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公开(公告)号：US20240385058A1
公开(公告)日：2024-11-21
申请号：US18689759
申请日：2022-09-08
Applicant: MELEXIS TECHNOLOGIES SA
Inventor： Gael CLOSE , Nicolas DUPRE , Théo LE SIGNOR
Abstract: A magnetic sensor system includes: an integrated circuit having a semiconductor substrate, which has a plurality of magnetic sensors configured for measuring at least two first magnetic field components oriented in a first direction, and for measuring at least two second magnetic field components oriented in a second direction; a permanent magnet movable relative to the integrated circuit and configured for generating a magnetic field; a processing circuit configured for determining at least two physical quantities related to a position of the magnet, using a predefined algorithm based on the measured first and second magnetic field components or values derived therefrom, as inputs, and that uses a plurality of at least eight constants which are determined using machine learning. A force sensor system, a joystick or thumbstick system, and a method employ features of the magnetic sensor system.
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公开(公告)号：US20220381586A1
公开(公告)日：2022-12-01
申请号：US17749429
申请日：2022-05-20
Applicant: Melexis Technologies SA
Inventor： Gael CLOSE , Eric LAHAYE , Lionel TOMBEZ
Abstract: Method of determining a position of a sensor device relative to a magnetic source, includes: a) determining a first and a second magnetic field component at a first sensor location; b) determining a third and a fourth magnetic field component at a second sensor location; c) determining a first difference of the first and third component, and determining a second difference of the second and fourth component, and determining a first angle based on a ratio of the first and second difference; d) determining a first sum of the first and third component, and determining a second sum of the second and fourth component; e) determining a second angle based on a ratio of said first and second sum; f) comparing the first and second angle to detect error.
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公开(公告)号：US20240060838A1
公开(公告)日：2024-02-22
申请号：US18453481
申请日：2023-08-22
Applicant: Melexis Technologies SA
Inventor： Appo VAN DER WIEL , Lucian BARBUT , Bruno BRAJON , Gael CLOSE , Enrico GASPARIN
IPC: G01L3/10
CPC classification number: G01L3/102
Abstract: A magnetoelastic torque sensor system includes a shaft having at least one axial section magnetized in a circumferential direction; and a magnetic sensor device arranged in the vicinity of the shaft. The sensor device has a first semiconductor substrate having a processing circuit, a second semiconductor substrate having a first magnetic sensor, and a third semiconductor substrate having a second magnetic sensor. Each magnetic sensor is configured for measuring a magnetic field component. The first, second and third semiconductor substrates are incorporated in a single packaged device. The processing circuit is configured for determining a pairwise difference between the magnetic field components, and for outputting a signal or a value indicative of a torque exerted upon the shaft, based on said pairwise difference. A method of measuring a torque exerted upon a shaft is provided.
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公开(公告)号：US20230393002A1
公开(公告)日：2023-12-07
申请号：US18328093
申请日：2023-06-02
Applicant: Melexis Technologies SA
Inventor： Theo LE SIGNOR , Gael CLOSE , Nicolas DUPRE
CPC classification number: G01L5/0061 , G01L1/122 , G01L1/24 , B25J13/085 , B25J9/1612 , B25J15/08
Abstract: A soft sensor arrangement for measuring a force includes a sensor, a deformable element deformable by the force, and an element for reacting with the sensor for measuring the force by a deformation of the deformable element. The deformable element extends at least partially between the sensor and the element.
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公开(公告)号：US20230213359A1
公开(公告)日：2023-07-06
申请号：US18185521
申请日：2023-03-17
Applicant: Melexis Technologies SA
Inventor： Christian SCHOTT , Gael CLOSE , Bruno BRAJON
CPC classification number: G01D5/145 , G01R33/091
Abstract: A position sensor system is arranged for determining a position of a sensor device movable along a predefined path relative to a magnetic source. The system includes the magnetic source and the sensor device. The magnetic source has a first plurality of magnetic pole pairs arranged along a first track and a second plurality of magnetic pole pairs arranged along a second track, centrelines of the tracks are spaced apart by a predefined track distance. The sensor device is configured for measuring at least two orthogonal magnetic field components at a first sensor location, and at least two second orthogonal magnetic field components at a second sensor location. The first and second sensor location are spaced apart by a predefined sensor distance smaller than the predefined track distance, in a direction transverse to the tracks.
