POE power supply protection system and POE power supply protection method

A technology for sudden change of power supply and current, applied in the computer field, can solve the problem of unreliable power supply of POE power supply, and achieve the effect of suppressing sudden change of voltage and current and ensuring the normal state

Inactive Publication Date: 2015-07-01
ZTE CORP
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problem of unreliable power supply caused by POE power supply being easily interfered by external signals in the

Method used

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

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[0071] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0072] In order to solve the problem of low reliability of POE power supply transmission in the prior art, the present invention provides a POE power supply protection system and method, which can improve the reliability of POE power supply while ensuring normal transmission of Ethernet services, specifically including: PSE The remote protection of the chip suppresses the mutation of the voltage and current of the remote power loop ...

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Abstract

A power over Ethernet (POE) power supply protection system and method. The system comprises at least one of the following modules: a power supply equipment (PSE) near-end protection module (10) arranged at the near end of a PSE chip and used for protecting various pins of the PSE chip in the process of a sudden change of the voltage and current of a power circuit at the near end of the PSE chip; a PSE far-end protection module (12) arranged between the near end of the PSE chip and a PSE network port and used for suppressing the interference from a network cable of the network port to reduce the sudden change of the circuit of the PSE chip to be within the tolerance of the near end of the PSE; a powered device (PD) far-end protection module (14) arranged between the near end of a PD chip and a PD network port and used for suppressing the interference from a network cable of the network port to reduce a circuit of the PD chip to be within the tolerance of the near end of a PD; and a PD near-end protection module (16) arranged at the near end of the PD chip and used for protecting various pins of the PD chip in the process of a sudden change of the voltage and current of a power circuit at the near end of the PD chip.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a POE power supply protection system and method. Background technique [0002] Power Over Ethernet (POE for short) is a standard specification that uses existing standard Ethernet transmission cables to transmit data while supplying power, and it maintains compatibility with existing Ethernet systems and users. Realize injecting power into the common-mode tap of the transformer at the sending end of the Ethernet signal, and extracting power energy from the common-mode tap at the receiving end of the Ethernet signal. It involves a series of detection and identification, and there are several voltage and current controls. The corresponding transmitting controller is called Power Supply Equipment (PSE for short), and the receiving controller is called Powered Device (PD for short). ). [0003] In 1999, IEEE began to develop POE technology, and started to formulate the fi...

Claims

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Application Information

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IPC IPC(8): H02H9/02H02H9/04
CPCH02H7/00H04L12/10H02H9/001
Inventor 张佳洁王昕唐余兵杜永红
Owner ZTE CORP
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