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公开(公告)号：US20210102853A1
公开(公告)日：2021-04-08
申请号：US16591806
申请日：2019-10-03
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT , Christof MICHENTHALER
IPC: G01L3/10
Abstract: A method of determining a torque applied to a rotatable shaft is provided. The method includes transmitting a first electro-magnetic transmit signal towards a first mutually coupled structure mechanically coupled to the rotatable shaft, converting, by the first mutually coupled multitrack structure, the first electro-magnetic transmit signal into a first electro-magnetic receive signal; receiving the first electro-magnetic receive signal; evaluating the received first electro-magnetic receive signal; and determining the torque applied to the rotatable shaft based on the evaluated first electro-magnetic receive signal.
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公开(公告)号：US20200341024A1
公开(公告)日：2020-10-29
申请号：US16928446
申请日：2020-07-14
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT
Abstract: A method of sensing a rotation speed of an encoder includes generating measurement values by a plurality of sensor elements in response to sensing a magnetic field, where the plurality of sensor elements are grouped into a first shifted pair, a central pair, and a second shifted pair; generating a first shifted differential measurement signal based on the measurement values generated by the first shifted pair, a central differential measurement signal based on the measurement values generated by the central pair, and a second shifted differential measurement signal based on the measurement values generated by the second shifted pair; and generating an output signal based on detecting the first shifted differential measurement signal, the central differential measurement signal, and the second shifted differential measurement signal crossing at least one threshold.
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公开(公告)号：US20190064287A1
公开(公告)日：2019-02-28
申请号：US15686307
申请日：2017-08-25
Applicant: Infineon Technologies AG
Inventor： Helmut KOECK , Simon HAINZ , Dirk HAMMERSCHMIDT
IPC: G01R33/07
CPC classification number: G01R33/07 , G01R33/072
Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor includes a plurality of magnetic field sensor elements, each configured to generate a sensor signal in response to the magnetic field impinging thereon. The plurality of sensor elements are grouped into a first group from which a first measurement signal is derived and a second group from which a second measurement signal is derived, and the first measurement signal and the second measurement signal having phase difference of 90°. The magnetic sensor further includes a sensor circuit configured to receive the first measurement signal and the second measurement signal, and apply a signal conversion algorithm thereto to generate a converted measurement signal having an increased frequency with respect to the first measurement signal and the second measurement signal.
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34.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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35.发明申请公开(公告)号：US20180356474A1
公开(公告)日：2018-12-13
申请号：US16001060
申请日：2018-06-06
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT , Armin SATZ , Juergen ZIMMER
CPC classification number: G01R33/093 , H01F41/308 , H01L43/08 , H01L43/10
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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Patent Agency Ranking
公开(公告)号：US20180188308A1
公开(公告)日：2018-07-05
申请号：US15393779
申请日：2016-12-29
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT , Manfred STEINER
IPC: G01R31/02
CPC classification number: G01R31/025
Abstract: Leakage current detection systems and detection methods are provided. A leakage current detection system includes a passive bridge circuit including a first branch having a first output and a second branch having a second output, a first output pad electrically connected to the first output, a second output pad electrically connected to the second output, a leakage surge structure disposed between the first output pad and the second output pad, where the leakage surge structure is connected to a low-ohmic node and is configured to draw a leakage current from the passive bridge circuit and pull voltages at the first and the second output pads in a same direction on a condition that the leakage current flows through at least one element of the passive bridge circuit, and a processing device configured to monitor for the leakage current and output a monitored result.
