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公开(公告)号：US10908177B2
公开(公告)日：2021-02-02
申请号：US16924528
申请日：2020-07-09
Applicant: Infineon Technologies AG
Inventor： Simon Hainz , Johannes Guettinger
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.
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Patent Agency Ranking
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：US12146895B2
公开(公告)日：2024-11-19
申请号：US17064195
申请日：2020-10-06
Applicant: Infineon Technologies AG
Inventor： Johannes Guettinger , Bernhard Forster , Simon Hainz
Abstract: A monitoring device of a sensor may obtain a first signal at a point on a first branch of a signal path of the sensor. The monitoring device may obtain a second signal at a point on a second branch of the signal path of the sensor and may monitor the first signal for first characteristics indicated by the first signal. The monitoring device may monitor the second signal for second characteristics indicated by the second signal. The monitoring device may determine whether a quantity of first characteristics indicated by the first signal without a particular quantity of second characteristics being indicated by the second signal reaches a threshold quantity of first characteristics. The monitoring device may assess functionality of the signal path based on whether the quantity of first characteristics indicated by the first signal without a particular quantity of second characteristics being indicated by the second signal reaches the threshold quantity of first characteristics.
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公开(公告)号：US11585824B2
公开(公告)日：2023-02-21
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.
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公开(公告)号：US10852365B2
公开(公告)日：2020-12-01
申请号：US16023914
申请日：2018-06-29
Applicant: Infineon Technologies AG
Inventor： Johannes Guettinger , Simon Hainz , Armin Satz
IPC: G01R33/02 , G01R33/025 , G01R33/00 , G01R33/09 , H01L43/08
Abstract: A magnetic sensor includes a 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, where the bridge circuit is configured to generate a differential signal based on sensor signals generated by the plurality of magnetic field sensor elements. The bridge circuit further includes a plurality of resistors, where at least one resistor of the plurality of resistors is coupled in parallel to each of the plurality of magnetic field sensor elements.
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公开(公告)号：US10732194B2
公开(公告)日：2020-08-04
申请号：US15912985
申请日：2018-03-06
Applicant: Infineon Technologies AG
Inventor： Simon Hainz , Johannes Guettinger
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.
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