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11.发明申请公开(公告)号：US20220413004A1
公开(公告)日：2022-12-29
申请号：US17823152
申请日：2022-08-30
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 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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公开(公告)号：US20220120777A1
公开(公告)日：2022-04-21
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：US20200003797A1
公开(公告)日：2020-01-02
申请号：US16428135
申请日：2019-05-31
Applicant: Infineon Technologies AG
Inventor： Gernot BINDER
IPC: G01P3/44
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：US20190086236A1
公开(公告)日：2019-03-21
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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15.发明申请公开(公告)号：US20180364066A1
公开(公告)日：2018-12-20
申请号：US15623659
申请日：2017-06-15
Applicant: Infineon Technologies AG
Inventor： Armin SATZ , Helmut KOECK , Dirk HAMMERSCHMIDT , Gernot BINDER
IPC: G01D5/12
Abstract: Magnetic field position sensors and sensing methods are provided. A magnetic field position sensor includes at least two magnetic field sensor elements configured to generate sensor signals in response to a magnetic field, where the at least two magnetic field sensor elements are sensitive to a same magnetic field component of the magnetic field, and a sensor circuit configured to generate a differential measurement signal, substantially independent from homogeneous external magnetic stray fields, based on the sensor signals.
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Patent Agency Ranking
公开(公告)号：US20250035424A1
公开(公告)日：2025-01-30
申请号：US18765679
申请日：2024-07-08
Applicant: Infineon Technologies AG
Inventor： Gernot BINDER
Abstract: A sensor device contains a magnet, a first differential magnetic field sensor mounted on a first surface of the magnet, and a second differential magnetic field sensor mounted on a second surface of the magnet, the second surface being situated opposite the first surface.
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公开(公告)号：US20240318948A1
公开(公告)日：2024-09-26
申请号：US18735723
申请日：2024-06-06
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 comprising alternating magnetic poles extending along a multipole extension direction, the alternating magnetic poles generating a magnetic field. A magnetic sensor includes a first sensor element arrangement configured to generate a first signal in response to a first magnetic field component and a second sensor element arrangement configured to generate a second signal in response to a second magnetic field component. The absolute position measurement system is configured, as a position of the magnetic sensor relative to the multipole magnet changes, to generate a first oscillating sensor signal with decreasing first signal amplitude and to generate a second oscillating sensor signal with decreasing second signal amplitude based on the first and second signals. A processing circuit is configured to calculate an absolute position of the magnetic sensor based on the first oscillating sensor signal and the second oscillating sensor signal.
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公开(公告)号：US20240248155A1
公开(公告)日：2024-07-25
申请号：US18158826
申请日：2023-01-24
Applicant: Infineon Technologies AG
Inventor： Gernot BINDER , Christoph KRALL
CPC classification number: G01R33/06 , G01D5/14 , G01R15/20 , G01R33/077 , G01R33/09
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：US20230152125A1
公开(公告)日：2023-05-18
申请号：US18053821
申请日：2022-11-09
Applicant: Infineon Technologies AG
Inventor： Joo Il PARK , Se Hwan KIM , Klaus GRAMBICHLER , Gernot BINDER
Abstract: The herein disclosed innovative concept concerns a magnetic angle sensor and a method for operating the same. The sensor includes a magnetoresistive arrangement and a magnetic source being configured to be movable relative to the magnetoresistive arrangement. The magnetoresistive arrangement includes a first magnetoresistive element configured to generate a first output signal, a second magnetoresistive element configured to generate a second output signal, and a third magnetoresistive element configured to generate a third output signal. The first, second and third magnetoresistive elements are oriented relative to each other such that they form a symmetrical geometric arrangement with equal angular distances between each other.
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公开(公告)号：US20220393554A1
公开(公告)日：2022-12-08
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 , H02K7/00 , G01R33/07
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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