Patent ID: 10989516

Abstract:
The present disclosure relates to a magnetic angle sensor arrangement. The magnetic angle sensor arrangement comprises a multipole magnet rotatable around a rotation axis. A geometric arrangement of the multipole magnet is rotationally asymmetric with respect to the rotation axis. A plurality of magnetic field sensor circuits are placed around the rotation axis at predefined equidistant angular positions in a predefined axial distance from the multipole magnet, wherein each magnetic field sensor circuit comprises a first magnetic field sensor element sensitive to first magnetic field component and a second magnetic field sensor element sensitive to a second magnetic field component perpendicular to the first magnetic field component. Processing circuitry is configured to compute a first intermediate angular information based on a combination of signals from the plurality of first magnetic field sensor elements, to compute a second intermediate angular information based on a combination of signals from the plurality of second magnetic field sensor elements, and to compute an estimate of a rotation angle of the fixture and/or the multipole magnet based on the first and second intermediate angular information.