Variable reluctance sensor interfaces and methods of their operation
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United States of America Patent
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Jun 14, 2016
Grant Date -
Apr 9, 2015
app pub date -
Oct 3, 2013
filing date -
Oct 3, 2013
priority date (Note) -
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Abstract
The embodiments described herein include systems with a variable reluctance sensor (VRS) interface and methods of their operation that may reduce the probability of erroneous transitions in a resulting generated detect signal. As such, the VRS interface can improve the accuracy of position and/or motion determinations, and thus can improve the performance of a wide variety of devices that use variable reluctance sensors. In one embodiment the VRS interface uses a comparator with hysteresis to generate a trailing edge signal. In another embodiment the VRS interface uses bias voltages to reduce the probability of erroneous transitions in a trailing edge signal. In either case the VRS interface can prevent erroneous transitions in the detect signal and thus may improve the performance and accuracy of the system.
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