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Magnetic current sensor

  • US 5,831,426 A
  • Filed: 08/16/1996
  • Issued: 11/03/1998
  • Est. Priority Date: 08/16/1996
  • Status: Expired due to Term
First Claim
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1. A current determiner for providing at an output thereof representations of input currents provided therein from a source of such currents, said current determiner comprising:

  • a substrate;

    an input conductor supported on said substrate suited for conducting said input currents therethrough; and

    a first current sensor supported on said substrate adjacent to, yet spaced apart from, said input conductor to thereby be electrically isolated from any direct circuit interconnection therewith on said substrate but positioned in those magnetic fields arising from said input currents, said first current sensor being 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.

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