FILTER FOR A MOTOR DRIVE
    2.
    发明公开

    公开(公告)号:US20240275327A1

    公开(公告)日:2024-08-15

    申请号:US18441602

    申请日:2024-02-14

    CPC classification number: H02P29/50 H02P27/08 H03H1/0007

    Abstract: A filter (8) for a motor drive, including a plurality of phase lines (10a-c) configured to connect an output of a power source (4, 6) to an input of a motor (2). The power source (4, 6) is configured to supply at the output a voltage that switches between a high voltage state and a low voltage state. The filter (8) includes a plurality of capacitors (12a-c), wherein each capacitor (12a-c) is connected between one of the plurality of phase lines (10a-c) and a ground. The filter (8) further includes a plurality of primary inductors (14a-c), wherein each phase line (10a-c) comprises one of the plurality of primary inductors (14a-c). The filter (8) further includes a plurality of secondary inductors (16a-c) and a plurality of resistors (18a-c). Each of the secondary inductors (16a-c) is connected in series with one of the plurality of resistors (18a-c) and each of the plurality of primary inductors (14a-c) is connected in parallel to one of the plurality of secondary inductors (16a-c) and one of the plurality of resistors (18a-c).

    Bus bar
    4.
    发明授权
    Bus bar 有权

    公开(公告)号:US11910523B2

    公开(公告)日:2024-02-20

    申请号:US17236761

    申请日:2021-04-21

    CPC classification number: H05K1/0233 H02M1/44 H03H1/0007 H05K2201/10272

    Abstract: In an embodiment a bus bar includes a first interface and a second interface, a filter element electrically connected between the first and the second interface and a first rail between the first interface and the second interface, wherein the first rail includes a central section with a metal sheet and a dielectric material at least partially covering the central section.

    Noise filter and power supply device

    公开(公告)号:US11811383B2

    公开(公告)日:2023-11-07

    申请号:US17518639

    申请日:2021-11-04

    Abstract: A noise filter includes: a first bus bar that is electrical wiring of a flat plate, the first bus bar including a first extending wiring portion extending in a first direction, a second extending wiring portion extending in a second direction that is a direction opposite to the first direction, and a first coupling wiring portion connecting the first extending wiring portion and the second extending wiring portion; a first lead conductor having a first end connected with the first coupling wiring portion; a first capacitor having a first end connected with a second end of the first lead conductor and a second end connected with a ground; and a magnetic core having an opening in a central portion, the magnetic core disposed in such a manner that the first coupling wiring portion passes through the opening.

    COMMON-MODE SIGNAL ABSORBER
    8.
    发明申请

    公开(公告)号:US20190140333A1

    公开(公告)日:2019-05-09

    申请号:US16240905

    申请日:2019-01-07

    CPC classification number: H01P1/20 H01P1/162 H03H1/0007

    Abstract: The present invention provides a common-mode signal absorber, which comprises an impedance-matching network and a common-mode signal reflection circuit. A differential-mode signal is inputted into input ends of the impedance-matching network, and outputted from output ends of the common-mode signal reflection circuit. When a common-mode signal is inputted into the common-mode signal absorber, the common-mode signal reflection circuit is for reflecting the common-mode signal within a specific frequency band. Afterward, the reflection of the common-mode signal within the specific frequency band will be absorbed by an impedance element of the impedance-matching network. Thus, the common-mode signal within the specific frequency band may be absorbed by the impedance-matching network so as to avoid to interfere signals transmitted on a communication system.

    MOTOR DEVICE
    9.
    发明申请
    MOTOR DEVICE 审中-公开

    公开(公告)号:US20190123621A1

    公开(公告)日:2019-04-25

    申请号:US16158482

    申请日:2018-10-12

    Abstract: A motor device that can secure the detection precision of the rotational angle of a motor is provided. A motor device has a motor housing, a heat sink, a motor cover, a motor, and a substrate. An opening portion of the motor housing is covered by the motor cover which is made of a magnetic body such as iron in a roofed tubular shape. A choke coil is provided on a surface of the substrate on the side opposite to the motor. A magnetic sensor is provided on a surface of the substrate on the side of the motor. A housing portion is provided at a roof portion of the motor cover. The choke coil, which is mounted on the substrate, is surrounded by the housing portion.

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