• Patent Title: Hall sensor and sensor arrangement
  • Application No.: US14374521
    Application Date: 2012-11-13
  • Publication No.: US10042010B2
    Publication Date: 2018-08-07
  • Inventor: Georg Röhrer
  • Applicant: ams AG
  • Applicant Address: AT Unterpremstaetten
  • Assignee: ams AG
  • Current Assignee: ams AG
  • Current Assignee Address: AT Unterpremstaetten
  • Agency: McDermott Will & Emery LLP
  • Priority: EP12153493 20120201
  • International Application: PCT/EP2012/072503 WO 20121113
  • International Announcement: WO2013/113418 WO 20130808
  • Main IPC: G01R33/06
  • IPC: G01R33/06 G01R33/07 G01R33/00
Hall sensor and sensor arrangement
Abstract:
A Hall sensor (HS) comprises at least four sensor terminals (EXT_A, EXT_B, EXT_C, EXT_D) for connecting the Hall sensor (HS) in at least two Hall sensing elements (11, 12, . . . , 44) connected together, element terminals (A, B, C, D) of the Hall sensing elements (11, 12, . . . , 44) are connected in between the sensor terminals (EXT_A, EXT_B, EXT_C, EXT_D). Each of the Hall sensing elements (11, 12, . . . , 44) is configured to provide an individual sensor value between two of its element terminals (A, B, C, D). The at least two Hall sensing elements (11, 12, . . . , 44) are distributed basically equally into two halves (B1, B2) and are connected such that a difference value is electrically formed between two of the sensor terminals (EXT_A, EXT_B, EXT_C, EXT_D) resulting from the respective individual sensor values. The individual sensor values of one half (B1) form a minuend of the difference value and the individual sensor values of the other half (B2) form a subtrahend of the difference value such that the minuend and the subtrahend cancel out each other in case a homogeneous magnetic field of the same intensity and the same direction is applied to both halves (B1, B2).
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