公开(公告)号：US11592318B2

公开(公告)日：2023-02-28

申请号：US17854990

申请日：2022-06-30

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Christian Schott ,  Samuel Huber

IPC: G01R33/36 ,  G01D5/14 ,  G01D5/244

Abstract: A system for measuring an angular position of a rotor with respect to a stator, wherein the rotor is rotatable around a rotation axis, and the system includes: a magnetic source mounted on the rotor, having at least four magnet poles and providing a periodically repetitive magnetic field pattern with respect to the rotation axis; a sensor mounted on the stator and comprising a plurality of sensor elements for measuring at least one magnetic field component of the magnetic field and for providing a measurement signal thereof; the sensor being located substantially centered around the rotation axis, in a plane substantially perpendicular to the rotation axis at a first distance from the magnetic source; the sensor elements being located substantially on a circle at a second distance from the rotation axis; a calculator that determines the angular position by calculating it from the measurement signals.

公开(公告)号：US11552677B2

公开(公告)日：2023-01-10

申请号：US17496486

申请日：2021-10-07

Applicant: Melexis Technologies NV

Inventor： Andreas Ott ,  Federico D'Aniello ,  Thomas Freitag ,  Andrea Baschirotto

IPC: H04B3/54

Abstract: A transmitter device is provided for transmission of data via DC power distribution lines includes a sequence generator arranged for receiving a raw data bit stream to be transmitted over a positive and a negative DC power distribution line and for deriving a switching sequence based on the raw data bit stream, and a circuit including one or more capacitors and a plurality of switches controllable with the switching sequence derived in the sequence generator.

公开(公告)号：US11424952B2

公开(公告)日：2022-08-23

申请号：US15061010

申请日：2016-03-04

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Peter Vandersteegen

IPC: G06F13/42 ,  H04L12/40 ,  H04L61/5038 ,  G06F13/40 ,  H04L101/627

Abstract: The present invention relates to a data bus node integrated circuit comprising at least one static address selection terminal and a detecting circuit for detecting a state of the address selection terminal. The IC also comprises a communication circuit for data communication over a data bus. This circuit is adapted for determining a node address identifier taking the detected state of the at least one static address selection terminal into account. The detecting circuit is adapted for detecting the state of the address selection terminal by determining whether the address selection terminal is in a floating state, a power supply voltage state or a ground voltage state.

公开(公告)号：US11165380B2

公开(公告)日：2021-11-02

申请号：US16867816

申请日：2020-05-06

Applicant: Melexis Technologies NV

Inventor： Marc Lambrechts

IPC: H02P21/09

Abstract: A lead angle estimator is provided for estimating a lead angle of a brushless DC motor. The lead angle is the angle between a phase-voltage-vector of a phase-voltage, and a phase-current-vector of a phase-current. The lead angle estimator comprises a sampling unit and a processing unit. The sampling unit is adapted for obtaining phase-samples, which are a measure of the phase-current. The processing unit is adapted for estimating the lead angle by calculating a difference of the phase-samples in a extremum period around a maximum or around at least the phase-voltage, and by normalizing the obtained difference.

公开(公告)号：US20210311140A1

公开(公告)日：2021-10-07

申请号：US17351748

申请日：2021-06-18

Applicant: MELEXIS TECHNOLOGIES NV ,  X-CELEPRINT LIMITED

Inventor： Christian SCHOTT ,  Matthew MEITL ,  Christopher BOWER

IPC: G01R33/09 ,  G01R33/00 ,  G01R33/07

Abstract: A multi-element sensor for measuring a magnetic field. The multi-element sensor comprises a magnetic sensing element, and an electronic circuit. The magnetic sensing element comprises a sensor substrate and a magnetic sensor. The magnetic sensing element is mounted on the electronic circuit and contact pads are provided on the magnetic sensor. The contact pads of the magnetic sensing element are electrically connected with the electronic circuit. The electronic circuit is produced in a first technology and/or first material and the magnetic sensing element is produced in a second technology and/or second material different from the first technology/material, and the contact pads are disposed next to an edge or at a corner of the sensor substrate.

