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公开(公告)号：US12237730B2
公开(公告)日：2025-02-25
申请号：US17805378
申请日：2022-06-03
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Joao Cunha , Helmut Koeck , Markus Lehner
IPC: H02K11/215 , G01R33/07 , H02K7/00
Abstract: The innovative concept described herein relates to a magnetic angle sensor system having a rotatable shaft, a permanent magnet coupled to the rotatable shaft, and a magnetic field sensor arranged opposite the permanent magnet, wherein the magnetic field sensor is configured to detect a magnetic field prevailing in its detection region. The magnetic angle sensor system comprises means for reducing and/or compensating for an inhomogeneous stray field component of a per se homogeneous external magnetic stray field.
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公开(公告)号：US10907991B2
公开(公告)日：2021-02-02
申请号：US16129198
申请日：2018-09-12
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Armin Satz
Abstract: A magnetic sensor device for determining a rotation speed, a direction of rotation, and/or a rotation angle of a magnetic component rotating about a rotation axis is provided. The magnetic sensor device includes a magnet being rotationally symmetrical with respect to a symmetry axis, wherein a recess is formed within the magnet along the symmetry axis. Further, the magnetic sensor device includes a first magnetic sensor element arranged within the recess and on the symmetry axis, and a second magnetic sensor element arranged within the recess and on the symmetry axis. The magnetic sensor device additionally includes an integrated circuit arranged within the recess and configured to determine the rotation speed, the direction of rotation, and/or the rotation angle of the magnetic component based on a first output signal of the first magnetic sensor element and a second output signal of the second magnetic sensor element.
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公开(公告)号：US12140647B2
公开(公告)日：2024-11-12
申请号：US17937587
申请日：2022-10-03
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Dirk Hammerschmidt , Christoph Oswald , Joo Il Park , Armin Satz
Abstract: A position sensor system comprises a magnetic strip extending in a readout direction and comprising magnetic poles alternating at a constant pitch along the readout direction. At least a first differential magnetoresistive sensor comprises magnetoresistive sensing elements spaced at the pitch. The magnetic poles of the magnetic strip and the first differential magnetoresistive sensor are movable with respect to each other in the readout direction.
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公开(公告)号：US11874298B2
公开(公告)日：2024-01-16
申请号：US17196101
申请日：2021-03-09
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Ferdinand Gastinger , Stephanie Jankowski , Thomas Lassleben
CPC classification number: G01P3/487 , G01D5/147 , G01D11/245 , G01R33/0047
Abstract: A sensor device includes a magnetic field sensor component, including a chip carrier having a connection conductor and a magnetic field sensor chip arranged on the chip carrier, and a magnet, wherein the magnetic field sensor component is arranged on a mounting surface of the magnet, wherein the mounting surface has an elevation and the connection conductor is bent around the elevation.
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公开(公告)号：US11802886B2
公开(公告)日：2023-10-31
申请号：US17933900
申请日：2022-09-21
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a magnet body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The axially polarized back bias magnet generates a radial bias magnetic in-plane field about a magnetization axis of the axially polarized back bias magnet in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the magnetization axis and along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a magnetic sensor including a plurality of sensor elements arranged in the sensor plane at locations where the radial bias magnetic in-plane field has the magnetic flux density of substantially zero, including at least two sensor elements being arranged on the perimeter of the zero-field closed loop.
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Patent Agency Ranking
公开(公告)号：US11371824B2
公开(公告)日：2022-06-28
申请号：US16690934
申请日：2019-11-21
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Benjamin Kollmitzer , Peter Slama
IPC: G01B7/30
Abstract: The described techniques address the issues associated with conventional OoS sensor systems by mounting a magnetized ring onto a rotatable shaft for which an angular position is to be measured. Specific sensor configurations are disclosed regarding each magnetic sensor's position with respect to one another and each magnetic sensor's position with respect to the rotatable shaft. The described configurations provide a stray-field robust solution due to the specific magnetic sensor configurations such that, when stray fields are present, pairs of magnetic sensors are exposed to essentially the same stray field components, which thus cancel one another. Thus, the angle of the rotatable shaft as a function of the measured strength of the magnetic field components at any time instant can be calculated even in the present of stray magnetic fields.
