Current sensor and battery with current sensor
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United States of America Patent
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Apr 16, 2013
Grant Date -
Aug 18, 2011
app pub date -
Feb 3, 2011
filing date -
Feb 12, 2010
priority date (Note) -
Expired
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Abstract
A current sensor includes a magnetic detection element having a resistance value changed by applying inductive magnetic field from measurement target current, a magnetic core provided in the vicinity of the magnetic detection element, and a coil generating magnetic field attenuating the inductive magnetic field. A constant level current in a predetermined range of output voltage of the magnetic detection element flows in the coil, and the measurement target current is detected on the basis of the output voltage of the magnetic detection element.
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