公开(公告)号：US11049784B2

公开(公告)日：2021-06-29

申请号：US16438799

申请日：2019-06-12

Applicant: Melexis Technologies NV

Inventor： Appolonius Jacobus Van Der Wiel

IPC: H01L23/532 ,  H01L23/31 ,  H01L21/02 ,  H01L21/56 ,  H01L23/29 ,  H01L23/522 ,  H01L23/528 ,  H01L29/04 ,  H01L29/16 ,  H01L29/84 ,  H01L35/22 ,  H01L21/768

Abstract: A semiconductor device comprising a first and second doped semiconductor layer wherein the first layer is a monosilicon layer and the second layer is a polysilicon layer, an oxide layer covering the first and second layer, and an interconnect which electrically connects the first and second layer comprises a metal alloy which has a first part in contact with the first layer and a second part in contact with the second layer, wherein a part of the metal alloy between the first and the second part crosses over a sidewall of the second layer; at least one electronic component is formed in the first and/or second layer; the semiconductor device moreover comprises a stoichiometric passivation layer which covers the first and second layer and the oxide layer.

公开(公告)号：US10969651B2

公开(公告)日：2021-04-06

申请号：US15876544

申请日：2018-01-22

Applicant: Melexis Technologies NV

Inventor： Volodymyr Seliuchenko ,  Marcelo Mizuki

IPC: G01S7/00 ,  G02F2/00 ,  G01S7/497 ,  G01S7/4863 ,  G01S17/42 ,  G01S7/487 ,  G01S17/10

Abstract: A multi-channel light detection and ranging system includes a plurality of active channels, each comprising a photosensitive element arranged to be exposed to light and an analog front end circuit arranged for receiving a signal from the photosensitive element. A compensation channel comprises a compensation element and an analog front end circuit arranged for receiving signals from the compensation capacitor. A processing unit arranged for receiving signals from the active channels and the compensation channel, deriving at a compensation signal from the signal received from the compensation channel, and compensating for the crosstalk interference and/or the interference common to the analog front end circuits of the active channels, using the compensation signal.

公开(公告)号：US10955304B2

公开(公告)日：2021-03-23

申请号：US16440130

申请日：2019-06-13

Applicant: Melexis Technologies NV

Inventor： Maliheh Ramezani

IPC: G01L9/00 ,  H01L21/22 ,  H01L29/84 ,  B81B7/00

Abstract: A piezo-resistor-based sensor, and a method to fabricate such sensor, comprise a sensor having at least a sensing element provided on a flexible structure, such as a membrane or cantilever or the like. The sensing element includes at least one piezo-resistor comprising at least a first region of the flexible structure doped with dopant atoms of a first type. The flexible structure furthermore comprises a second doped region within it, at least partially overlapping the first doped region, forming a shield for shielding the sensing element from external electrical field interference, wherein dopant atoms of the second doped region are of a second type opposite to the dopant atoms of the first doped region, for generating a charge depletion layer within the flexible structure at the overlapping region between the first doped region and the second doped region.

公开(公告)号：US10948553B2

公开(公告)日：2021-03-16

申请号：US16153967

申请日：2018-10-08

Applicant: Melexis Technologies NV

Inventor： Samuel Huber Lindenberger ,  Javier Bilbao De Mendizabal

IPC: G01R33/07 ,  G01R33/00 ,  G01D5/14 ,  G01V3/10

Abstract: A magnetic sensor device comprises a substrate, first and second magnetic sensors, and one or more inductors are disposed over the substrate and are controlled by a magnetic sensor controller having a control circuit. The control circuit controls the first magnetic sensor to measure a first magnetic field and the second magnetic sensor to measure a second magnetic field under presence of a fifth magnetic field generated by the inductors. The control circuit controls the first magnetic sensor to measure a third magnetic field and the second magnetic sensor to measure a fourth magnetic field under presence of a sixth magnetic field generated by the inductors, the fifth magnetic field and the sixth magnetic field being different. The control circuit calculates a relative sensitivity matching value converting magnetic field values measured by the second magnetic sensor to a comparable magnetic field value measured by the first magnetic sensor.

公开(公告)号：US20210025994A1

公开(公告)日：2021-01-28

申请号：US16523434

申请日：2019-07-26

Applicant: Melexis Technologies NV

Inventor： Sharath Patil ,  Volodymyr SELIUCHENKO

IPC: G01S7/486

Abstract: A signal peak detection apparatus (122) comprises an analogue signal source input and a plurality of analogue temporary storage units (140) operably coupled to the analogue signal source input. Each analogue temporary storage unit is configured in successive time-window relation to a preceding analogue temporary storage unit of the plurality of analogue temporary storage units (140). A gradient direction measurement unit (146) is operably coupled to the plurality of analogue temporary storage units (140) and configured to cooperate with the plurality of analogue temporary storage units (140) to provide waveform portion-specific gradient data in an n-bit digital output format. The apparatus (122) also comprises a waveform analyser (152) comprising a bitstream state change detector (154) and an m-bit input operably coupled thereto, the m-bit input being operably coupled to the gradient direction measurement unit (146).