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    FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM
    3.
    发明公开
    FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM 审中-公开

    公开(公告)号：EP4485488A2

    公开(公告)日：2025-01-01

    申请号：EP24206968.0

    申请日：2020-12-03

    Applicant: Koninklijke Philips N.V.

    Inventor： ETTES, Wilhelmus, Gerardus, Maria ,  LULOFS, Klaas, Jacob ,  LEBENS, Pascal, Leonard, Maria, Theodoor ,  RIETSTRA, Friso, Jens, Gjerryt

    IPC: H01F38/14

    Abstract: A power transmitter (101) comprises a driver (201) generating a drive signal for a transmitter coil to generate a power transfer signal during a power transfer time interval and an electromagnetic test signal during a foreign object detection time interval. A set of balanced detection coils (207, 209) comprise two detection coils arranged such that signals induced in the two detection coils by an electromagnetic field generated by the transmitter coil compensate each other. A foreign object detector (205) is coupled to the detection coils and performs foreign object detection during the foreign object detection time interval. The foreign object detector (205) is arranged to detect a foreign object in response to a property of a signal from the detection coils meeting a foreign object detection criterion. A transformer (1101) has a primary winding and a secondary winding coupled in series with the set of balanced detection coils. A compensation circuit (1103) is coupled to the primary winding and arranged to generate a compensation drive signal for the primary winding which offsets a combined voltage of the set of detection coils.

    IMPLANTABLE HEARING AID SYSTEM COMPRISING A WIRELESS TRANSCUTANEOUS LINK
    4.
    发明公开
    IMPLANTABLE HEARING AID SYSTEM COMPRISING A WIRELESS TRANSCUTANEOUS LINK 审中-公开

    公开(公告)号：EP4456098A3

    公开(公告)日：2025-01-01

    申请号：EP24193322.5

    申请日：2021-02-22

    Applicant: Oticon Medical A/S

    Inventor： JOHANSSON, Martin ,  RÅBERGH, Wilhelm ,  THORNING-SCHMIDT, Maja ,  GYLSTORFF, Martin ,  VUCUREVIC, Stefan

    IPC: A61N1/05 ,  A61N1/378 ,  H01F38/14

    Abstract: Disclosed herein are embodiments of an implantable hearing aid system comprising an external unit including an electronic unit operationally coupled to a first inductive coil arrangement configured to transmit power and/or data signals, and where the first inductive coil arrangement includes a loop structure with coils wound around and along at least a part of length of the loop structure, and the loop structure comprises an opening, and an implantable unit including a second inductive coil arrangement configured to form a transcutaneous link with the loop structure and to receive the power and/or data signals over the transcutaneous link, and where the second inductive coil arrangement is configured to be implanted fully or partially within a part of an ear of a user of the implantable hearing aid system, wherein the external unit includes a housing and an earhook, wherein the earhook is configured to be fixed on the ear by a clamping force between at least end-faces of the loop structure.

    A ROTOR, AN ELECTRIC MOTOR AND AN ELECTRIC VEHICLE
    9.
    发明公开
    A ROTOR, AN ELECTRIC MOTOR AND AN ELECTRIC VEHICLE 审中-公开

    公开(公告)号：EP4456387A1

    公开(公告)日：2024-10-30

    申请号：EP23169618.8

    申请日：2023-04-24

    Applicant: Polestar Performance AB

    Inventor： STENVALL, Lars ,  STRANDEMO, Per

    IPC: H02K11/042 ,  H01F38/18 ,  H02K7/00 ,  H02K9/19

    Abstract: The present disclosure relates to a rotor (1) for being accommodated by a stator of an electric motor comprising a hollow rotor shaft (2) and an annular rotor core (3) comprising a winding (4), the annular rotor core (3) accommodating the hollow rotor shaft (2). Further, the rotor (1) comprises a power transmitting arrangement (10) comprising a receiving device (11) configured to receive AC power and rectify said AC power to DC power. Further, the rotor (1) comprises coil busbars (20). Furthermore, the receiving device (11) is positioned at an interior of said hollow rotor shaft (2).

    POWER SUPPLY, MAGNETIC CORE TRANSFORMER, AND PCB
    10.
    发明公开
    POWER SUPPLY, MAGNETIC CORE TRANSFORMER, AND PCB 审中-公开

    公开(公告)号：EP4456096A1

    公开(公告)日：2024-10-30

    申请号：EP24170511.0

    申请日：2024-04-16

    Applicant: Young In Ace Co., Ltd.

    Inventor： OSIPOV, Vadim ,  KIM, Eun Do ,  KANG, Sung Won

    IPC: H01F27/28 ,  H01J49/02 ,  H01F38/08

    Abstract: Disclosed is a power supply including an RF power source, a magnetic core transformer including a first transformer and a second transformer, each of which boosts an output of the RF power source. Each of the first transformer and the second transformer includes an input coil, a magnetic core, and an output coil. The input coil includes an outer winding and inner winding. The outer winding and inner winding form a single turn winding, and the outer winding and the inner winding are connected in series to each other.

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