Two-way power supply system for POE (power over Ethernet)

A technology of power supply system and Ethernet, applied in the field of power supply system, can solve the problem that POE power supply can only be transmitted in one direction

Active Publication Date: 2015-07-22
PTN ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned problem that POE power supply can only be transmitted in one direction, the present invention provides a method and device for bidirectional power supply based on PSE and PD modules in POE

Method used

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  • Two-way power supply system for POE (power over Ethernet)
  • Two-way power supply system for POE (power over Ethernet)
  • Two-way power supply system for POE (power over Ethernet)

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Embodiment Construction

[0016] Such as Figure 1-2 As shown, a bidirectional power supply system in Ethernet POE of the present invention is connected with a network transformer on the signal line pair of the Ethernet input terminal unit, and the power input terminal unit is connected on the primary side tap of the network transformer; through the network transformer The power and Ethernet signals are combined and output through the PSE output terminal unit, and the PD receiving end obtains the voltage from the middle tap of the network transformer. Each device in the design integrates PSE and PD modules. When any one is powered by a power adapter, the normally open and normally closed relay realizes that when one uses the PSE power supply module, the PD module is cut off, and the other uses the normally open and normally closed relay to turn off the PSE module, and the PD module is used to realize the intelligent PSE bidirectional Power supply control system.

[0017] For normally open and normall...

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PUM

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Abstract

The invention discloses a two-way power supply system for POE (power over Ethernet). An in POE system, a transmitter and a receiver both comprise main boards and internet port terminals convenient to interconnect. The two-way power supply system is characterized in that the transmitter comprises a PSE (power sourcing equipment) module and a PD (powered device) module; the receiver correspondingly comprises a PD module and a PSE module; the PSE modules and the PD modules are all connected through normally-opened and normally-closed relays; the transmitter or the receiver is provided with a power input module. The two-way power supply system has the advantages that in the POE system, during power supply via a power adapter, when one device uses the PSE module (the PD module is off) through the normally-opened and normally-closed relay, the other device uses the PD module (the PSE module is off) through the normally-opened and normally-closed relay, two-way power supply of PSE is intelligentized, and POE two-way transmission is finally achieved.

Description

technical field [0001] The present invention relates to a power supply system, more specifically, to a bidirectional power supply system in POE over Ethernet. Background technique [0002] In the POE system, the equipment that provides power is called PSE (Power Sourcing Equipment), and the equipment that uses power is called PD (Powered Device). The PSE is responsible for injecting power into the Ethernet line, and implementing power planning and management. The powered device PD must meet the requirements of IEEE802.3af for the performance (characteristics) of the PD in the detection process. [0003] Because in the signal transmission system, other signals are usually converted into network signals, and then converted into original signals after transmission through the network, there are paired devices in the application: the sending end device and the receiving end device. The current POE technology can only realize that if the sending end device is configured as PSE,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B7/02G05B19/042G05B2219/25242G05B2219/25314
Inventor 陈志方雷正江李创曾水生
Owner PTN ELECTRONICS LTD
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