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    SENSOR DEVICE
    141.
    发明申请
    SENSOR DEVICE 审中-公开

    公开(公告)号：US20190107604A1

    公开(公告)日：2019-04-11

    申请号：US16149256

    申请日：2018-10-02

    Applicant: Melexis Technologies NV

    Inventor： Gaetan KOERS ,  Wouter LETEN ,  Sam MADDALENA ,  Ross KAY

    IPC: G01S7/481 ,  G01S17/02

    Abstract: A sensor device (100) comprises an emitter device (106) arranged to emit electromagnetic radiation and having an emission region associated therewith. The sensor device (100) also comprises a detector device (108) arranged to receive electromagnetic radiation and having a detection region associated therewith, and an optical system (122). The emission region is spaced at a predetermined distance from the detection region. The optical system (122) defines a plurality of principal rays, a number of the plurality of principal rays intersecting the detection region. The number of the plurality of principal rays also intersect the emission region.

    SAMPLE-AND-HOLD CIRCUIT FOR A LIDAR SYSTEM
    142.
    发明申请
    SAMPLE-AND-HOLD CIRCUIT FOR A LIDAR SYSTEM 审中-公开

    公开(公告)号：US20190043599A1

    公开(公告)日：2019-02-07

    申请号：US16048691

    申请日：2018-07-30

    Applicant: Melexis Technologies NV

    Inventor： Darrell LIVEZEY

    IPC: G11C27/02 ,  G01S7/486

    Abstract: The present invention relates to a sample-and-hold circuit comprising a plurality of sample-and-hold branches arranged in parallel and each comprising a buffer and a sample-and-hold block comprising one or more sample-and-hold cells characterised in that said sample-and-hold circuit further comprises a clock and timing circuit arranged for setting an adaptable time delay to enable sampling and sampling phase for each sample-and-hold block, wherein the time delay of at least one sample-and-hold block can be set to value bigger than one sampling clock period.

    OSCILLATOR BASED SENSOR INTERFACE CIRCUIT
    143.
    发明申请
    OSCILLATOR BASED SENSOR INTERFACE CIRCUIT 审中-公开

    公开(公告)号：US20180321065A1

    公开(公告)日：2018-11-08

    申请号：US15967809

    申请日：2018-05-01

    Applicant: Melexis Technologies NV

    Inventor： Johan VERGAUWEN

    IPC: G01D18/00 ,  H03L7/099 ,  H03L7/093

    CPC classification number: G01D18/00 ,  H03L7/0802 ,  H03L7/093 ,  H03L7/099 ,  H03M1/0604 ,  H03M1/1014 ,  H03M1/60

    Abstract: An oscillator-based sensor interface circuit comprises at least two oscillators, at least one of which is arranged for receiving an electrical signal representative of an electrical quantity being a converted physical quantity, phase detection means arranged to compare output signals of the at least two oscillators and for outputting a digital phase detection output signal in accordance with the outcome of the comparing, a feedback element arranged for converting a representation of the digital phase detection output signal into a feedback signal used directly or indirectly to maintain a given relation between oscillator frequencies of the at least two oscillators, detection means for detecting a difference between the at least two oscillators; and at least one tuning element arranged for receiving the detected difference and for tuning at least one characteristic of the oscillator-based sensor interface circuit.

    INFRARED SENSING DEVICES AND METHODS
    144.
    发明申请
    INFRARED SENSING DEVICES AND METHODS 审中-公开

    公开(公告)号：US20180283956A1

    公开(公告)日：2018-10-04

    申请号：US15997836

    申请日：2018-06-05

    Applicant: Melexis Technologies NV

    Inventor： Carl VAN BUGGENHOUT ,  Ben MAES ,  Karel VANROYE ,  Stijn REEKMANS

    IPC: G01J5/06 ,  G01J5/10

    CPC classification number: G01J5/06 ,  G01J5/045 ,  G01J5/10 ,  G01J2005/0048 ,  G01J2005/065 ,  G01J2005/067 ,  G01J2005/106

    Abstract: An infrared sensor assembly for sensing infrared radiation comprises infrared sensing elements and the infrared sensing compensation elements that are different so that, for a same flux on the infrared sensing elements and the infrared sensing compensation elements, the radiation responsive element of the infrared sensing elements absorbs more radiation than the radiation responsive element of the infrared sensing compensation elements, as to receive substantially more radiation than the radiation responsive element of the infrared sensing compensation elements. An output of the sensor array is a subtractive function of a sum of the signals of the plurality of infrared sensing elements and a sum of the signals of the plurality of the infrared sensing compensation elements such that at least linear and/or non-linear parasitic thermal fluxes are at least partly compensated for.

