Prognostics of Electronic Systems through Power Supply Current Trends
As today's avionic systems highly rely on electronic components, the
prognostic of electronic systems in the context of avionics has become
crucial. This paper presents a prognostic method applicable to
electronic components and systems based on the analysis of the power
supply current. In this method, the focus is on trends in the measured
power supply current of the device under prognostic process. The
discussion in this paper reveals that there is a measurable
relationship between the supply current and the remaining lifetime of
the electronic devices. The presented methodology is supported by
circuit simulations performed on a system consisting of reference
circuitry. The prognostic method shows great promise due to the
ability of being applicable at any prognostic level.
Timmy Sundström, Behzad Mesgarzadeh, Mattias Krysander, Markus Klein, Ingemar Söderquist, Anneli Crona, Torbjörn Fransson and Atila Alvandpour
IEEE Internatioanl Conference on Prognostics and Health Management,
2008
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