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POE power supply system and POE power supply method

A power supply system and resistance technology, applied in the field of POE power supply system, can solve the problem that POE power supply system cannot take into account the increase of maximum output power, etc., to achieve the effect of improving maximum output power, the purpose and advantages are concise and easy to understand, and avoid light-load shutdown

Pending Publication Date: 2021-10-29
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides a POE power supply system to at least solve the problem that the POE power supply system in the related art cannot simultaneously increase the maximum output power and prevent light-load shutdown

Method used

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  • POE power supply system and POE power supply method
  • POE power supply system and POE power supply method
  • POE power supply system and POE power supply method

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Embodiment Construction

[0023] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present application, and are not intended to limit the embodiments of the present application. Based on the embodiments provided in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the embodiments of the present application.

[0024] Apparently, the accompanying drawings in the following description are only some examples or embodiments of the embodiments of the present application, and those skilled in the art can also apply the present application according to these d...

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Abstract

The invention relates to a POE power supply system and a POE power supply method. The system comprises a PSE controller, an MCU controller and a power expansion module, wherein the MCU controller is used for detecting a load current of the PSE controller when external PD equipment is powered on; the power expansion module comprises a control unit and a first resistor, and the control unit is used for controlling a sampling resistor in the PSE controller to be connected with the first resistor in parallel according to a first control signal output by the MCU controller when the load current is greater than a first threshold value, and controlling the parallel connection between the sampling resistor and the first resistor in the PSE controller to be disconnected according to a second control signal output by the MCU controller when the load current is smaller than a second threshold value. Through application of the method and the device, the problem that the POE power supply system in the related technology cannot give consideration to both improvement of the maximum output power and prevention of light-load turn-off is solved, and the technical effects of improving the maximum output power of the POE power supply system and effectively preventing the light-load turn-off of the POE power supply system are achieved.

Description

technical field [0001] The embodiment of the present application relates to the technical field of power over Ethernet, and in particular to a POE power supply system and a POE power supply method. Background technique [0002] Power Over Ethernet (POE for short), also known as POE power supply, is a technology that can transmit power and data to devices through twisted-pair cables in Ethernet. A complete POE power supply system includes Power Sourcing Equipment (PSE for short) and Powered Device (PD for short). [0003] POE power supply can supply power to Internet phones, wireless base stations, cameras, hubs, computers and other equipment. Since electronic equipment that can be powered by Ethernet can be used without additional power sockets, it can save the time of configuring power lines at the same time. and cost, so that the cost of the entire equipment system is relatively reduced. Therefore, POE power supply technology is widely used in technical fields such as vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/10
CPCH04L12/10
Inventor 李华楠葛振杰朱晓菲
Owner ZHEJIANG DAHUA TECH CO LTD
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