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    Powered Device
    2.
    发明申请
    Powered Device 审中-公开

    公开(公告)号：US20190372475A1

    公开(公告)日：2019-12-05

    申请号：US16425528

    申请日：2019-05-29

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jincan Cao ,  Xuefeng Tang

    IPC: H02M7/217 ,  H01R24/64 ,  H01R13/66 ,  H04L12/10

    Abstract: In a powered device (PD), four MOSFETs are used in a rectifier circuit. The four MOSFETs are disposed based on a premise that an electric potential of a contact pair 1-2 is lower than that of a contact pair 3-6 and an electric potential of a contact pair 7-8 is lower than that of a contact pair 4-5, so that a PoE current of each contact group passes through only two of the MOSFETs but does not pass through a diode.

    POE Power Supply Device, POE Power Supply System, and Interface Part
    4.
    发明申请
    POE Power Supply Device, POE Power Supply System, and Interface Part 有权

    公开(公告)号：US20220150080A1

    公开(公告)日：2022-05-12

    申请号：US17523250

    申请日：2021-11-10

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jincan Cao ,  Chao Ren ,  Jian Chen ,  Ke Liu

    IPC: H04L12/10 ,  G02B6/42

    Abstract: A Power over Ethernet (PoE) power supply device, a PoE power supply system, an interface part, and a method for detecting an optical module, and pertaining to the field of communications technologies, where the PoE power supply device includes a photoelectric composite interface part, and wherein the photoelectric composite interface part integrates an optical interface and an electrical interface, and is configured to be coupled to a photoelectric composite module. The photoelectric composite interface part can complete PoE power supply while transmitting a signal.

    Network device and power supply method
    5.
    发明授权
    Network device and power supply method 有权

    公开(公告)号：US11329837B2

    公开(公告)日：2022-05-10

    申请号：US16391021

    申请日：2019-04-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shiyong Fu ,  Yan Zhuang ,  Jincan Cao ,  Fuguang Huang ,  Xueqi Chen ,  Rui Hua

    IPC: G06F1/30 ,  H04L12/10 ,  G06F1/26 ,  H04L12/40

    Abstract: A network device includes a power system, a processor, a power sourcing equipment PSE chip coupled to a first forward power supply port, and a first powered device PD chip coupled to a first reverse power receiving port. A first powered device is connected to the first forward power supply port and the first reverse power receiving port. When detecting that a power failure occurs on the network device, the processor instructs the first PD chip to draw power from the first powered device; the first PD chip draws the power from the first powered device through the first reverse power receiving port, and supplies the obtained power to the power system. Therefore, when a power failure occurs, the network device can continue to obtain power and work properly when the power failure occurs.

    EMI control method and apparatus, and electronic device
    7.
    发明授权
    EMI control method and apparatus, and electronic device 有权
    EMI控制方法和装置以及电子装置

    公开(公告)号：US09369114B2

    公开(公告)日：2016-06-14

    申请号：US14562003

    申请日：2014-12-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jincan Cao

    IPC: H03K5/13 ,  H03K5/01

    CPC classification number: H03K5/01 ,  H03K5/1252 ,  H03K5/135

    Abstract: An electromagnetic interference (EMI) control method to adjust initial clock phases of radiation sources of an electronic device, so as to control EMI of the electronic device. The EMI control method includes determining positions of radiation sources; determining a preset angle of the radiation sources; calculating an initial phase difference by position between the radiation sources according to the positions of the radiation sources and the preset angle of the radiation sources; calculating, according to the initial phase difference by position, determined initial clock phases of the radiation sources when a far-field superimposed field strength is a limiting value; and configuring a phase-adjustable clock driver of the electronic device using the determined initial clock phases, so as to adjust initial clock phases of the radiation sources to the determined initial clock phases.

    Abstract translation: 一种用于调整电子设备的辐射源的初始时钟相位的电磁干扰（EMI）控制方法，以便控制电子设备的EMI。 EMI控制方法包括确定辐射源的位置; 确定辐射源的预设角度; 根据辐射源的位置和辐射源的预设角度，计算辐射源之间的位置的初始相位差; 根据初始相位差计算当远场叠加场强为极限值时辐射源的初始时钟相位; 以及使用所确定的初始时钟相配置所述电子设备的相位可调时钟驱动器，以便将所述辐射源的初始时钟相位调整到所确定的初始时钟相位。

    Power supply method, device, and power supply system
    9.
    发明授权
    Power supply method, device, and power supply system 有权

    公开(公告)号：US10951425B2

    公开(公告)日：2021-03-16

    申请号：US16371918

    申请日：2019-04-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Zhuang ,  Shiyong Fu ,  Jincan Cao ,  Fuguang Huang ,  Xueqi Chen ,  Rui Hua

    IPC: G06F1/26 ,  H04L12/10 ,  H04L12/40

    Abstract: A power over Ethernet method includes: performing, by power sourcing equipment, a plurality of detections by using an Ethernet port, connected to an intermediate device, of the power sourcing equipment, where a quantity of detections performed by the power sourcing equipment is equal to a quantity of power supply ports of the intermediate device; and if at least one detection result of the plurality of detections is effective, sending, by the power sourcing equipment, a power supply indication to the intermediate device, and supplying power to the connection port. In this way, the power sourcing equipment can supply power across the intermediate device to a powered device connected to the intermediate device, and a power loss caused by voltage conversion is avoided.

    Power Supply Management Method, Device, and System
    10.
    发明申请
    Power Supply Management Method, Device, and System 审中-公开

    公开(公告)号：US20200092118A1

    公开(公告)日：2020-03-19

    申请号：US16694184

    申请日：2019-11-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Zhuang ,  Shiyong Fu ,  Jincan Cao ,  Fuguang Huang ,  Xueqi Chen ,  Rui Hua

    IPC: H04L12/10 ,  G06F1/3203

    Abstract: A power supply management method performed by power sourcing equipment, includes receiving a power-on request from a level-1 powered device, where the power-on request includes a port identifier of a level-2 power supply port that is detected to be valid in the level-1 powered device, determining, based on the power-on request and an outputtable power of the power sourcing equipment, a level-2 power supply port that is allowed to be powered on in the level-1 powered device, and sending a power-on instruction to the level-1 powered device, where the power-on instruction includes a port identifier of the level-2 power supply port that is allowed to be powered on in the level-1 powered device. The power sourcing equipment uses the level-1 powered device and a level-2 powered device connected to the level-1 powered device as a whole, and centrally performs power supply control and power management.

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