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公开(公告)号：US11965909B2
公开(公告)日：2024-04-23
申请号：US17727979
申请日：2022-04-25
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Rocio Elisa De La Torre Rodriguez
IPC: G01P3/487
CPC classification number: G01P3/487
Abstract: A magnetic sensor system includes a toothed wheel configured to rotate about a rotation axis that extends in an axial direction, wherein the toothed wheel includes a plurality of teeth and a plurality of notches arranged that define a circumferential perimeter, wherein the toothed wheel further includes an interior cavity arranged within the circumferential perimeter; a front-bias magnet arranged within the interior cavity of the toothed wheel, wherein the front-bias magnet is rotationally fixed and is magnetized with a magnetization direction that extends along a radial axis of the toothed wheel; and a magnetic sensor arranged exterior to the toothed wheel, wherein the magnetic sensor includes a sensor element arranged on the radial axis that coincides with the magnetization direction of the front-bias magnet and the first sensor element is sensitive to a magnetic field of the front-bias magnet that is aligned with the radial axis.
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公开(公告)号：US11493527B2
公开(公告)日：2022-11-08
申请号：US17076240
申请日：2020-10-21
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The magnet generates a radially symmetric bias magnetic in-plane field about a center axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the center axis and at a circumference of a zero-field circle located in the sensor plane, where the circumference of the zero-field circle vertically overlaps with the magnet body in a plan view. The magnetic sensor module includes a magnetic sensor including at least three sensor elements arranged in the sensor plane at locations where the radially symmetric bias magnetic in-plane field has a magnetic flux density of substantially zero, including at least two sensor elements being arranged on the circumference of the zero-field circle.
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公开(公告)号：US09933448B1
公开(公告)日：2018-04-03
申请号：US15403790
申请日：2017-01-11
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
Abstract: Magnetic sensor modules, systems and methods are provided, configured to detect a rotation of an object. A magnetic sensor module includes an axially polarized back bias magnet that generates a radially symmetric bias magnetic field about a center axis of the axially polarized back bias magnet in a sensor plane, and a magnetic sensor including a plurality of sensor elements arranged in the sensor plane of the magnetic sensor and are configured to generate measurement values in response to sensing the radially symmetric bias magnetic field. The plurality of sensor elements are arranged on a circumference of a circle at equidistant angles about the center axis of the axially polarized back bias magnet. The plurality of sensor elements are grouped into a plurality of pairs such that each pair has a sensitivity axis sensitive to a different in-plane magnetic field component of the radially symmetric bias magnetic field.
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公开(公告)号：US09200924B2
公开(公告)日：2015-12-01
申请号：US14601385
申请日：2015-01-21
Applicant: Infineon Technologies AG
Inventor： Wolfgang Granig , Gernot Binder
IPC: G01B7/30 , G01D5/12 , G01R33/025 , G01D5/14 , G01D5/244
CPC classification number: G01D5/12 , G01D5/145 , G01D5/244 , G01R33/025
Abstract: The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.
Abstract translation: 本发明涉及一种磁角传感器模块，其具有包括第一极数的第一磁极轮和包括大于第一数量的第二极数的第二磁极轮。 第一和第二磁阻传感器分别位于第一极轴周围的第一角位置和第二角位置。 第一和第二磁阻传感器共同地产生对应于第一极轮的测量角度的传感器信号，而第三磁阻传感器产生对应于第二极轮的测量角度的第三传感器信号。 信号处理器接收第一传感器信号和第三传感器信号，并操作一种算法，该算法从第一传感器信号确定第二极轮的信号曲线内的位置，并确定与信号曲线和第三传感器信号内的位置的增强的角度。
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