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    POWER FACTOR CORRECTION CIRCUIT, POWER FACTOR CORRECTION ASSEMBLY AND ON-LINE UNINTERRUPTIBLE POWER SUPPLY COMPRISING SAME
    3.
    发明申请
    POWER FACTOR CORRECTION CIRCUIT, POWER FACTOR CORRECTION ASSEMBLY AND ON-LINE UNINTERRUPTIBLE POWER SUPPLY COMPRISING SAME 有权

    公开(公告)号：US20220021298A1

    公开(公告)日：2022-01-20

    申请号：US17299730

    申请日：2019-12-03

    Applicant: Eaton Intelligent Power Limited

    Inventor： Cheng Luo ,  Huiting Xin ,  Han Li ,  Dawei Zheng ,  Hualiang Li

    IPC: H02M1/42 ,  H02J9/06 ,  H02M1/00 ,  H02M3/335 ,  H02M7/493

    Abstract: The present invention provides a power factor correction circuit (21, 22), a power factor correction assembly (2) and an on-line uninterruptible power supply including the same. The power factor correction circuit (21) comprises a pulse width modulated rectifier (211, 221) and an isolated DC-DC converter (212, 222), wherein an output of the pulse width modulated rectifier (211, 221) is connected to an input of the isolated DC-DC converter (212, 222). The power factor correction assembly (2) comprises a plurality of power factor correction circuits (21, 22) described above, wherein inputs of pulse width modulated rectifiers (211, 221) in the plurality of power factor correction circuits (21, 22) are connected in series, and outputs of isolated DC-DC converters (212, 222) in the plurality of power factor correction circuits (21, 22) are connected in parallel. The power factor correction assembly (2) of the present invention needs no line-frequency transformer and has the advantages of small size, low cost and improved operation reliability.

    POWER CONVERTERS AND UNINTERRUPTIBLE POWER SUPPY (UPS) INCLUDING THE SAME
    4.
    发明申请
    POWER CONVERTERS AND UNINTERRUPTIBLE POWER SUPPY (UPS) INCLUDING THE SAME 有权

    公开(公告)号：US20250167584A1

    公开(公告)日：2025-05-22

    申请号：US18937437

    申请日：2024-11-05

    Applicant: Eaton Intelligent Power Limited

    Inventor： Dan Liu ,  Lei Cao ,  Dawei Zheng ,  Huahong Ning ,  Yulong Hao

    IPC: H02J9/06 ,  H02J7/00

    Abstract: A power converter and a UPS including the same are provided. The power converter includes: a first power conversion module including a first and a second bridge arms, and a second power conversion module including a third and a fourth bridge arms, where first terminals of the first and second power conversion modules are configured to be capable of being electrically connected to a mains supply and/or a rechargeable battery, and second terminals are configured to be capable of being electrically connected to a DC bus; and a switch module, configured to enable the first terminals of the first and second power conversion modules to be selectively electrically connected to the mains supply and/or the rechargeable battery, where the first and second power conversion modules, and the switch module are configured to charge the rechargeable battery from the DC bus through the first and fourth bridge arms.

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