利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

1943 条记录 (耗时 0.024 秒)

    Electrical power system
    2.
    发明授权
    Electrical power system 有权

    公开(公告)号：US11873109B2

    公开(公告)日：2024-01-16

    申请号：US18053015

    申请日：2022-11-07

    申请人： ROLLS-ROYCE plc

    发明人： David R. Trainer ,  Francisco Javier Chivite Zabalza ,  Mark Sweet ,  Luke George ,  Gian Incerpi

    IPC分类号： B64D27/24 ,  H02J1/10 ,  H02J7/34 ,  H02M3/28

    CPC分类号： B64D27/24 ,  H02J1/106 ,  H02J7/34 ,  H02M3/28 ,  B64D2221/00 ,  H02J2310/44

    摘要： The disclosure relates to an electrical power system for providing a stabilised DC voltage to a power bus. Example embodiments include an electrical power system comprising: a DC power bus having first and second DC power bus terminals; an electrical storage unit having first and second terminals, the second terminal connected to the second DC power bus terminal; a DC:DC converter having first and second DC:AC converters and a transformer connected between the first and second DC:AC converters, the first DC:AC converter connected between the first terminal of the electrical storage unit and the first DC power bus terminal; and a controller connected to control a switching operation of one or both of the first and second DC:AC converters.

    DC High-Voltage Source Device and Charged Particle Beam Device
    3.
    发明公开
    DC High-Voltage Source Device and Charged Particle Beam Device 审中-公开

    公开(公告)号：US20230353056A1

    公开(公告)日：2023-11-02

    申请号：US18016989

    申请日：2020-07-22

    申请人： Hitachi High-Tech Corporation

    发明人： Tomoyo SASAKI

    IPC分类号： H02M3/28 ,  H02M1/14 ,  H02M1/00 ,  H01J37/248

    CPC分类号： H02M3/28 ,  H01J37/248 ,  H02M1/0043 ,  H02M1/14

    摘要： This DC high-voltage source device comprises a first voltage source including: a first variable DC voltage source; a second variable DC voltage source; a first switching circuit that generates an AC voltage from the DC voltage of the first variable DC voltage source; a second switching circuit that generates an AC voltage from the DC voltage of the second variable DC voltage source; a first transformer that transforms the AC voltage generated by the first switching circuit; a second transformer that transforms the AC voltage generated by the second switching circuit; a DC high-voltage generation circuit that generates a DC high voltage on the basis of a transformed AC voltage supplied from the first transformer and a transformed AC voltage supplied from the second transformer; and a computer system. The computer system independently adjusts the DC voltage value of the first variable DC voltage source, the DC voltage value of the second variable DC voltage source, the switching timing of the first switching circuit, and the switching timing of the second switching circuit.

    POWER CONVERTER
    5.
    发明申请
    POWER CONVERTER 有权

    公开(公告)号：US20230022784A1

    公开(公告)日：2023-01-26

    申请号：US17957877

    申请日：2022-09-30

    申请人： DENSO CORPORATION

    发明人： Yoshiki SUZUKI ,  Keisuke SUZUKI ,  Takumi SHIMIZU ,  Shuji KURAUCHI

    IPC分类号： H02M3/28 ,  H02M3/335

    摘要： A power converter configured to be connected to three or more voltage parts, includes three or more power-conversion circuitries to be connected to respective ones of the three or more voltage parts, and a multi-port transformer connected to the three or more power-conversion circuitries at respectively different ports. The three or more voltage parts include a vehicle drive battery and a plurality of alternating-current (AC) voltage parts. Each of the plurality of AC voltage parts is configured to provide at least one of power input to a multi-port transformer side and power output from the multi-port transformer side.

    PARALLEL BRANCHED RESONANT CONVERTER
    8.
    发明申请
    PARALLEL BRANCHED RESONANT CONVERTER 有权

    公开(公告)号：US20220294353A1

    公开(公告)日：2022-09-15

    申请号：US17197850

    申请日：2021-03-10

    申请人： EXCELSYS TECHNOLOGIES LTD

    发明人： Richard Morrison

    IPC分类号： H02M3/335 ,  H02M3/28

    摘要： This disclosure describes systems, methods, and apparatus for driving a plurality of output circuits from a DC input signal using a resonant converter, the resonant converter comprising a switch network, a resonant tank, and a rectifier network, the resonant tank comprising: a resonant capacitor bridge coupled across the switch network; a plurality of branches, each branch comprising at least one series inductor coupled at a first end to the resonant capacitor bridge and at a second end to the rectifier network; and at least one parallel inductor; the rectifier network comprising one or more groups of transformers, each group coupled to one branch of the plurality of branches, and wherein the primary windings of the transformers of each group are coupled in parallel, and wherein the secondary windings are configured for coupling to an output load.