公开(公告)号：US11965756B2

公开(公告)日：2024-04-23

申请号：US17658032

申请日：2022-04-05

Applicant: Infineon Technologies AG

Inventor： Joo Il Park ,  Richard Heinz ,  Hyun Jeong Kim ,  Sehwan Kim ,  Stephan Leisenheimer ,  Severin Neuner

IPC: G01D5/14

CPC classification number: G01D5/145

Abstract: Implementations relate to a sensor assembly for determining rotation about an axis and linear movement parallel to the axis. The sensor assembly comprises a magnetic structure comprising a north pole radially displaced from the axis and a south pole radially displaced from the axis and opposite to the north pole. The north pole and the south pole of the magnet extend radially into the direction of the axis at an axial end of the sensor assembly. The sensor assembly further comprises at least one sensor element sensitive to magnetic fields radially between the north pole and the south pole.

公开(公告)号：US12050103B2

公开(公告)日：2024-07-30

申请号：US17653671

申请日：2022-03-07

Applicant: Infineon Technologies AG

Inventor： Rainer Kling ,  Stephan Leisenheimer ,  Severin Neuner ,  Monika Pfeifer ,  Dragos Vocurek ,  Hans-Joerg Wagner

IPC: H02P23/14 ,  G01B7/30 ,  G01D5/14

CPC classification number: G01B7/30 ,  G01D5/145 ,  H02P23/14

Abstract: A rotational angle sensor device and a corresponding method are provided. Two signals which have a phase offset with respect to one another are generated based on a modulated magnetic field using a sensor arrangement. Three signals which have a phase offset with respect to one another are generated from the signals.

公开(公告)号：US11885648B2

公开(公告)日：2024-01-30

申请号：US17864805

申请日：2022-07-14

Applicant: Infineon Technologies AG

Inventor： Joo II Park ,  Richard Heinz ,  Hyun Jeong Kim ,  Stephan Leisenheimer ,  Severin Neuner

IPC: G01D5/14 ,  G01D18/00

CPC classification number: G01D5/14 ,  G01D18/00

Abstract: A method for determining a rotation angle of a magnet includes measuring a 3D magnetic field vector of a magnetic field generated by the magnet, wherein the 3D magnetic field vector describes at least a part of an ellipse in 3D space during a rotational movement of the magnet. The method further includes mapping the measured 3D magnetic field vector to a 2D vector based on a compensation mapping, wherein the compensation mapping is configured to map the ellipse in 3D space to a circle in 2D space. The method further includes determining the rotation angle of the magnet based on the 2D vector.