×

Magnetic sensor with low electric offset

  • US 8,664,941 B2
  • Filed: 08/24/2011
  • Issued: 03/04/2014
  • Est. Priority Date: 08/24/2011
  • Status: Active Grant
First Claim
Patent Images

1. A low-offset, high-sensitivity magnetic sensor device, comprising:

  • a low-offset magnetic sensor;

    a high-sensitivity magnetic sensor; and

    an offset compensation circuit configured to;

    determining a zero-crossing of a sensing field from an output of the low-offset magnetic sensor;

    sample an offset value of the high-sensitivity magnetic sensor at the zero-crossing; and

    subtract the offset value from an output of the high-sensitivity magnetic sensor.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×