公开(公告)号：US12032424B2

公开(公告)日：2024-07-09

申请号：US17850019

申请日：2022-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Fu ,  Houcun Zhu ,  Donghui Wang ,  Xiangen Xu ,  Zhaojin Li

IPC: G06F1/3209 ,  H02J1/02

CPC classification number: G06F1/3209 ,  H02J1/02

Abstract: A filtering-based power supply apparatus used in a power sourcing equipment (PSE) includes a power supply control circuit and an adaptive filter circuit. The power supply control circuit includes a power supply channel and a detection module. The power supply channel includes a control switch configured to control on and off of the power supply channel. The detection module is configured to send a detection signal to the power supply channel to detect whether a peer device connected to the power supply channel is a valid powered device. The control switch is turned off in a detection process of the power supply channel. The adaptive filter circuit is configured to filter noise in the detection signal in the detection process of the power supply channel.

公开(公告)号：US20220329449A1

公开(公告)日：2022-10-13

申请号：US17850019

申请日：2022-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Fu ,  Houcun Zhu ,  Donghui Wang ,  Xiangen Xu ,  Zhaojin Li

IPC: H04L12/10 ,  G01R27/20 ,  G06F1/3209 ,  H02J1/02

Abstract: A filtering-based power supply apparatus used in a power sourcing equipment (PSE) includes a power supply control circuit and an adaptive filter circuit. The power supply control circuit includes a power supply channel and a detection module. The power supply channel includes a control switch configured to control on and off of the power supply channel. The detection module is configured to send a detection signal to the power supply channel to detect whether a peer device connected to the power supply channel is a valid powered device. The control switch is turned off in a detection process of the power supply channel. The adaptive filter circuit is configured to filter noise in the detection signal in the detection process of the power supply channel.