Temperature compensated and self-calibrated current sensor using reference current
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United States of America Patent
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Jan 22, 2008
Grant Date -
Sep 6, 2007
app pub date -
Nov 6, 2006
filing date -
Jan 16, 2004
priority date (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 electrical current carried by a conductor positioned within the sensing window of the current sensor is used to correct variations in the output signal due to temperature variations and aging.
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