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    MODULAR POWER SUPPLY ARCHITECTURE OPTIMIZED FOR FLAT EFFICIENCY ACROSS LOADINGS
    11.
    发明公开
    MODULAR POWER SUPPLY ARCHITECTURE OPTIMIZED FOR FLAT EFFICIENCY ACROSS LOADINGS 审中-公开

    公开(公告)号：US20230344329A1

    公开(公告)日：2023-10-26

    申请号：US17724985

    申请日：2022-04-20

    Applicant: Cisco Technology, Inc.

    Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Joel Goergen ,  Doug Paul Arduini ,  Ruqi Li

    IPC: H02M1/00

    CPC classification number: H02M1/0048 ,  H02M1/0043

    Abstract: A control method improves the efficiency profile of a power supply across a wide range of output loading. The method includes obtaining a measure of output power for a power supply, which includes one or more output modules and an auxiliary power supply. The method determines whether a maximum power rating of the auxiliary power supply is sufficient to provide the measure of output power. Responsive to a determination that the maximum power rating of the auxiliary power supply is sufficient to provide the measure of output power, the controller of the power supply directs the auxiliary power supply to provide the output power.

    ELECTRICAL CONNECTOR WITH INTEGRATED ELECTRONIC CONTROLLED POWER SWITCH OR CIRCUIT BREAKER SAFETY DEVICE
    14.
    发明申请
    ELECTRICAL CONNECTOR WITH INTEGRATED ELECTRONIC CONTROLLED POWER SWITCH OR CIRCUIT BREAKER SAFETY DEVICE 有权

    公开(公告)号：US20220190528A1

    公开(公告)日：2022-06-16

    申请号：US17122165

    申请日：2020-12-15

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Douglas Paul Arduini ,  Sung Kee Baek ,  Joel Richard Goergen

    IPC: H01R13/66 ,  H01R13/713

    Abstract: In one embodiment, and apparatus includes an electrical socket for connection with an electrical plug, a sensor for identifying a secure connection between the electrical socket and the electrical plug, and an electronic controller electrically coupled to the electrical socket and comprising a power input for receiving power. The electronic controller is operable to transmit power to the electrical socket upon receiving a signal from the sensor identifying the secure connection between the electrical socket and the electrical plug and shut off or turn on power to the electrical socket upon receiving an external input to the electronic controller. A method is also disclosed herein. The apparatus and method provide an electronic controlled power switch or circuit breaker safety device.

    Active AC power loss detection
    16.
    发明授权
    Active AC power loss detection 有权

    公开(公告)号：US11249144B2

    公开(公告)日：2022-02-15

    申请号：US16901989

    申请日：2020-06-15

    Applicant: Cisco Technology, Inc.

    Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Robert Gregory Twiss

    IPC: G01R31/58 ,  G01R19/165 ,  G01R31/52 ,  G01R31/54 ,  G01R31/42 ,  H02J3/00 ,  H02J13/00

    Abstract: To reduce the rate at which a false alternating current (“AC”) loss alarming signal is generated, but at the same time detect an actual AC loss situation in a timely manner, the disclosed method describes an AC line power loss detection and active verification method. If the AC line input voltage dips momentarily lower than a standard sine wave amplitude, the AC line may not be considered lost as long as it still has energy to drive a load. The method inserts a momentary load across the AC line and compares the AC line voltage before and after the extra load is applied. If the AC power is present, this extra loading will increase the AC loading current momentarily, but will not affect the AC line voltage. However, if the AC power is lost, such loading will lower the AC line voltage, indicating a loss of power.

    Active AC power loss detection
    19.
    发明授权
    Active AC power loss detection 有权

    公开(公告)号：US10718822B2

    公开(公告)日：2020-07-21

    申请号：US16600361

    申请日：2019-10-11

    Applicant: Cisco Technology, Inc.

    Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Robert Gregory Twiss

    IPC: G01R31/42 ,  G01R19/165 ,  G01R31/50 ,  H02J3/00 ,  H02J13/00

    Abstract: To reduce the rate at which a false alternating current (“AC”) loss alarming signal is generated, but at the same time detect an actual AC loss situation in a timely manner, the disclosed method describes an AC line power loss detection and active verification method. If the AC line input voltage dips momentarily lower than a standard sine wave amplitude, the AC line may not be considered lost as long as it still has energy to drive a load. The method inserts a momentary load across the AC line and compares the AC line voltage before and after the extra load is applied. If the AC power is present, this extra loading will increase the AC loading current momentarily, but will not affect the AC line voltage. However, if the AC power is lost, such loading will lower the AC line voltage, indicating a loss of power.

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