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公开(公告)号：US20180003776A1
公开(公告)日：2018-01-04
申请号：US15602923
申请日：2017-05-23
Applicant: Infineon Technologies AG
Inventor： Dieter Suess , Hubert Brueckl , Klemens Pruegl , Wolfgang Raberg , Armin Satz
CPC classification number: G01R33/0011 , G01R33/093 , G01R33/098
Abstract: The present disclosure relates to a magnetic sensor device having at least one magneto-resistive structure. The magneto-resistive structure comprises a magnetic free layer configured to generate a closed flux magnetization pattern in the free layer, and a magnetic reference layer having non-closed flux reference magnetization pattern; and a magnetic flux concentrator configured to increase a flux density of an external magnetic field in the magnetic free layer.
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公开(公告)号：US09606196B2
公开(公告)日：2017-03-28
申请号：US15067600
申请日：2016-03-11
Applicant: Infineon Technologies AG
Inventor： Armin Satz
CPC classification number: G01R33/091 , G01D5/145 , G01D11/245 , G01P3/487 , G01P3/488 , G01R33/0011 , G01R33/09
Abstract: The present disclosure provides for techniques to improve the sensitivity of magnetic sensor systems. One embodiment of a magnetic sensor system includes a magnetic biasing body comprised of a hard magnetic material and including a recess therein. The recess corresponds to a magnetic flux guidance surface of the magnetic biasing body. The magnetic sensor system also includes a magnetic sensing element arranged in or proximate to the recess. A magnetic flux concentrator, which is made of a soft magnetic material, is disposed in the recess between the magnetic flux guidance surface and the magnetic sensing element. Other techniques are also described.
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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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14.发明授权公开(公告)号：US09581657B2
公开(公告)日：2017-02-28
申请号：US14789751
申请日：2015-07-01
Applicant: Infineon Technologies AG
Inventor： Friedrich Rasbornig , Armin Satz , Christoph Schroers
CPC classification number: G01R33/0094 , G01R33/0029
Abstract: Devices, methods and systems are disclosed using a first magnetic field sensor of a first type and a second magnetic field sensor of a second type different from the first type. A signal from the first sensor may be used in a first magnetic field, range, and a signal from the second sensor may be used in a second magnetic field range.
Abstract translation: 使用第一类型的第一磁场传感器和不同于第一类型的第二类型的第二磁场传感器公开了装置，方法和系统。 可以在第一磁场，范围内使用来自第一传感器的信号，并且可以在第二磁场范围中使用来自第二传感器的信号。
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公开(公告)号：US20160011279A1
公开(公告)日：2016-01-14
申请号：US14789751
申请日：2015-07-01
Applicant: Infineon Technologies AG
Inventor： Friedrich Rasbornig , Armin Satz , Christoph Schroers
CPC classification number: G01R33/0094 , G01R33/0029
Abstract: Devices, methods and systems are disclosed using a first magnetic field sensor of a first type and a second magnetic field sensor of a second type different from the first type. A signal from the first sensor may be used in a first magnetic field, range, and a signal from the second sensor may be used in a second magnetic field range.
Abstract translation: 使用第一类型的第一磁场传感器和不同于第一类型的第二类型的第二磁场传感器公开了装置，方法和系统。 可以在第一磁场，范围内使用来自第一传感器的信号，并且可以在第二磁场范围中使用来自第二传感器的信号。
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Patent Agency Ranking
公开(公告)号：US20150185297A1
公开(公告)日：2015-07-02
申请号：US14141660
申请日：2013-12-27
Applicant: Infineon Technologies AG
Inventor： Juergen Zimmer , Armin Satz , Wolfgang Raberg , Hubert Brueckl , Dieter Suess
IPC: G01R33/09
CPC classification number: G01R33/093 , G01R33/095 , G01R33/096 , G01R33/098
Abstract: A device according to an embodiment may comprise a magneto-resistive structure comprising a magnetic free layer with a spontaneously generated in-plane closed flux magnetization pattern and a magnetic reference layer having a non-closed flux magnetization pattern.
Abstract translation: 根据实施例的装置可以包括磁阻结构，其包括具有自发生成的平面内磁通磁化模式的磁性自由层和具有非闭合磁通磁化模式的磁性参考层。
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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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18.发明申请公开(公告)号：US20230066358A1
公开(公告)日：2023-03-02
申请号：US17461117
申请日：2021-08-30
Applicant: Infineon Technologies AG
Inventor： Dieter Suess , Udo Ausserlechner , Armin Satz , Klemens Pruegl , Wolfgang Raberg , Milan Agrawal , Johannes Guettinger , Michael Kirsch
IPC: G01R33/07
Abstract: The described techniques facilitate the use of a magnetic field sensor that implements the same magnetic layer stack for the detection of the x, y, and z components of an external magnetic field. The sensor advantageously is insensitive to orthogonal stray fields and operates with a reduced offset compared to conventional magnetic field sensors. The linear regime implemented by the sensor to facilitate magnetic field detection may also be adjusted per application by tuning the current strength.
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公开(公告)号：US11287252B2
公开(公告)日：2022-03-29
申请号：US17027185
申请日：2020-09-21
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Armin Satz , Ferdinand Gastinger
Abstract: Magnetic position sensors, systems and methods are disclosed. In an embodiment, a position sensing system includes a magnetic field source; and a sensor module spaced apart from the magnetic field source, at least one of the magnetic field source or the sensor module configured to move relative to the other along a path, the sensor module configured to determine a position of the magnetic field source relative to the sensor module from a nonlinear function of a ratio of a first component of a magnetic field of the magnetic field source to a second component of the magnetic field of the magnetic field source.
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公开(公告)号：US11009568B2
公开(公告)日：2021-05-18
申请号：US16001060
申请日：2018-06-06
Applicant: Infineon Technologies AG
Inventor： Dirk Hammerschmidt , Armin Satz , Juergen Zimmer
Abstract: A magnetoresistive sensor includes a magnetic reference layer. The magnetic reference layer includes a permanent closed flux magnetization pattern of a predetermined rotational direction. Furthermore, the magnetoresistive sensor includes a magnetic free layer. The magnetic free layer has a total lateral area that is smaller than a total lateral area of the magnetic reference layer. A centroid of the magnetic free layer is laterally displaced with respect to a centroid of the magnetic reference layer.
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