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公开(公告)号：US20230213547A1
公开(公告)日：2023-07-06
申请号：US18181755
申请日：2023-03-10
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI , Filippo GRILLOTTI , Alessandro PETRI , Massimiliano ZILLI
Abstract: A control circuit for a wheel speed sensor is provide. The control circuit includes an input interface configured to receive high-resolution wheel speed data and low-resolution wheel speed data; and circuitry configured to determine information on a functional state of the wheel speed sensor using the high-resolution data and the low-resolution data. The circuitry is configured to detect a failure state of the wheel speed sensor if a number of signal events which are signaled by the high-resolution wheel speed data between a first signal event and a second signal event deviates from an expected number. The first signal event and the second signal event are signaled by the low-resolution wheel speed data.
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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.
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公开(公告)号：US20190317120A1
公开(公告)日：2019-10-17
申请号：US15950642
申请日：2018-04-11
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI , Tobias WERTH , Peter Alfred FRIESSNEGGER
Abstract: Some examples described herein may include receiving, by a sensor device, differential measurement signals from at least two sensor elements; generating, by the sensor device, fixed-calibrated channels from the differential measurement signals, generating, by the sensor device, self-calibrated channels from the differential measurement signals; determining, by the sensor device, offsets associated with the differential measurement signals based on the self-calibrated channels; determining, by the sensor device, whether a vibration occurred within the differential measurement signals based on the fixed-calibrated channels; and providing, by the sensor device, phase measurement information based on the offsets and whether the vibration occurred, wherein the phase measurement information identifies a phase of the rotatable object.
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4.发明申请公开(公告)号：US20250116687A1
公开(公告)日：2025-04-10
申请号：US18905524
申请日：2024-10-03
Applicant: Infineon Technologies AG
Inventor： Gernot BINDER , Thomas HAFNER , Christoph KRALL , Simone FONTANESI , Johannes GÜTTINGER
Abstract: A sensor device includes an electrically conductive carrier and a magnetic field sensor mounted on the electrically conductive carrier. The magnetic field sensor includes a first pair of first sensing elements configured to provide a first differential signal representative of a magnetic field generated by an electrical current through an electrical conductor and by eddy currents generated in the electrically conductive carrier. The magnetic field sensor further includes a second pair of second sensing elements configured to provide a second differential signal representative of a magnetic field generated by the eddy currents and independent of a magnetic field generated by the electrical current through the electrical conductor. The sensor device further includes a unit configured to provide an output signal based on a difference or a sum including the first differential signal and the second differential signal.
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公开(公告)号：US20220268803A1
公开(公告)日：2022-08-25
申请号：US17183763
申请日：2021-02-24
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI
IPC: G01P3/56
Abstract: A magnetic sensor includes a plurality of pairs of sensor elements, with each pair of sensor elements including two sensor elements that are oppositely disposed on a circumference of a circle arranged in a sensor plane of the magnetic sensor; and a sensor circuit configured to generate a first pulsed output signal based on a selected differential measurement signal that is indicative of a rotational speed of an object. The sensor circuit is configured to generate a plurality of differential measurement signals, one for each of the plurality of pairs of sensor elements, where each of the plurality of differential measurement signals is derived from sensor signals generated by a corresponding pair of sensor elements. The sensor circuit is further configured to select a differential measurement signal having a greatest magnitude from among the plurality of differential measurement signals as the selected differential measurement signal.
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Patent Agency Ranking
公开(公告)号：US20210018577A1
公开(公告)日：2021-01-21
申请号：US17063961
申请日：2020-10-06
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI , Klaus GRAMBICHLER , Tobias WERTH
IPC: G01R33/09 , G01R33/025
Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, adjust an offset of the measurement signal according to an offset update algorithm and a first characteristic of the measurement signal, generate a pulsed output signal having pulses that are generated based on the adjusted measurement signal crossing the switching threshold, and selectively enable and disable the offset update algorithm based on a second characteristic of the measurement signal.
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公开(公告)号：US20220113164A1
公开(公告)日：2022-04-14
申请号：US17495973
申请日：2021-10-07
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI
IPC: G01D5/16
Abstract: A sensor system includes a first group of sensor elements sensitive to a magnetic field in a predetermined direction, wherein the first group of sensor elements supplies a first signal indicative of the magnetic field in the predetermined direction. Further, the sensor system includes a second group of sensor elements sensitive to the magnetic field in the predetermined direction, wherein the second group of sensor elements supplies a second signal having a relative phase shift relative to the first signal. A combination of the first signal and the second signal indicates a rotational angle of an object.
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公开(公告)号：US20210096002A1
公开(公告)日：2021-04-01
申请号：US17030812
申请日：2020-09-24
Applicant: Infineon Technologies AG
Inventor： Alessandro PETRI , Simone FONTANESI , Filippo GRILLOTTI , Andrea POSSEMATO , Massimiliano ZILLI
Abstract: A periodic sensor signal representing a varying rotation angle detected by a rotation angle sensor is compared to a number of thresholds to detect threshold crossings of the periodic sensor signal. An output signal including a pulse pattern at the time of a threshold crossing may be generated only if the direction of rotation has not changed since an immediately preceding threshold crossing. A number of consecutive threshold crossings which take place without a change in the direction of rotation may be counted and an update of the offset register is performed only if the number of consecutive threshold crossings which take place without a change in the direction of rotation is equal to or higher less than the number of thresholds.
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公开(公告)号：US20200096577A1
公开(公告)日：2020-03-26
申请号：US16140887
申请日：2018-09-25
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI , Klaus GRAMBICHLER , Tobias WERTH
IPC: G01R33/09 , G01R33/025
Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, compare the measurement signal to a switching threshold, generate a pulsed output signal having pulses that are generated based on the measurement signal crossing the switching threshold, measure a first characteristic of the measurement signal, update an offset of the switching threshold according to an offset update algorithm based on the measured first characteristic of the measurement signal, and selectively enable and disable the offset update algorithm based on at least a second characteristic of the measurement signal.
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公开(公告)号：US20250060394A1
公开(公告)日：2025-02-20
申请号：US18793258
申请日：2024-08-02
Applicant: Infineon Technologies AG
Inventor： Simone FONTANESI , Gaetano FORMATO
Abstract: The present disclosure proposes a current sensor package with self-calibration functionality. No external microcontroller is needed. The current sensor package includes an integrated current sensor circuit configured to generate an analog sensor signal in response to an electrical current. The current sensor package includes an ADC coupled to the integrated current sensor circuit and configured to convert the analog sensor signal to a digital sensor signal. The current sensor package includes a digital processor coupled to the ADC and configured to implement/run a calibration procedure for the integrated current sensor circuit based on the digital sensor signal and predefined target values. The current sensor package includes a non-volatile memory coupled to the digital processor and configured to store the predefined target values and calibration parameters found during the calibration procedure.
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