Power supply circuit and power supply panel

A power supply circuit and panel technology, which is applied in the field of communication, can solve problems such as burning out of the first terminal device 100 and the second terminal device 200, and achieve the effects of ensuring safe and stable use, realizing automatic switching, and ensuring normal and safe use

Active Publication Date: 2014-01-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the additional reverse voltage introduced by the power supply module 300, there is a risk of burning out the first terminal device 100 and the second terminal device 200 connected to the twisted pair

Method used

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  • Power supply circuit and power supply panel
  • Power supply circuit and power supply panel
  • Power supply circuit and power supply panel

Examples

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] Please refer to figure 2 , is a schematic circuit diagram of the first embodiment of the power supply circuit of the present invention. In this embodiment, the power supply circuit is used to supply power from the internal line of the user's home to the distribution point outside the user's home, including: a power supply module 10, a switch module 20 , control module 30 , isolation module 40 and service return module 50 .

[0044] The power supply module ...

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Abstract

Embodiments of the invention provide a power supply circuit and a panel, comprising: a power supply module for supplying power for a distribution point; a switch module respectively connected with the power supply module, a terminal device and the distribution point, for communicating the distribution point with the terminal device when the distribution point does not need power supply, and for communicating the power supply module with the distribution points when the distribution point needs power supply; a control module connected with the power supply module, for controlling the switch module based on the electric signal outputted by the power supply module to carry out circuit switchover; an isolation module, which is respectively connected with the power supply module and the switch module, prevents the external service from being output to the power supply module, and prevents the voltage provided by the power supply module from being output to the terminal device; and a service passing-back module, which is respectively connected with the isolation module and the terminal device, wherein, when the distribution point needs power supply, the external service is output to the terminal device. Embodiments of the invention further provides a power supply panel, which can make sure normal and safe use of other terminal devices in the circuit based on whether self-adapting swiching the power supply circuit for power supply for the distribution point.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a power supply circuit and a power supply panel. Background technique [0002] In the Fiber To The Distribution Point (FTTdp) networking environment, because it is difficult to obtain local power from the Distribution Point (DP), how to supply power to the DP becomes a problem in the FTTdp networking environment. Technical difficulties that need to be resolved. [0003] In the prior art, power is supplied from a power supply equipment (Power Supply Equipment, PSE for short) inside the user's home to a DP outside the user's home, wherein a medium for transmitting power generally adopts a twisted pair. In this power supply circuit, the traditional twisted-pair connection in the user's home is usually connected in series. If a power supply module is connected to a certain point on the internal connection line of the user's home to provide reverse power to the DP, the output...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCH04L12/10H04L12/40045H04B10/807
Inventor 高兴国
Owner HUAWEI TECH CO LTD
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