公开(公告)号：US20230041154A1

公开(公告)日：2023-02-09

申请号：US17880020

申请日：2022-08-03

Applicant: Infineon Technologies AG

Inventor： Wolfgang SCHWEIKER ,  Simone FONTANESI ,  Simon HAINZ ,  Manfred SCHINDLER ,  Michael WEBER

IPC: G01P3/481

Abstract: A wheel sensor arrangement can include a first wheel speed sensor and a second wheel speed sensor. The first wheel speed sensor can include or be implemented with a first semiconductor die and can provide data regarding a speed of a rotating wheel. The second wheel speed sensor can also include or be implemented with a second semiconductor die and can provide data regarding the speed of the rotating wheel. The second semiconductor die can be galvanically isolated from the first semiconductor die. The wheel sensor arrangement can include a mold housing that forms around the first wheel speed sensor and the second wheel speed sensor. The mold housing can include a separation feature between the first sensor and the second sensor.

公开(公告)号：US20190277874A1

公开(公告)日：2019-09-12

申请号：US15912985

申请日：2018-03-06

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ ,  Johannes GUETTINGER

IPC: G01P3/481

Abstract: A magnetic sensor includes a first bridge circuit including a plurality of magnetic field sensor elements, each configured to generate a sensor signal in response to the magnetic field impinging thereon. The first bridge circuit is configured to generate a first differential signal based on sensor signals generated by the plurality of magnetic field sensor elements. The plurality of magnetic field sensor elements include a first, second, and third pair of sensor elements. The first pair are arranged at center region of the magnetic sensor, the second pair are arranged at a first side region of the magnetic sensor and are displaced a first distance from the first pair, and the third pair are arranged at a second side region of the magnetic sensor, opposite to the first side region, and are displaced a second distance from the first pair that is substantially equal to the first distance.

公开(公告)号：US20230152344A1

公开(公告)日：2023-05-18

申请号：US17854293

申请日：2022-06-30

Applicant: Infineon Technologies AG

Inventor： Christoph SCHROERS ,  Simon HAINZ ,  Alessandro PETRI ,  Massimiliano ZILLI

IPC: G01P3/487 ,  G01P3/481

CPC classification number: G01P3/487 ,  G01P3/4815

Abstract: A magnetic sensor configured to detect a rotation of an object includes at least one sensor element configured to generate at least one sensor signal based on a magnetic field that is modulated by the rotation of the object; a sensor circuit configured to generate a data transmission signal based on the at least one sensor signal, wherein the data transmission signal comprises a plurality of data transmission blocks; and a memory configured to store transmission block status information indicative of whether or not one of the plurality of data transmission blocks has been triggered for transmission. The sensor circuit is configured to detect an interrupt event that disrupts the transmission of the data transmission signal and avoid a complete loss of a data transmission block due to the detected interrupt event based on the transmission block status information present at a time the interrupt event is detected.

公开(公告)号：US20190011292A1

公开(公告)日：2019-01-10

申请号：US15643073

申请日：2017-07-06

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ ,  Lorenzo COCEANI ,  Tobias WERTH

IPC: G01D5/249

Abstract: A magnetic sensor may determine information, associated with a magnet wheel, that is associated with a rotational speed of the magnet wheel or a rotational direction of the magnet wheel. The magnetic sensor may determine information, associated with the magnetic sensor, that is associated with a property of the magnetic sensor. The magnetic sensor may provide a signal including the information associated with the magnet wheel and the information associated with the magnetic sensor. The signal may be provided using a pulse width modulation technique associated with at least three signal levels and at least two signal thresholds. A period of time during which the information associated with the magnetic sensor is provided may at least partially overlap a period of time during which the information associated with the magnet wheel is provided, or may be provided without a time offset from the information associated with the magnet wheel.

