Patent · US Active

Hall sensor readout system with offset determination using the Hall element itself

US10345394B2 · kind B2 · utility

2Cited by
13References
17Claims
0Family size

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Key dates

Filing dateNov 6, 2014
Grant dateJul 9, 2019
Priority date—
Expiry dateJul 21, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R33/07
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method for providing offset compensation in a Hall sensor comprising at least one Hall element having a plate-shaped sensor element made of a doped semiconductor material, comprises using measurements on the Hall element itself. The method comprises obtaining a first readout signal (VH) from the at least one Hall element which is substantially dependent on the magnetic field, obtaining a second readout signal (VP) from the at least one Hall element which is substantially independent of the magnetic field, and using the second readout signal (VP) for obtaining a prediction ({circumflex over (V)}O) of the offset (VO) on the first readout signal (VH).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.