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    Power sourcing equipment and energy saving method for power over ethernet
    21.
    发明授权
    Power sourcing equipment and energy saving method for power over ethernet 有权

    公开(公告)号：US11368321B2

    公开(公告)日：2022-06-21

    申请号：US16802974

    申请日：2020-02-27

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hua Chen ,  Shiyong Fu ,  Yan Zhuang ,  Rui Hua ,  Qi Dong ,  Chao Gu

    IPC: G06F1/32 ,  H04L12/10 ,  G06F1/3209 ,  G06F1/3203

    Abstract: Power sourcing equipment (PSE) and an energy saving method for Power over Ethernet are provided. The PSE includes: a low-power detection component, configured to: detect a power supply port when being connected to the power supply port; and send a first instruction when the power supply port is connected to a valid powered device PD, to instruct a control switch to connect a PSE chip and the power supply port and disconnect the low-power detection component from the power supply port, and instruct a power switch to connect the PSE chip and a power supply; the control switch, configured to: according to the first instruction, connect the PSE chip and the power supply port, and disconnect the low-power detection component from the power supply port; and the power switch, configured to connect the PSE chip to the power supply port according to the first instruction.

    Network device and power supply method
    22.
    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.

    Port Adaptation Method and Device
    23.
    发明申请
    Port Adaptation Method and Device 有权

    公开(公告)号：US20210392066A1

    公开(公告)日：2021-12-16

    申请号：US17356276

    申请日：2021-06-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shiyong Fu ,  Yan Zhuang ,  Rui Hua

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

    Abstract: A port adaptation method applied to a network device including a port adaptation apparatus includes probing whether the first port and the second port are connected to power sourcing equipment, and maintaining or switching one of the first port and the second port that is connected to power sourcing equipment as, or to, a powered state, and a state of the other port as, or to, a powering state.

    Power Sourcing Equipment Chip, Power Sourcing Equipment, and Power Over Ethernet System and Method
    26.
    发明申请
    Power Sourcing Equipment Chip, Power Sourcing Equipment, and Power Over Ethernet System and Method 有权
    电源设备芯片，电源设备和以太网供电系统和方法

    公开(公告)号：US20150293572A1

    公开(公告)日：2015-10-15

    申请号：US14675072

    申请日：2015-03-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Zhuang ,  Chao Zhao ,  Shiyong Fu ,  Rui Hua

    IPC: G06F1/26 ,  G06F13/40

    CPC classification number: G06F1/266 ,  G06F13/4022 ,  H04L12/10 ,  H05B37/00 ,  Y02D50/30

    Abstract: A power sourcing equipment (PSE) chip controls a powering channel of the PSE chip according to a value stored in a first register; the PSE chip changes, in response to a second instruction, the value stored in the first register into a calculated value, where the second instruction includes a second slave address and a second data byte, the second slave address is a virtual address of a virtual powering group, and the calculated value is a result obtained by calculation according to the second data byte and a channel indication value that is of the virtual powering group and stored in the PSE chip. Information indicating whether a powering channel is added to a virtual powering group is stored in a PSE chip, so that powering channels added to a virtual powering group can be controlled at a time.

    Abstract translation: 电源设备（PSE）芯片根据存储在第一寄存器中的值来控制PSE芯片的供电通道; PSE芯片响应于第二指令将存储在第一寄存器中的值改变为计算值，其中第二指令包括第二从地址和第二数据字节，第二从地址是虚拟地址 计算值是通过根据第二数据字节的计算获得的结果和虚拟供电组的信道指示值，并存储在PSE芯片中。 指示是否将加电通道添加到虚拟供电组的信息存储在PSE芯片中，从而可以一次控制添加到虚拟供电组的通道。

    Port adaptation method and apparatus
    29.
    发明授权
    Port adaptation method and apparatus 有权

    公开(公告)号：US11005671B2

    公开(公告)日：2021-05-11

    申请号：US16114896

    申请日：2018-08-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shiyong Fu ,  Yan Zhuang ,  Rui Hua

    IPC: H04L12/10 ,  H04L12/40 ,  G06F1/26 ,  H02J13/00 ,  H04L12/26

    Abstract: A network device probes whether a first port of the network device is coupled to power sourcing equipment, and when probing that the first port is coupled to power sourcing equipment, maintain or change the first port to a powered state, and lock the first port as a power drawing port, or when probing that the first port is decoupled to power sourcing equipment, and the network device has a power supply for supplying power, change the first port to a powering state. In this way, the first port may adaptively serve as a power drawing port or a power sourcing port according to a coupled device such that manually distinguished a port during device interconnection is not necessary and a coupling error rate is reduced.

    Power supply method, device, and power supply system
    30.
    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.

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