Proposal of an analog voltmeter PCB’s design layout based on DFMEA methodology for failure reduction

Year 2018, , 44 - 55, 05.04.2018

Daniel Bonello , Yuzo Iano Umberto Neto

https://doi.org/10.31593/ijeat.409405

Abstract

With the
constant demand of automotive industries for embedded electronic devices in
order to employ them in vehicles that needs constant monitoring and management
of their energy systems, analog voltmeters stands out in this kind of
application by their measurement efficiency and driver’s assistance. This
electronic device is often used for variable’s controlling in fields where
requires total measurement preciosion, such as: automotive ebedded
systems,  process control, electrical
machenary testing, electronic diagnosis and so on. The current work was designed
to the development of an analog voltmeter PCB’s design layout based on DFMEA
(Design Failure Mode and Effects Analysis) methodology, to avoid potential
failures during design conception. The confection process of those PCB’s
layouts begins with the analysis of two original circuits in AutoCAD, where the
main problem verifyed was the alterations to be done in the circuits due the
layer’s distribution scenario. This problem was solved through SMT components re-adjustment
applying DFMEA methodology. In the application of this meyhodology, the percentage
of  potential failures was about to 61% to
the first circuit and 38% to the second circuit. This results idicates that the
application of DFMEA in PCB’s design layout is highly efficient to detect,
identify and classify the risk and severity of potential failures during the
project development.              

Keywords- Vehicle electronics, embedded systems, DFMEA, PCB design,
instrumentation, failure reduction

Keywords

Vehicle electronics, embedded systems, DFMEA, PCB design, instrumentation

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