公开(公告)号：US20220128587A1

公开(公告)日：2022-04-28

申请号：US17081181

申请日：2020-10-27

Applicant: Infineon Technologies AG

Inventor： Johannes GUETTINGER ,  Peter Alfred FRIESSNEGGER ,  Simon HAINZ

IPC: G01P3/44

Abstract: A sensor device includes at least one first sensor element that generates a first sensor signal based on sensing a varying magnetic field; at least one second sensor element that generates a second sensor signal based on sensing the varying magnetic field; a signal tracking circuit that generates a trigger signal having trigger pulses that are generated based on crossings of the first sensor signal with an adaptive threshold and extracts vibration relevant information using the first sensor signal and the second sensor signal; an output controller that generates an output signal having output pulses that are triggered by the trigger pulses during a non-vibration event and suppress the output pulses during an entire duration of a vibration event; and a vibration detection circuit that detects the vibration event based on the extracted vibration relevant information and indicates the vibration event to the output controller.

公开(公告)号：US20200341025A1

公开(公告)日：2020-10-29

申请号：US16924528

申请日：2020-07-09

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ ,  Johannes GUETTINGER

IPC: G01P3/481

Abstract: A magnetic sensor includes a first bridge circuit including a plurality of magnetic field sensor elements, each configured to generate a sensor signal in response to the magnetic field impinging thereon. The first bridge circuit is configured to generate a first differential signal based on sensor signals generated by the plurality of magnetic field sensor elements. The plurality of magnetic field sensor elements include a first, second, and third group of sensor elements. The first group is arranged at center region of the magnetic sensor, the second group is arranged at a first side region of the magnetic sensor and are displaced a first distance from the first group, and the third group is arranged at a second side region of the magnetic sensor, opposite to the first side region, and is displaced a second distance from the first group that is substantially equal to the first distance.

公开(公告)号：US20170241812A1

公开(公告)日：2017-08-24

申请号：US15052239

申请日：2016-02-24

Applicant: Infineon Technologies AG

Inventor： Klaus GRAMBICHLER ,  Tobias WERTH ,  Simon HAINZ

IPC: G01D5/247

CPC classification number: G01D5/247 ,  G01D3/032

Abstract: A magnetic circuit may include a magnetic sensor. The magnetic sensor may determine an adjustment factor associated with calculating a variable switching threshold. The variable switching threshold may be a configurable switching threshold based on which the magnetic sensor provides outputs associated with a speed signal corresponding to a rotation of a tooth wheel. The magnetic sensor may provide an output, associated with the speed signal, based on the variable switching threshold.

公开(公告)号：US20240118111A1

公开(公告)日：2024-04-11

申请号：US17938873

申请日：2022-10-07

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ ,  Matthias POHL

IPC: G01D5/16 ,  G01R33/09

CPC classification number: G01D5/16 ,  G01R33/098

Abstract: A sensor module may include a back-bias magnet with a magnetization in a first direction. The sensor module may include a sensor chip including a first set of tunnel magnetoresistive (TMR) sensing elements. The sensor chip may be configured to determine a characteristic of a first magnetic field component using the first set of TMR sensing elements, and to generate a sensor signal based at least in part on the characteristic of the first magnetic field component. A value of the sensor signal may correspond to a linear position of a ferromagnetic object.

公开(公告)号：US20210333337A1

公开(公告)日：2021-10-28

申请号：US17370040

申请日：2021-07-08

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ

IPC: G01R33/09 ,  H01F7/02

Abstract: A magnetic sensor includes a sensor arrangement including a plurality of resistive elements electrically arranged in an asymmetrical bridge circuit, where the plurality of resistive elements include a plurality of magnetic field sensor elements and a plurality of non-magnetic sensitive resistive elements. Moreover, a first total resistance of a first pair of resistive elements is different from a second total resistance of a second pair of resistive elements. A first leg of the asymmetrical bridge circuit includes a first magnetic field sensor element and a first non-magnetic sensitive resistive element. A second leg of the asymmetrical bridge circuit includes a second magnetic field sensor element and a second non-magnetic sensitive resistive element. The asymmetrical bridge circuit is configured to generate a differential signal based on sensor signals generated by the plurality of magnetic field sensor elements in response to a magnetic field impinging thereon.

公开(公告)号：US20200319271A1

公开(公告)日：2020-10-08

申请号：US16906142

申请日：2020-06-19

Applicant: Infineon Technologies AG

Inventor： Helmut KOECK ,  Simon HAINZ ,  Dirk HAMMERSCHMIDT

IPC: G01R33/07

Abstract: A magnetic sensor is 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 a phase difference based on different phases. 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.