Two-line cable power supply device, power receiving device, system and method

Abstract

The invention discloses a two-wire cable power supply device, which comprises a power supply device and a first data coupling end and a second data coupling end respectively connected thereto; the first data coupling end and the second data coupling end are connected in series An isolation network for direct communication, used to isolate the DC power supply signal loaded by the first data coupling terminal and the second data coupling terminal, so that the first data coupling terminal and the second data coupling terminal output the positive and negative signals of the DC power supply respectively . The invention also discloses a two-wire cable power supply method, a two-wire cable power receiving device, a two-wire cable power receiving method, and a system and method for realizing power supply through the two-wire cable. Through the device, system and method disclosed in the invention, the application range and occasions of the PoE technology are expanded.

Description

technical field [0001] The invention relates to the field of power supply conversion equipment used for power supplies, in particular to a two-wire cable power supply device, power receiving device and system, and a corresponding method. Background technique [0002] With the increasing popularity of network terminals, the defects of using traditional cables to supply power to network terminals are becoming more and more prominent. , referred to as AP) is the best installation location on the ceiling, but the wires are laid on the ceiling, on the one hand, the power line is required to be laid out separately, and on the other hand, it is required to comply with safety and other regulations. Specifications require a relatively high cost. In order to overcome the defect of separately laying cables, a Power over Ethernet (PoE for short) technology emerges as the times require. [0003] The existing PoE technology is defined by the IEEE802.3af-2003 standard officially released...

AI Technical Summary

Problems solved by technology

[0004] However, the current PoE technology supports the transmission of power supply device signals through 4 pairs of twisted-pair shielded network cables that comply with the ISO / IEC 11801-2000 standard, which means that users can only use network cables for power supply in actual use.

Obviously, if two-wire cables can be used, such as telephone wire cables or cables that meet the "YD / T 322-1996 Copper Core Polyolefin Insulated Plastic Sheathed Local Communication Cable" standard for terminal power supply, it can effectively expand The application occasions and scope of PoE technology, there is no similar solution in the prior art

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