Current sensor with alternating magnetic excitation
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United States of America Patent
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Mar 17, 2009
Grant Date -
Feb 28, 2008
app pub date -
Jul 31, 2007
filing date -
Jul 31, 2006
priority date (Note) -
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Abstract
A current measurement device includes a current sensor including a magnetic circuit, a plurality of windings including at least one excitation winding charged with the excitation of the magnetic circuit, and at least one detection winding. The sensor is equipped with windings forming a transformer of which at least one primary winding opposite the magnetic circuit through which a current I to be measured is designed to enter, and at least one secondary winding opposite the magnetic circuit capable of producing a counter reaction magnetic field.
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