Temperature compensated and self-calibrated current sensor using reference magnetic field
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United States of America Patent
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Oct 9, 2007
Grant Date -
Mar 15, 2007
app pub date -
Nov 6, 2006
filing date -
Jan 16, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference magnetic field generated within the current sensor housing is detected by the magnetic field sensors and is used to correct variations in the output signal due to temperature variations and aging.
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