Magnetic field sensor arrangement and method for processing a magnetic field sensor output signal
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United States of America Patent
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Nov 5, 2019
Grant Date -
Oct 26, 2017
app pub date -
Apr 20, 2017
filing date -
Apr 20, 2016
priority date (Note) -
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Abstract
A magnetic field sensor arrangement includes a magnetic field sensor element configured to provide a sensor output signal responsive to a magnetic field, wherein the sensor output signal is representative of a magnetic field amplitude; a processing module configured to provide a processed sensor output signal representative of the sensor output signal; a switching level calculation module configured to calculate a switching level, (1) during a power up mode, based on a default switching level, and (2) during a running mode, based on the processed sensor output signal; a comparator module configured to compare the processed sensor output signal with the switching level, and to provide a comparator output signal based on the comparison; and a storage module configured to store the default switching level, provide the default switching level during the power up mode, and update the default switching level during the running mode.
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