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Power supply device PSE and common mode differential mode adaptive power supply method

A technology of power supply equipment and power supply control, applied in the direction of data switching current source, data exchange details, etc., can solve the problems of high cost and complicated operation

Active Publication Date: 2018-11-23
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a power supply equipment PSE and a common-mode differential-mode self-adaptive power supply method to solve the problem of complicated operation and high cost of the common-mode and differential-mode power supply scheme in the existing POE system

Method used

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  • Power supply device PSE and common mode differential mode adaptive power supply method
  • Power supply device PSE and common mode differential mode adaptive power supply method
  • Power supply device PSE and common mode differential mode adaptive power supply method

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Embodiment 1

[0057] An embodiment of the present invention provides a PSE. See Figure 4 , Figure 5 , Figure 4 Shown is a structural block diagram of the PSE in the embodiment of the present invention, Figure 5 Shown is a schematic diagram of the connection relationship between the PSE and the common-mode power receiving PD / common-mode power receiving PD in the embodiment of the present invention. The PSE includes an RJ45 interface, an interface module, a low-frequency isolation module, a high-frequency isolation module, a switching module, a POE module and a control module.

[0058] Among them, the RJ45 interface is a network interface, which is a standard interface for connecting network cables, and the PD is connected to the PSE through the RJ45 interface; the interface module is used to realize the sending and receiving of network physical layer data, and the interface module is, for example, a PHY (Physical Layer, physical layer) chip , the interface module supports both single...

Embodiment 2

[0105] Based on the same inventive concept, an embodiment of the present invention provides a method for adaptive power supply in common mode and differential mode, which can be applied to a PSE, such as the PSE described in Embodiment 1. The description of the PSE in the embodiment of the present invention , you can refer to and quote the description in Embodiment 1, and details will not be repeated here. Moreover, when understanding and explaining other contents in Embodiments 1 and 2, they can also refer to and quote each other.

[0106] See Figure 9 , the common-mode differential-mode adaptive power supply method provided by the embodiment of the present invention includes the following steps:

[0107] Step 901: The control module outputs a control signal at a first level to the switching module.

[0108]Wherein, the first level can be set as a high level or a low level. Specifically, there are two types of level output by the control module, one is high level and the ...

Embodiment 3

[0129] Based on the same inventive concept, an embodiment of the present invention provides a device, including:

[0130] at least one processor, and,

[0131] memory coupled to at least one processor;

[0132] Wherein, the memory stores instructions executable by at least one processor, and at least one processor executes the method described in Embodiment 2 by executing the instructions stored in the memory.

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Abstract

The embodiments of the present invention provide a power supply device PSE and a common mode differential mode adaptive power supply method, which are used for solving the problem that the scheme compatible with common mode and differential mode power supply in the existing POE system is complex in operations and high in cost. The PSE comprises a low frequency isolation module, a switching module,a high frequency isolation module, a POE module and a control module, wherein the low frequency isolation module is used for blocking low frequency signal transmission between an interface module andan RJ45 interface, the switching module, and the high frequency isolation module; the switching module is used for receiving a control signal output by the control module, and adjusting a pin in theRJ45 interface connected to the power supply according to the control signal so as to switch the PSE between a differential mode power supply mode and a common mode power supply mode; the high frequency isolation module is used for blocking high frequency signal transmission between the power supply and the interface module and the RJ45 interface; the POE module is used for performing power supplycontrol on a powered device PD in connection with the PSE; and the control module is used for generating a control signal, obtaining a power supply control result indicating whether the POE module completes power supply control, and controlling and adjusting the control signal according to the power supply control result.

Description

technical field [0001] The present invention relates to the technical field of power supply over Ethernet, in particular to a PSE (Power Sourcing Equipment, power supply equipment) and a common-mode differential-mode self-adaptive power supply method. Background technique [0002] POE (Power Over Ethernet, Power over Ethernet) is a technology that realizes power transmission based on network cables. The POE power supply system includes two parts: a power supply end device PSE and a power receiving end device PD (Powered Device, powered device). [0003] Traditional POE systems all adopt the power supply mode of common mode power supply. figure 1 Shown is a POE system using a common mode power supply mode, the power provided by the PSE in the POE system is provided by the two pin pairs of the RJ45 interface (for example, pins 3, 6 and pins 1, 2 defined in the RJ45 standard ) into PD with a high voltage applied to one pin pair and a low voltage applied to the other pin pair....

Claims

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Application Information

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IPC IPC(8): H04L12/10
CPCH04L12/10
Inventor 刘明邓志吉
Owner ZHEJIANG DAHUA TECH CO LTD
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