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Patent Agency Ranking
公开(公告)号：US20230213358A1
公开(公告)日：2023-07-06
申请号：US18090206
申请日：2022-12-28
Applicant: Melexis Technologies SA
Inventor： Lionel TOMBEZ , Yves BIDAUX , Gael CLOSE
Abstract: A position sensor device comprising two or more magnetic sensors capable of measuring one or two or three orthogonal magnetic field components at various sensor locations; and a processing circuit for determining a first, a second and a third difference of two respective components, and for determining a first ratio of the first and second difference, and determining and outputting a first angle based on this first ratio; and for determining a second ratio of the first and third difference, for optionally determining a second angle, optionally comparing the two angles or the two ratios; and for outputting at least one of: the second angle, the two ratios, a diagnostic signal based on a comparison of the angles or ratios.
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公开(公告)号：US20220365147A1
公开(公告)日：2022-11-17
申请号：US17876953
申请日：2022-07-29
Applicant: Melexis Technologies SA
Inventor： Gael CLOSE , Arnaud LAVILLE , Stefan RIGERT , Samuel HUBER LINDENBERGER
Abstract: The present invention relates to a field-sensor device comprising a reference field sensor providing a reference sensor signal in response to a field, a calibrated field sensor providing a calibrated sensor signal in response to the field, a reference circuit connected to the reference field sensor and adapted to receive a reference signal, and an adjustable circuit connected to the calibrated field sensor and adapted to receive a calibrated signal. When the adjustable circuit is adjusted with the calibrated signal, said calibrated signal being different from the reference signal, the calibrated field sensor provides a calibrated sensor signal substantially equal to the reference sensor signal. The field sensor device is arranged to be exposed, when in a calibration mode, to a uniform calibration field and, when in operational mode, to an operational field being a field gradient.
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公开(公告)号：US20210199730A1
公开(公告)日：2021-07-01
申请号：US17122163
申请日：2020-12-15
Applicant: Melexis Technologies SA
Inventor： Gael CLOSE , Samuel HUBER LINDENBERGER
IPC: G01R33/038 , G01R33/07 , G01D5/14
Abstract: A position sensor system includes a magnetic source for generating a magnetic field, and a position sensor device movable relative to the magnetic source, or vice versa. The position sensor device comprises at least three magnetic sensor elements for measuring at least three magnetic field values of the magnetic field, and a processing circuit configured for determining at least two magnetic field gradients or magnetic field differences based on the at least three magnetic field values, and for deriving from the at least two magnetic field gradients or differences a first value indicative of a position of the position sensor device, and for deriving from the at least two magnetic field gradients or differences a second value indicative of integrity of the position sensor system.
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公开(公告)号：US20240302187A1
公开(公告)日：2024-09-12
申请号：US18654250
申请日：2024-05-03
Applicant: Melexis Technologies SA
Inventor： Christian SCHOTT , Gael CLOSE , Bruno BRAJON
CPC classification number: G01D5/145 , G01D5/244 , G01R33/091
Abstract: A position sensor system is arranged for determining a position of a sensor device movable along a predefined path relative to a magnetic source. The system includes the magnetic source and the sensor device. The magnetic source has a first plurality of magnetic pole pairs arranged along a first track and a second plurality of magnetic pole pairs arranged along a second track, centrelines of the tracks are spaced apart by a predefined track distance. The sensor device is configured for measuring at least two orthogonal magnetic field components at a first sensor location, and at least two second orthogonal magnetic field components at a second sensor location. The first and second sensor location are spaced apart by a predefined sensor distance smaller than the predefined track distance, in a direction transverse to the tracks.
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10.发明公开公开(公告)号：US20240224815A1
公开(公告)日：2024-07-04
申请号：US18392467
申请日：2023-12-21
Applicant: Melexis Technologies SA
Inventor： Guido DUPONT , Daniel ROSENFELD , Lionel TOMBEZ , Appo VAN DER WIEL , Gael CLOSE
CPC classification number: H10N52/80 , G01R33/0011 , G01R33/07 , H10N50/80 , H10N52/01 , H10N52/101 , H10N59/00
Abstract: A semiconductor device includes a semiconductor substrate, having an excitation circuit for applying an excitation signal, and a soft-magnetic component for guiding magnetic flux lines. The soft-magnetic component is electrically connected to the excitation by at least two electrical contacts in the form of back contacts or side contacts. The substrate further includes at least one electromagnetic transducer operatively connected to the soft-magnetic component. The excitation circuit includes a modulator for providing a modulated signal to the soft-magnetic component to modulate its magnetic permeability. The substrate further has a demodulator configured to demodulate signals obtained from the at least one electromagnetic transducer.
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