Jun-Weir Lin ◽  
Chung-Len Lee ◽  
Chau-Chin Su ◽  
Jwu-E Chen
Keyword(s):  
Fault Diagnosis ◽  
Analog Circuits ◽  
Linear Analog

A method for multiple soft fault diagnosis of linear analog circuits

Measurement ◽  
2019 ◽  
Vol 131 ◽  
pp. 714-722 ◽  
Author(s):  
Michał Tadeusiewicz ◽  
Stanisław Hałgas
Keyword(s):  
Fault Diagnosis ◽  
Analog Circuits ◽  
Linear Analog ◽  
Soft Fault ◽  
Soft Fault Diagnosis

scholarly journals A Tool for Single-Fault Diagnosis in Linear Analog Circuits with Tolerance Using the T-Vector Approach

VLSI Design ◽  
2008 ◽  
Vol 2008 ◽  
pp. 1-8
Author(s):  
José A. Soares Augusto ◽  
Carlos Beltrán Almeida
Keyword(s):  
Fault Diagnosis ◽  
Analog Circuits ◽  
Active Filter ◽  
Single Frequency ◽  
Single Fault ◽  
Parametric Faults ◽  
Linear Analog ◽  
Parametric Fault ◽  
Vector Approach

In previous works of these authors, a technique for doing single-fault diagnosis in linear analog circuits was developed. Under certain conditions, one of them assuming nominal values for the circuit parameters, it was shown that only two measurements taken on two selected circuit nodes, at a single frequency, were needed to detect and diagnose any parametric fault. In this paper, the practical value of the technique is improved by extending the application to the diagnosis of faults in circuits with parameters subject to tolerance. With this in mind, single parametric faults with several strengths are randomly injected in the circuit under study and, afterwards, these faults are diagnosed (or the diagnosis fails). Results are reported on a simple active filter. Conclusions are drawn about the robustness and effectiveness of the technique.

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