Invention Grant
- Patent Title: External field robust angle sensing with differential magnetic field
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Application No.: US16778782Application Date: 2020-01-31
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Publication No.: US11067378B2Publication Date: 2021-07-20
- Inventor: Udo Ausserlechner , Wolfgang Granig
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Design IP
- Priority: DE102016118384.9 20160928
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01B7/00 ; G01D5/14 ; G01D5/16 ; G01R33/09

Abstract:
A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic arrangement coupled to the shaft, where the magnetic arrangement produces a differential magnetic field comprising a plurality of diametric magnetic fields; a first magnetic angle sensor provided in the differential magnetic field and configured to generate a first signal that represents a first angle based on a first diametric magnetic field of the differential magnetic field; a second magnetic angle sensor provided in the differential magnetic field and configured to generate a second signal that represents a second angle based on a second diametric magnetic field of the differential magnetic field; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
Public/Granted literature
- US20200166326A1 EXTERNAL FIELD ROBUST ANGLE SENSING WITH DIFFERENTIAL MAGNETIC FIELD Public/Granted day:2020-05-28
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