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Hall sensors having forced sensing nodes

  • US 9,024,629 B2
  • Filed: 09/17/2012
  • Issued: 05/05/2015
  • Est. Priority Date: 09/16/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • applying a bias signal to a first node of a Hall plate;

    forcing a voltage level at second and third nodes of the Hall plate to a fixed value;

    measuring a differential signal in each of first and second feedback circuits coupled, respectively, to the second and third nodes; and

    determining a magnetic field output signal from the differential signals.

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