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公开(公告)号：US10996287B2
公开(公告)日：2021-05-04
申请号：US16778686
申请日：2020-01-31
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A method for operating a Hall sensor device that includes a Hall effect region and a plurality of electrical contact regions configured to provide electrical signals to and from the Hall effect region using a plurality of control terminals is provided. Each electrical contact region is formed in a respective well that adjoins the Hall effect region, and each control terminal is configured to control a conductance in an associated well. The method includes selectively applying control signals to a first subset of the plurality of control terminals to form channels conducting majority carriers of a first conductivity type in the associated wells during a first operating phase; and selectively applying control signals to a different second subset of the plurality of control terminals to form channels conducting majority carriers of the first conductivity type in the associated wells during a second operating phase.
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公开(公告)号：US10950377B2
公开(公告)日：2021-03-16
申请号：US15874275
申请日：2018-01-18
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A magnetic set-up for use in a rotary encoder is disclosed. The set-up includes a permanent magnet arrangement including at least one permanent magnet, which is rotatable with respect to a rotation axis, and a soft magnetic sleeve encompassing the rotation axis and thus the permanent magnet arrangement for shielding against external magnetic fields. The at least one permanent magnet includes a through-hole, which extends along the rotation axis, so that the permanent magnet fully extends around the rotation axis.
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公开(公告)号：US10942229B2
公开(公告)日：2021-03-09
申请号：US16781322
申请日：2020-02-04
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A method for correcting the output of a Hall effect device for thermal electromotive force (thermo-EMF) utilizing the steps of: (1) supplying energy to the Hall effect device, (2) measuring a first output of the Hall effect device as a result of the supplying energy, (3) stopping the supply of energy to the Hall effect device, (4) waiting a period of time, (5) measuring a second output of the Hall device in response to a temperature difference between the output measurement location and a reference point, and (6) combining the first and second outputs to determine an output corrected for thermo-EMF.
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公开(公告)号：US10852367B2
公开(公告)日：2020-12-01
申请号：US14812907
申请日：2015-07-29
Applicant: Infineon Technologies AG
Inventor： Helmut Koeck , Tobias Werth , Frank Heinrichs , Udo Ausserlechner
Abstract: An embodiment of a magnetic-field sensor includes a magnetic-field sensor arrangement and a magnetic body which has, for example, a non-convex cross-sectional area with regard to a cross-sectional plane running through the magnetic body, the magnetic body having an inhomogeneous magnetization.
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15.发明授权公开(公告)号：US10801828B2
公开(公告)日：2020-10-13
申请号：US15848139
申请日：2017-12-20
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A magnetic angle sensing system for detecting a rotation angle of a magnetic field source arranged rotatably around a rotation axis, the magnetic angle sensing system including at least two magnetic field sensing elements that are located in/on a plane, are not arranged on a single straight line through the rotation axis, and are configured to provide output signals that are functions of the same magnetic field component which is in parallel to the rotation axis. The system also including a processor that is arranged to determine the rotation angle from an angle between a pointer and a reference direction, wherein the pointer is determined based on the output signals of the at least two magnetic field sensing elements.
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Patent Agency Ranking
公开(公告)号：US10578419B2
公开(公告)日：2020-03-03
申请号：US15713877
申请日：2017-09-25
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Wolfgang Granig
Abstract: A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic field source coupled to the shaft; a first magnetic angle sensor configured to generate a first signal that represents a first angle based on a first diametric magnetic field from the magnetic field source applied to the first magnetic angle sensor; a second magnetic angle sensor configured to generate a second signal that represents a second angle based on a second diametric magnetic field from the magnetic field source applied to the second magnetic angle sensor; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
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公开(公告)号：US10564055B2
公开(公告)日：2020-02-18
申请号：US16050271
申请日：2018-07-31
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A stress sensor includes a semiconductor die to which a mechanical stress is applied. The semiconductor die includes at least one bipolar junction transistor; at least one current source configured to inject at least one current through the at least one bipolar junction transistor; and a processing circuit configured to measure a first current gain and a second current gain of the at least one bipolar junction transistor based on the at least one injected current, to determine a first mechanical stress level based on the first current gain, to determine a second mechanical stress level based on the second current gain, and to generate a mechanical stress level signal based on the first mechanical stress level and the second mechanical stress level, wherein the mechanical stress level signal represents the applied mechanical stress, at least a portion of which is applied to the at least one bipolar junction transistor.
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公开(公告)号：US10551216B2
公开(公告)日：2020-02-04
申请号：US15446349
申请日：2017-03-01
Applicant: Infineon Technologies AG
Inventor： Leo Aichriedler , Udo Ausserlechner , Peter Slama
Abstract: A sensor arrangement and an e-bike that includes the sensor arrangement are provided. The sensor arrangement includes a rotatable driving shaft for an e-bike extending along a rotation axis and includes a bore extending from a first end face of the rotatable driving shaft along the rotation axis, a magnet module arranged within the bore and coupled to the rotatable driving shaft, the magnet module configured to generate a magnetic field within the bore, and at least one sensing element configured to sense a rotation of the magnetic field in response to rotation of the rotatable driving shaft.
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公开(公告)号：US10481032B2
公开(公告)日：2019-11-19
申请号：US15232432
申请日：2016-08-09
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Mario Motz
Abstract: Embodiments relate to stress compensation in differential sensors. In an embodiment, instead of compensating for stress on each sensor element independently, stress compensation circuitry aims to remove stress-related mismatch between two sensor elements using the sensor elements themselves to detect the mismatch. A circuit can be implemented in embodiments to detect mechanical stress-related mismatch between sensor elements using the sensor elements, and tune the output signal by a compensation factor to eliminate the mismatch. Embodiments are therefore less complicated and less expensive than conventional approaches. While embodiments have applicability to virtually any differential sensor, including magnetic field, pressure, temperature, current and speed, an example embodiment discussed herein relates to magnetic field.
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公开(公告)号：US20190285707A1
公开(公告)日：2019-09-19
申请号：US16292823
申请日：2019-03-05
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A multi-contact Hall plate having four contacts or a multiple of four contacts, wherein each of the contacts is arranged substantially equally distributed along an edge region of the Hall plate, and each of the contacts is connected to one of the four terminals.
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