Catastrophic faults detection of analog circuits

Arabi, Abderrazak; Bourouba, Nacerdine; Belaout, Abdesslam; Ayad, Mouloud

doi:10.1109/icmic.2015.7409367

Cited by 6 publications

(6 citation statements)

References 1 publication

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“…To verify the efficiency of the method proposed in this paper, Table III compares the fault coverage of the proposed method with that of the classical test method and an earlier method [16] using the time-mode simulation for the same circuit. The fault coverage is found to be 100% for the proposed technique, whereas for the classical testing and time-mode testing method, it is not more than 90%.…”

Section: Simulation Resultsmentioning

confidence: 99%

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DC Hard Faults Detection and Localization in Analog Circuits Using Fuzzy Logic Techniques

Merabet¹,

Bourouba²

2019

ELS

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This paper demonstrates a novel technique based on the use of a fuzzy logic system and the simulation before test (SBT) approach for hard faults detection and localization in analog electronic circuits comprising bipolar transistors. For this purpose, first, simulations of the circuit under test (CUT) are performed before the test stage by investigating the response of the circuit under test in faulty and fault-free conditions. Following this, two signatures parameters—output voltage and supply current—are observed and used for the fault diagnosis; the CUT is simulated using the OrCAD/PSpice software, and the output is analyzed in the DC domain. This method is validated through an inverter amplifier based on the uA741 operational amplifier. Then the results of different experiments are presented to demonstrate the applicability of the proposed method by increasing its efficiency.

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Section: Simulation Resultsmentioning

confidence: 99%

“…The triangular shape has been used in this work. This function is frequently encountered in practice-e.g., [9]- [10], [13], [16]-given its efficiency with respect to calculation time. This efficiency can be attributed to its simple structure consisting of simple straight-line segments.…”

Section: Fuzzy Logic Approachmentioning

confidence: 99%

DC Hard Faults Detection and Localization in Analog Circuits Using Fuzzy Logic Techniques

Merabet¹,

Bourouba²

2019

ELS

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“…With the introduction of some new analog fault simulators, such as DefectSim [27] by Mentor Graphics and TestMAX [28] by Synopsys, the catastrophic fault [29][30][31] model became widely used. Catastrophic faults consist of open circuits or short circuits in the circuit diagram of a subsystem.…”

Section: Analog Fault Modelsmentioning

confidence: 99%

“…In the analog circuits, another possible fault model considered is the parametric fault [29][30][31]. Parametric faults are variations of one parameter of a component outside its nominal range.…”

Section: Analog Fault Modelsmentioning

confidence: 99%

“…Moreover, it is possible to consider only a single fault at a time or different faults at the same time [29][30][31]; in the first case, a single point fault scenario is considered, while in the second one, a multiple point faults scenario is considered. In this work, a single point scenario with different catastrophic faults is considered.…”

Section: Analog Fault Modelsmentioning

confidence: 99%

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Multilevel Simulation Methodology for FMECA Study Applied to a Complex Cyber-Physical System

et al. 2020

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Complex systems are composed of numerous interconnected subsystems, each designed to perform specific functions. The different subsystems use many technological items that work together, as for the case of cyber-physical systems. Typically, a cyber-physical system is composed of different mechanical actuators driven by electrical power devices and monitored by sensors. Several approaches are available for designing and validating complex systems, and among them, behavioral-level modeling is becoming one of the most popular. When such cyber-physical systems are employed in mission- or safety-critical applications, it is mandatory to understand the impacts of faults on them and how failures in subsystems can propagate through the overall system. In this paper, we propose a methodology for supporting the failure mode, effects, and criticality analysis (FMECA) aimed at identifying the critical faults and assessing their effects on the overall system. The end goal is to analyze how a fault affecting a single subsystem possibly propagates through the whole cyber-physical system, considering also the embedded software and the mechanical elements. In particular, our approach allows the analysis of the propagation through the whole system (working at high level) of a fault injected at low level. This paper provides a solution to automate the FMECA process (until now mainly performed manually) for complex cyber-physical systems. It improves the failure classification effectiveness: considering our test case, it reduced the number of critical faults from 10 to 6. The remaining four faults are mitigated by the cyber-physical system architecture. The proposed approach has been tested on a real cyber-physical system in charge of driving a three-phase motor for industrial compressors, showing its feasibility and effectiveness.

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Assessing Test Procedure Effectiveness for Power Devices

Piumatti

Reorda

2018

2018 Conference on Design of Circuits and Integrated Systems (DCIS)

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Catastrophic faults detection of analog circuits

Cited by 6 publications

References 1 publication

DC Hard Faults Detection and Localization in Analog Circuits Using Fuzzy Logic Techniques

DC Hard Faults Detection and Localization in Analog Circuits Using Fuzzy Logic Techniques

Multilevel Simulation Methodology for FMECA Study Applied to a Complex Cyber-Physical System

Assessing Test Procedure Effectiveness for Power Devices

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