Micro-power magnetic switch
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United States of America Patent
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Jul 17, 2012
Grant Date -
Apr 1, 2010
app pub date -
Sep 29, 2008
filing date -
Sep 29, 2008
priority date (Note) -
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Abstract
A sensor having a power management mechanism controlled by an external trigger signal is presented. The sensor includes a magnetic field signal generating circuit and a control circuit coupled to the magnetic field signal generating circuit. The control circuit, responsive to an externally generated trigger signal, initiates a supply current pulse that activates the magnetic field signal generating circuit for a predetermined time interval.
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