Hall sensor and sensor arrangement
US10042010B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/077
- WIPO fieldMeasurement
- WIPO sectorInstruments
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.