公开(公告)号：US20190253268A1

公开(公告)日：2019-08-15

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

CPC classification number: H04L12/10 ,  G06F1/266 ,  G06F1/30 ,  H04L12/40045

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.

公开(公告)号：US20230269107A1

公开(公告)日：2023-08-24

申请号：US18180219

申请日：2023-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weiping SONG ,  Shiyong FU ,  Yajie CAI ,  Xuefeng TANG ,  Houcun ZHU

IPC: H04L12/10 ,  H04L12/40

CPC classification number: H04L12/10 ,  H04L12/40045 ,  H04L2012/2845

Abstract: This application relates to a power consumption grading method for a network-based power supply system. The method includes: when it is detected that power overload protection is not triggered, starting a plurality of power modules of a powered device one by one in a specific order until all the plurality of power modules are started or it is detected that the power overload protection is triggered after a specific power module is started; when it is detected that the power overload protection is triggered, selecting, according to the specific order and based on the specific power module, one or more of the plurality of power modules as a power module combination of the powered device; and determining a load power of the powered device and a corresponding power consumption level based on the power module combination.