知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

5630 records (took 0.022 seconds)

    Direct current power supply system for urban rail transit cascaded direct-hanging stations
    2.
    发明授权
    Direct current power supply system for urban rail transit cascaded direct-hanging stations 有权

    公开(公告)号：US12191772B2

    公开(公告)日：2025-01-07

    申请号：US18314809

    申请日：2023-05-09

    Applicant: Guangzhou Metro Design&Research Institute Co.,Ltd. ,  QINGDAO UNIVERSITY

    Inventor： Shan Lin ,  Tao Zhao ,  Xingzhong Nong ,  Dijun Wang ,  Chunfang Wang

    IPC: H02M3/335 ,  H02B1/20 ,  H02J1/00 ,  H02M7/219

    Abstract: The present invention discloses a direct current power supply system for urban rail transit cascaded direct-hanging stations, belonging to the field of power electronic technologies. The power supply system includes a 110 kV high-voltage power grid, a 35 kV medium-voltage power grid, a cascaded H-bridge medium-voltage direct-hanging converter, a 650V-800V common direct current bus, a standby power supply and direct current electric loads. The cascaded H-bridge medium-voltage direct-hanging converter is formed by 3n modules in cascade, and each module is formed by an H-bridge converter and an isolated DC/DC converter connected in series. The present invention can replace an alternating current load power supply system based on a power frequency transformer, improve the efficiency and power density of the load power supply system of a subway station, reduce the no-load loss and extra cost introduced by the power frequency transformer, and achieve the purposes of energy saving, emission reduction and cost saving.

    Power supply apparatus and a vehicle comprising the same
    3.
    发明授权
    Power supply apparatus and a vehicle comprising the same 有权

    公开(公告)号：US12176704B2

    公开(公告)日：2024-12-24

    申请号：US18209536

    申请日：2023-06-14

    Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

    Inventor： Sooncheol Hwang

    IPC: B60W10/04 ,  B60R16/033 ,  H02J1/00

    Abstract: A power supply apparatus includes: a first battery configured to supply power; a first converter configured to step down a voltage output from the first battery to a first voltage; a second converter configured to step down the voltage output from the first battery to a second voltage lower than the first voltage; a third converter configured to convert the first voltage into the second voltage; a fourth converter configured to convert the second voltage into the first voltage; a first controller configured to supply the first voltage output from the first converter to at least one of a first load or the third converter; and a second controller configured to supply the second voltage output from the second converter to at least one of a second load or the fourth converter.

    In-wall power adaper adapted to receive a control attachment and method of implementing a power adapter
    6.
    发明授权
    In-wall power adaper adapted to receive a control attachment and method of implementing a power adapter 有权

    公开(公告)号：US12066848B1

    公开(公告)日：2024-08-20

    申请号：US18109088

    申请日：2023-02-13

    Applicant: Smart Power Partners LLC

    Inventor： John J. King ,  Stephen DeLano

    IPC: H02J1/00 ,  G05F1/12 ,  H01R31/06 ,  H02J3/00

    CPC classification number: G05F1/12 ,  H01R31/065 ,  H02J3/00

    Abstract: An in-wall power adapter adapted to receive a control attachment is described. The in-wall power adapter may comprise a first plurality of contact elements adapted to receive wires of a junction box, the first plurality of contact elements comprising a first contact element adapted to receive a power signal, a second contact element adapted to receive a neutral signal, and a third contact element adapted to provide the power signal to a load; a recess adapted to receive a control attachment; and a switch comprising a switch element having a first terminal adapted to receive the power signal and a second terminal adapted to provide the power signal to a load, and an actuator element coupled to the switch element to control the switch element; wherein the in-wall power adapter is adapted to control an application of the power signal received at the first contact element to a load in response to an actuation of the switch actuator.

    Modular electrical energy storage with fault protection
    7.
    发明授权
    Modular electrical energy storage with fault protection 有权

    公开(公告)号：US12027848B2

    公开(公告)日：2024-07-02

    申请号：US18157148

    申请日：2023-01-20

    Applicant: SolarEdge Technologies Korea Limited Company

    Inventor： JinWoo Lee ,  Bryon Roos Gomberg

    IPC: H02J1/00 ,  H02J1/10 ,  H02J3/32

    CPC classification number: H02J1/002 ,  H02J1/102 ,  H02J3/32

    Abstract: An apparatus includes a power converter, one or more power source terminal configured to connect to a power source, and one or more load terminal. The apparatus further includes two or more energy storage terminals configured to connect to two or more electrical energy storage devices. Two or more protection circuits, included in the apparatus, one for each of the protection circuits, is electrically connected between the respective energy storage terminal and the power converter. The two or more protection circuits are configured to disconnect the respective terminal from the power converter following a failure of the respective one of the electrical energy storage devices.

    Safety low-voltage electric appliance supplied with power by energy storage system
    8.
    发明授权
    Safety low-voltage electric appliance supplied with power by energy storage system 有权

    公开(公告)号：US11955886B2

    公开(公告)日：2024-04-09

    申请号：US18304299

    申请日：2023-04-20

    Applicant: Shenzhen JinDian Electronic Technology Co., Ltd.

    Inventor： Shifu Tang

    IPC: H02M3/125 ,  H02J1/00

    CPC classification number: H02M3/125 ,  H02J1/00

    Abstract: A safety low-voltage electric appliance supplied with power by an energy storage system comprises: a multi-energy power supply monitoring and recognizing unit used for integrating power interfaces for multi-energy power supply, and monitoring and tracking a multi-energy state; an energy storage region dynamic energy level unit used for dividing a multi-energy storage region into energy storage regions in terms of an energy storage form and specification, and adjusting energy levels of the dynamic energy storage regions; a multi-energy power supply and storage conversion unit used for controlling electric energy transmission, converting electric energy of the multi-energy power supply into electric energy needed by DC-operated load terminals, and storing the energy storage region dynamic energy level unit; and a low-voltage direct supply safety protection and stabilization unit used for monitoring an electricity consumption state of the load terminals, and performing safety protection on the load terminals.

    Power supply device and control method
    9.
    发明授权
    Power supply device and control method 有权

    公开(公告)号：US11955802B2

    公开(公告)日：2024-04-09

    申请号：US17587649

    申请日：2022-01-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xueji Zhang ,  Liqun Xiong ,  Jinli Feng

    IPC: H02J5/00 ,  H02J1/00 ,  H02J3/00 ,  H02J9/06

    CPC classification number: H02J5/00 ,  H02J1/00 ,  H02J3/0012 ,  H02J9/061

    Abstract: This application provide a power supply device and a control method. In one example, a power supply device includes a first AC/DC unit and a second AC/DC unit. An input terminal of the first AC/DC unit and an input terminal of the second AC/DC unit are connected to an alternating current input bus. An output terminal of the first AC/DC unit is connected to a first direct current output bus. The first AC/DC unit is output stable. An output terminal of the second AC/DC unit is connected to a second direct current output bus. Power is output to a plurality of direct current output buses respectively through a plurality of AC/DC units to supply power to different loads.

Patent Agency Ranking