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Power supply device and method

A technology for power supply equipment and power modules, applied in the field of circuits, can solve problems such as power off of power supply PDs, and achieve the effect of avoiding power off of the whole network

Inactive Publication Date: 2015-08-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a power supply device, which solves the problem that all PDs may be powered off due to a partial power failure

Method used

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  • Power supply device and method

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Below to figure 1 As an example, describe in detail the power supply equipment provided by the embodiment of the present invention, figure 1 The structure diagram of the power supply equipment provided by the embodiment of the present invention.

[0033] Such as figure 1 As shown, the power supply equipment includes a power supply processing circuit, and the power supply processing circuit includes a power supply module 110 , a...

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Abstract

Embodiments of the present invention relate to a piece of power sourcing equipment. The power sourcing equipment includes a power supply module (110), a logic device (120), a PSE chip module (130), a control signal superimposer (140), and a switch circuit (150); the power supply module (110) has multiple power supplies, and outputs a power supply alarm signal when at least one of the multiple power supplies is faulty; the logic device (120) acquires, according to the power supply alarm signal, a power supply table corresponding to a power supply fault condition of the power supply module (110), and a first signal about the power-on or power-off status is sent to the first input end of the control signal superimposer (140); the control signal superimposer (140) superimposes the first signal, with a second signal of a power-on or power-off status sent by the PSE chip module (130), and outputs a superimposing result to the switch circuit (150); and the switch circuit (150) controls power supply of the power supply module (110) to the PD.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a power supply device and method. Background technique [0002] With the development of Power over Ethernet (English: Power over Ethernet, abbreviation: PoE) technology, end users rely more and more on powered devices (English: powered device, abbreviation: PD). PoE technology includes the link of power management. Power management refers to managing the power-on (English: power on) and power-off (English: power off) of PD devices according to the priority level and power consumption of PDs in the face of power failures, so as to reduce the impact of failures. [0003] A type of power sourcing equipment (English: power sourcing equipment, abbreviation: PSE) implements power-on and power-off of PDs through software. This type of power supply device powers off the PD by writing the PSE chip register. Usually, the PSE chip only supports the internal integrated circuit (English: Inter-Integ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/10H04L49/111
CPCH04L49/30H04L49/405H04L41/06G06F1/3203G06F1/263H04L12/10H04L12/40045G06F1/266G06F1/30
Inventor 马朝阳
Owner HUAWEI TECH CO LTD
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