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公开(公告)号：US20170055850A1
公开(公告)日：2017-03-02
申请号：US15252954
申请日：2016-08-31
Applicant: Infineon Technologies AG
Inventor： Peter BOGNER , Dirk HAMMERSCHMIDT
IPC: A61B5/0205 , A61B5/00 , A61B5/0476 , A61B5/026 , A61B5/0215 , A61B5/0402
CPC classification number: A61B5/02055 , A61B5/0015 , A61B5/002 , A61B5/0031 , A61B5/0205 , A61B5/0215 , A61B5/026 , A61B5/0402 , A61B5/0476 , A61B5/6876 , A61B5/7225 , A61B5/7246 , A61B5/7278 , A61B2503/40 , A61B2560/0209 , A61B2562/0247 , A61B2562/028 , H03M1/462
Abstract: A sensor device includes an implantable sensor unit, a transponder unit, and a wired connection flexibly and electrically connecting the implantable sensor unit and the transponder unit. The implantable sensor unit is adapted to be implanted into a body. The implantable sensor unit includes a comparator and a sensor adapted to sense a characteristic of the body in vivo. The sensor is adapted to supply an analogue signal to a first input of the comparator. The transponder unit is adapted to supply a control signal to the implantable sensor unit and to receive an output signal of the comparator. The implantable sensor unit is adapted to supply an analogue approximation signal to a second input of the comparator in response to the control signal. The wired connection is adapted to transmit the control signal and the output signal of the comparator.
Abstract translation: 传感器装置包括可植入传感器单元，应答器单元和有线连接，其可灵活地和电连接植入式传感器单元和应答器单元。 植入式传感器单元适于植入体内。 可植入传感器单元包括比较器和用于感测身体体内特征的传感器。 传感器适于将模拟信号提供给比较器的第一输入端。 应答器单元适于向可植入传感器单元提供控制信号并接收比较器的输出信号。 可植入传感器单元适于响应于控制信号向比较器的第二输入端提供模拟近似信号。 有线连接适用于发送比较器的控制信号和输出信号。
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公开(公告)号：US20240393198A1
公开(公告)日：2024-11-28
申请号：US18323461
申请日：2023-05-25
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT , Christof MICHENTHALER
IPC: G01L3/08
Abstract: A torque measurement system includes a first rotatable carrier structure and a second rotatable carrier structure mechanically coupled to a shaft; a first metamaterial track coupled to and configured to co-rotate with the first rotatable carrier structure; a second metamaterial track coupled to and configured to co-rotate with the second rotatable carrier structure; and a low-friction material arranged between the first and the second rotatable carrier structures. The first and the second metamaterial tracks are spaced apart by a predetermined distance and are mutually coupled to each other by a torque-dependent coupling. Responsive to a torque applied to the shaft, the first metamaterial track is configured to undergo a rotational shift relative to the second metamaterial track. The low-friction material provides a low-friction rotational shift between the first rotatable carrier structure and the second rotatable carrier structure such that the predetermined distance is constant during the rotational shift.
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公开(公告)号：US20230400372A1
公开(公告)日：2023-12-14
申请号：US18454834
申请日：2023-08-24
Applicant: Infineon Technologies AG
Abstract: A sensor system includes a first metamaterial track mechanically coupled to a rotational shaft configured to rotate about a rotational axis, wherein the first metamaterial track is arranged at least partially around the rotational axis, and wherein the first metamaterial track includes a first array of elementary structures; at least one transmitter configured to transmit a first continuous wave towards the first metamaterial track, wherein the first metamaterial track is configured to convert the first continuous wave into a first receive signal based on a rotational parameter of the rotational shaft; and at least one quadrature continuous-wave receiver configured to receive the first receive signal, acquire a first measurement of a first property of the first receive signal, and determine a measurement value for the rotational parameter of the rotational shaft based on the first measurement.
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公开(公告)号：US20230073677A1
公开(公告)日：2023-03-09
申请号：US18049751
申请日：2022-10-26
Applicant: Infineon Technologies AG
Inventor： Dirk HAMMERSCHMIDT , Udo HAFNER , Benjamin KOLLMITZER
Abstract: An autocalibration method includes generating at least one sensor signal in response to measuring a physical quantity; compensating the at least one sensor signal based on at least one compensation parameter to generate at least one compensated sensor signal; generating the at least one compensation parameter based on the at least one sensor signal or the at least one compensated sensor signal; comparing each of the at least one compensation parameter to a respective tolerance range; on a condition that each of the at least one compensation parameter is within its respective tolerance range, transmitting the at least one compensation parameter as at least one validated compensation parameter to be used for compensating the at least one sensor signal; and on a condition that at least one of the at least one compensation parameter is not within its respective tolerance range, generating a fault detection signal.
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