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11.发明授权公开(公告)号：US11656240B2
公开(公告)日：2023-05-23
申请号：US17823152
申请日：2022-08-30
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
IPC: G01P3/481
CPC classification number: G01P3/481
Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis.
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12.发明授权公开(公告)号：US11442074B1
公开(公告)日：2022-09-13
申请号：US17235434
申请日：2021-04-20
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
IPC: G01P3/481
Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic in-plane field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the magnetization axis and at a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis and is congruent with the first bore.
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公开(公告)号：US10539432B2
公开(公告)日：2020-01-21
申请号：US15882437
申请日：2018-01-29
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Armin Satz
IPC: G01D5/22
Abstract: A sensor module may include a magnet with a magnetization in a first direction, and a sensor chip including a first sensing element and a second sensing element arranged on a plane defined by the sensor chip. The first direction may be substantially parallel to the main surface of the sensor chip. The first sensing element and the second sensing element may be sensitive to an in-plane component of a magnetic field along the first direction or may be sensitive to an in-plane component of the magnetic field perpendicular to the first direction. The first sensing element and the second sensing element may be positioned beyond an edge of the magnet along the first direction such that the first sensing element and the second sensing element protrude past the edge of the magnet along the first direction.
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公开(公告)号：US10274507B2
公开(公告)日：2019-04-30
申请号：US15909136
申请日：2018-03-01
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
Abstract: A magnetic sensor module includes a magnetic sensor having an in-plane axis and an out-of-plane axis, and including a differential pair of sensor elements spaced apart from each other. The differential pair of sensor elements are configured to generate measurement values in response to sensing a bias magnetic field. The magnetic sensor module further includes a back bias magnet including two opposing poles, where the back bias magnet is magnetized in a magnetized direction that is parallel to the in-plane axis and generates the bias magnetic field; a first magnetic flux guide disposed at a first pole and configured to redirect a first portion of the bias magnetic field towards the magnetic sensor along the in-plane axis; and a second magnetic flux guide disposed at a second pole and configured to redirect a second portion of the bias magnetic field towards the back bias magnet along the magnetized direction.
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15.发明授权公开(公告)号：US10254303B2
公开(公告)日：2019-04-09
申请号：US15149647
申请日：2016-05-09
Applicant: Infineon Technologies AG
Inventor： Klaus Grambichler , Gernot Binder , Jooil Park , Sehwan Kim
Abstract: A magnetic sensor may include a first sensing element and a second sensing element. The first sensing element may be capable of sensing a first component of a magnetic field that is non-parallel to an axis formed by an intersection of a first plane and a second plane. The first plane may be a plane in which a tooth wheel rotates, and the second plane may include a first surface of the first sensing element and a second surface of the second sensing element. The first component of the magnetic field may be on the second plane. The second sensing element may be capable of sensing a second component of the magnetic field. The second component of the magnetic field may be on the second plane.
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Patent Agency Ranking
公开(公告)号：US20150130446A1
公开(公告)日：2015-05-14
申请号：US14601385
申请日：2015-01-21
Applicant: Infineon Technologies AG
Inventor： Wolfgang Granig , Gernot Binder
IPC: G01D5/12
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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公开(公告)号：US12189000B2
公开(公告)日：2025-01-07
申请号：US18158826
申请日：2023-01-24
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Christoph Krall
Abstract: A magnetic field sensor includes a first sensor bridge circuit including a first plurality of magnetic field sensor elements and a second plurality of magnetic field sensor elements, wherein the first plurality of magnetic field sensor elements are positioned symmetrical to the second plurality of magnetic field sensor elements across a center of symmetry, wherein the first and the second pluralities of magnetic field sensor elements are separated by a first sensor pitch; and a second sensor bridge circuit including a third plurality of magnetic field sensor elements and a fourth plurality of magnetic field sensor elements, wherein the third plurality of magnetic field sensor elements are positioned symmetrical to the fourth plurality of magnetic field sensor elements across the center of symmetry, wherein the third and the fourth pluralities of magnetic field sensor elements are separated by a second sensor pitch that is equal to the first sensor pitch.
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公开(公告)号：US12013235B2
公开(公告)日：2024-06-18
申请号：US17588540
申请日：2022-01-31
Applicant: Infineon Technologies AG
Inventor： Joo Il Park , Gernot Binder , Dirk Hammerschmidt , Christoph Oswald , Armin Satz
Abstract: An absolute position measurement system includes a multipole magnet including alternating magnetic poles extending along a multipole extension direction, the multipole magnet has a linear changing configuration relative to a linear path and produces a magnetic field having a field strength that undergoes a sinusoidal change along the linear path due to the alternating magnetic poles and a linear change along the linear path according to the linear changing configuration relative to the linear path; and a magnetic sensor configured to move along the linear path. The magnetic sensor includes a first sensor element arrangement configured to generate a first sensor signal, a second sensor element arrangement configured to generate a second sensor signal that is phase shifted with respect to the first sensor signal, and a processing circuit configured to calculate an absolute position of the magnetic sensor based on the first sensor signal and the second sensor signal.
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公开(公告)号：US11150260B2
公开(公告)日：2021-10-19
申请号：US16428135
申请日：2019-05-31
Applicant: Infineon Technologies AG
Inventor： Gernot Binder
Abstract: A sensor device comprises a magnet having a magnetization in a first direction. Furthermore, the sensor device comprises a differential magnetic field sensor arranged on the magnet and having a first sensor element and a second sensor element, wherein the sensor elements are spaced apart in a second direction perpendicular to the first direction. The first sensor element and the second sensor element are designed to detect a magnetic field component in a third direction perpendicular to the first direction and perpendicular to the second direction.
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公开(公告)号：US20210156664A1
公开(公告)日：2021-05-27
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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