公开(公告)号：US20200003849A1

公开(公告)日：2020-01-02

申请号：US16023914

申请日：2018-06-29

Applicant: Infineon Technologies AG

Inventor： Johannes GUETTINGER ,  Simon HAINZ ,  Armin SATZ

IPC: G01R33/025 ,  G01R33/00 ,  G01R33/09

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.

公开(公告)号：US20190072416A1

公开(公告)日：2019-03-07

申请号：US15698266

申请日：2017-09-07

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ

IPC: G01D5/244

Abstract: A magnetic sensor may include one or more sensor components to detect a system-level error, associated with a sensor system that includes the magnetic sensor, based on a set of signal characteristics of a waveform corresponding to a magnetic field present at the magnetic sensor. The one or more sensor components may provide an indication of the system-level error in an output signal.

公开(公告)号：US20220107338A1

公开(公告)日：2022-04-07

申请号：US17064195

申请日：2020-10-06

Applicant: Infineon Technologies AG

Inventor： Johannes GUETTINGER ,  Bernhard FORSTER ,  Simon HAINZ

IPC: G01P21/02 ,  H04W24/08 ,  G01P3/44

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.

公开(公告)号：US20200049530A1

公开(公告)日：2020-02-13

申请号：US16655954

申请日：2019-10-17

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ

IPC: G01D5/244

Abstract: A magnetic sensor may detect a system-level error, associated with a sensor system that includes the magnetic sensor, based on one or more physical parameters as determined at the magnetic sensor. The magnetic sensor may provide an indication of the system-level error in an output signal. The one or more physical parameters may include a temperature at the magnetic sensor, a temperature drift of the magnetic sensor, a supply voltage at the magnetic sensor, an amount of humidity at the magnetic sensor, or an amount of pressure at the magnetic sensor.

公开(公告)号：US20190339340A1

公开(公告)日：2019-11-07

申请号：US15972437

申请日：2018-05-07

Applicant: Infineon Technologies AG

Inventor： Simon HAINZ

IPC: G01R33/09 ,  H01F7/02

Abstract: Magnetic sensors, sensor modules, and methods thereof are provided. A magnetic sensor includes a sensor arrangement including a plurality of magnetic field sensor elements electrically arranged in an asymmetrical bridge circuit, where a first total resistance of a first pair of sensor elements provided on a first side of the asymmetrical bridge circuit is different from a second total resistance of a second pair of sensor elements provided on a second side of the asymmetrical bridge circuit, and 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：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.