FDSAC-SPICE: Fault Diagnosis Software for Analog Circuit based on SPICE Simulation

摘要

This paper presents a novel fault diagnosis software (called FDSAC-SPICE) based on SPICE simulator for analog circuits. Four important techniques in AFDS-SPICE, including visual user-interface(VUI) , component modeling and fault modeling(CMFM), fault injection and fault simulation(FIFS), fault dictionary and fault diagnosis(FDFD), greatly increase design-for-test and diagnosis efficiency of analog circuit by building a fault modeling-injection-simulation-diagnosis environment to get prior fault knowledge of target circuit. AFDS-SPICE also generates accurate fault coverage statistics that are tied to the circuit specifications. With employing a dictionary diagnosis method based on node-signal-characters and regular BPNN algorithm, more accurate and effective diagnosis results are available for analog circuit with tolerance.