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公开(公告)号：US11831208B2
公开(公告)日：2023-11-28
申请号：US17232523
申请日：2021-04-16
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
IPC: G01B7/14 , G01B7/30 , H01F5/00 , H02K11/225 , H05K1/16 , H05K1/18 , H05K1/02 , H02K3/26 , G01D5/20 , G01B7/00 , G01B7/004
CPC classification number: H02K11/225 , G01D5/2046 , G01D5/2053 , G01D5/2066 , G01D5/2073 , H02K3/26 , H05K1/0216 , H05K1/165 , H05K1/181 , G01B7/003 , G01B7/004 , H02K2203/03 , H05K2201/09281 , H05K2201/10151 , H05K2201/10492 , H05K2201/10727 , H05K2201/10734
Abstract: A device includes a substrate with an excitation coil configured to generate a magnetic field in reaction to an input signal fed in, and with a pickup coil arrangement configured to generate an output signal in reaction to a magnetic field. The excitation coil includes one or more turns arranged around the pickup coil arrangement in a ring-shaped manner in a plan view of the substrate plane. The device further includes a chip package comprising at least one electrical connection connected to the pickup coil arrangement by means of a signal-carrying conductor. In accordance with the concept described herein, the chip package is positioned on the substrate in such a way that the signal-carrying conductor and the one or more turns of the excitation coil do not overlap in a plan view of the substrate plane.
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公开(公告)号：US11747130B2
公开(公告)日：2023-09-05
申请号：US17331978
申请日：2021-05-27
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
CPC classification number: G01B7/30 , G01D5/204 , G01D5/2006
Abstract: An inductive angle sensor includes a stator component and a rotor component that is rotatable relative thereto about an axis of rotation. The rotor component has an inductive target with k-fold symmetry. The stator component has a first single pickup coil with k-fold symmetry and a second single pickup coil with the same k-fold symmetry. The first single pickup coil is rotated around the axis of rotation in relation to the second single pickup coil. The inductive target is stretched along a first axis that runs perpendicularly to the axis of rotation so that a contour outline, as seen in plan view, of the inductive target has an elliptical shape, and the first single pickup coil is stretched along a second axis that runs perpendicularly to the axis of rotation so that a contour outline, as seen in plan view, of the first single pickup coil has an elliptical shape.
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公开(公告)号：US11592500B2
公开(公告)日：2023-02-28
申请号：US17220419
申请日：2021-04-01
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: An embodiment of a magnetic-field sensor includes a magnetic-field sensor arrangement and a magnetic body which has, for example, an inhomogeneous magnetization. The magnetic body has a recess facing the magnetic-field sensor arrangement and resulting in a non-convex cross-sectional area, the magnetic body is annular or comprises an annular section, and the magnetic body is fixedly arranged with respect to the magnetic-field sensor arrangement and forms a back-bias magnet for the magnetic-field sensor arrangement.
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公开(公告)号：US11543231B2
公开(公告)日：2023-01-03
申请号：US16949825
申请日：2020-11-16
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: An inductive angle sensor is provided with a stator with an excitation oscillating circuit and a pickup coil arrangement and also with a rotor which is arranged rotatably with respect to the stator and comprises an inductive target arrangement. The excitation oscillating circuit can be energizable with an alternating current, in order to induce an induction current in the target arrangement, and the target arrangement can be designed to generate a magnetic field in reaction to the induction current, which magnetic field in turn generates induction signals in the pickup coil arrangement. The angle sensor further comprises a circuit that is designed to derive an induction strength signal representing the signal strength of the induction signals from the induction signals and to ascertain the spatial clearance between the rotor and the stator on the basis of the induction strength signal, and to generate a corresponding clearance signal.
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公开(公告)号：US11506728B2
公开(公告)日：2022-11-22
申请号：US17107530
申请日：2020-11-30
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Michael Holliber
Abstract: Magnetic sensor arrangement comprising a component board delimited by two opposing main surfaces and having an accommodation hole for accommodating at least part of a magnetic field generating structure, and a magnetic sensor package located at least partially between the two opposing main surfaces and configured for sensing a magnetic field generated by the magnetic field generating structure.
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Patent Agency Ranking
公开(公告)号：US11506517B2
公开(公告)日：2022-11-22
申请号：US17395419
申请日：2021-08-05
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
Abstract: A magnetic angular position sensor system is described herein, which includes a shaft rotatable around a rotation axis, the shaft having a soft magnetic shaft end portion. The system further includes a sensor chip spaced apart from the shaft end portion in an axial direction and defining a sensor plane, which is substantially perpendicular to the rotation axis. At least four magnetic field sensor elements are integrated in the sensor chip, with two of the magnetic field sensor elements being spaced apart from each other and are sensitive to magnetic field components in a first direction and wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a second direction, whereby the first and the second direction are mutually non-parallel and the first and the second direction being perpendicular to the rotation axis.
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公开(公告)号：US11460289B2
公开(公告)日：2022-10-04
申请号：US15982573
申请日：2018-05-17
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
IPC: G01B7/30 , G01R33/022 , G01R33/028 , G01R33/09 , G01D5/14 , G01D3/036
Abstract: An example device includes a first gradiometer that includes a first set of sensing elements aligned along a first axis, a second gradiometer that includes a second set of sensing elements aligned along a second axis, and a controller. The first set of sensing elements and the second set of sensing elements may be configured to sense a set of magnetic field components that are perpendicular to the rotational axis, wherein the first axis is in a first plane and the second axis is in a second plane, and the first plane and the second plane may be perpendicular to a rotational axis of a rotatable object. The controller may obtain, via the first gradiometer and the second gradiometer, the set of components of the magnetic field. The controller may then determine, based on obtaining the set of components of the magnetic field, the angular position of the rotatable object.
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公开(公告)号：US11300399B2
公开(公告)日：2022-04-12
申请号：US16459898
申请日：2019-07-02
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
IPC: G01B7/30
Abstract: A device comprises a permanent magnet, a magnetic field sensor, and an evaluation circuit. The permanent magnet has a body extending along a path, wherein in a movement travel region the permanent magnet has a continuous north pole and a continuous south pole and is magnetized in such a way that the magnetization direction along the path rotates continuously around the path. The permanent magnet is arranged in an inner spatial region and the at least one sensor is arranged in an outer spatial region, wherein in cross section perpendicular to the path the inner spatial region and the outer spatial region are separated from one another by an outwardly convex line. The magnetic field sensor is configured to detect the magnetic field generated by the permanent magnet. The evaluation circuit is configured to determine the position of the permanent magnet using the detected magnetic field.
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公开(公告)号：US11187729B2
公开(公告)日：2021-11-30
申请号：US16742228
申请日：2020-01-14
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner
IPC: G01R15/20
Abstract: A current sensor chip includes a first magnetic field sensor element and a second magnetic field sensor element respectfully configured to generate a first analog sensor signal and a second analog sensor signal responsive to a magnetic field caused by a primary current passing through an external primary conductor; an analog-to-digital converter coupled to the second magnetic field sensor element and configured to generate a digital sensor signal based on the second analog sensor signal; a digital signal processor coupled to the analog-to-digital converter to receive the digital sensor signal and configured to determine, based on the digital sensor signal and calibration parameters stored in a memory, a corresponding current measurement signal, which represents the primary current; and an external output pin coupled to the first magnetic field sensor element to receive the first analog sensor signal or an analog signal derived therefrom by analog signal processing.
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公开(公告)号：US20210302512A1
公开(公告)日：2021-09-30
申请号：US17220419
申请日：2021-04-01
Applicant: Infineon Technologies AG
Inventor： 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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