    SENSOR SHIELDING FOR HARSH MEDIA APPLICATIONS
    145.
    发明申请
    SENSOR SHIELDING FOR HARSH MEDIA APPLICATIONS 审中-公开

    公开(公告)号：US20180218984A1

    公开(公告)日：2018-08-02

    申请号：US15882073

    申请日：2018-01-29

    Applicant: MELEXIS TECHNOLOGIES NV

    Inventor： Appolonius Jacobus VAN DER WIEL

    IPC: H01L23/552 ,  H01L29/84 ,  H01L29/45 ,  H01L29/06 ,  H01L23/522 ,  H01L23/532 ,  H01L23/00 ,  H01L21/768

    Abstract: A sensor device for use in harsh media, comprising a silicon die comprises a lowly doped region, and a contact layer, contacting the silicon die. The contact layer comprises a refractory metal and an ohmic contact to the silicon die via a silicide of the refractory metal. A noble metal layer is provided over the contact layer such that the contact layer is completely covered by the noble metal layer. The noble metal layer comprises palladium, platinum or a metal alloy of palladium and/or platinum. The noble metal layer is patterned to form an interconnect structure and a contact connecting via the contact layer to the ohmic contact. The noble metal layer is adapted for providing a shield to prevent modulation of the lowly doped region by surface charges. The noble metal layer may advantageously protect the contact layer against harsh media in an external environment of the sensor device.

    DIE EDGE INTEGRITY MONITORING SYSTEM
    147.
    发明申请
    DIE EDGE INTEGRITY MONITORING SYSTEM 审中-公开

    公开(公告)号：US20180145002A1

    公开(公告)日：2018-05-24

    申请号：US15819260

    申请日：2017-11-21

    Applicant: Melexis Technologies NV

    Inventor： Gunnar MUNDER ,  Heiko GRIMM ,  Thomas FREITAG

    IPC: H01L21/66 ,  H01L23/00 ,  G01R31/28

    CPC classification number: H01L22/34 ,  G01R31/2858 ,  G01R31/2896 ,  H01L23/562 ,  H01L23/645 ,  H01L23/66 ,  H01L2223/6677

    Abstract: An edge crack monitoring system for an integrated circuit provided on a die, comprises a conductive trace comprising at least a first conductive path for allowing current in a first direction, and a second adjacent conductive path for allowing current in a second direction opposite to the first direction. Both adjacent conductive paths form at least one loop surrounding a semiconductor device on a die. The arrangement of the trace is adapted to provide compensation of EM interferences. The trace comprises two terminals being connectable to a detection circuit for detecting damages by generating a fault signal upon detection of disruption of the conductive trace due to a damage. The conductive trace comprises high resistance portions with a resistance of at least 1 kΩ, adapted for reducing self-resonance.

    Method of starting a three-phase BLDC motor and motor driver using same
    149.
    发明授权
    Method of starting a three-phase BLDC motor and motor driver using same 有权

    公开(公告)号：US09906175B2

    公开(公告)日：2018-02-27

    申请号：US15276887

    申请日：2016-09-27

    Applicant: Melexis Technologies NV

    Inventor： Michaël Bernardus Petrus Esvelt ,  Robert Filusch

    IPC: H02P1/54 ,  H02P6/20 ,  H02P27/08

    CPC classification number: H02P6/20 ,  H02P6/182 ,  H02P6/22 ,  H02P27/08

    Abstract: Method of starting a three-phase sinusoidal BLDC motor, comprising: a) determining an initial position of the rotor; b) applying a first set of sinusoidal energizing signals to the windings, corresponding to a set of sinusoidal waveforms shifted apart by 120° and 240° sampled at a first angle (Φ1); and maintaining the energizing signals for allowing the rotor to move to a first angular position; c) while maintaining the energizing signals, monitoring two of the phase currents, and determining whether a predefined condition is satisfied, comprising testing whether a ratio of two total current values is equal to a predefined value, and if true, to repeat steps b) and c), but with second and further sinusoidal energizing signals sampled at a second or further angular position, selected from a limited group of discrete angular positions.

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