Fault detection method and apparatus for analog to digital converter circuits
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United States of America Patent
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Apr 24, 2012
Grant Date -
Jan 24, 2008
app pub date -
Mar 21, 2007
filing date -
Mar 24, 2006
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Abstract
This invention relates to fault detection in electrical circuits, in particular it relates to fault detection for a plurality of adjacent input circuits. The invention provides a method and apparatus for detecting a control or communication fault on an analogue circuit by simulating said analogue circuit using a simulated circuit comprising digital circuit components; the simulated circuit receiving a control input to provide a first output; and the analogue circuit receiving said control input to provide a second output; and setting an error condition when the first output and the second output differ.
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