Inverted magnetic isolator
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United States of America Patent
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Nov 11, 2014
Grant Date -
Aug 18, 2011
app pub date -
Apr 27, 2011
filing date -
Sep 17, 2004
priority date (Note) -
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Abstract
A current determiner comprising a first input conductor and a first current sensor, formed of a plurality of magnetoresistive, anisotropic, ferromagnetic thin-film layers at least two of which are separated from one another by a nonmagnetic layer positioned therebetween, and both supported on a first side of a substrate adjacent to but electrically isolated from one another with the first current sensor positioned in those magnetic fields arising from any input currents. A first shield/concentrator of a material exhibiting a substantial magnetic permeability is positioned on a second side of the substrate opposite the first side of the substrate. The substrate can include a monolithic integrated circuit structure containing electronic circuit components of which at least one is electrically connected to the first input conductor.
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