Ethernet interface transformer achieved through PCB

Abstract

The invention provides an ethernet interface transformer achieved through a PCB. The ethernet interface transformer comprises a PCB body, wherein a coupling module, a filtering module and a protecting module are built on the PCB body; the coupling module, the filtering module and the protecting module are built by a PCB circuit structure; the coupling module is used for carrying out two-way coupling on a high-speed network signal and isolating a direct current signal; a capacitive coupling way is adopted by the coupling module; the coupling module is provided with multiple groups of capacitive coupling units; each capacitive coupling unit is provided with a group of capacitor bodies; and the capacitor bodies of the capacitive coupling units are in a PCB circuit structure, and particularly are capacitor bodies achieved by arranging copper or tin foil at the upper layer and the lower layer of a stack-up layer on the PCB. The coupling module, the filtering module and the protecting module of the ethernet interface transformer are built by the circuit structure on the PCB; and the ethernet interface transformer is simple in structure, few in production procedures, high in integration level and applicable to automatic production.

Description

technical field [0001] The invention relates to the field of communication equipment, in particular to a network port transformer which implements the three functions of coupling, filtering and protection of a network port transformer through a circuit structure on a PCB board, and a network port transformer in which electronic components are circuitized, which belongs to a new type of basic electronic technology. Background technique [0002] Today is an era of highly developed communications, and the society has entered the network age, in which the improvement of network technology and the upgrading of network equipment play a pivotal role. [0003] During network transmission, a network port transformer is connected between the external network cable and the router or other internal electronic equipment. This transformer mainly realizes isolation coupling, filtering, and protection functions. The existing network port transformers generally have a traditional magnetic cor...

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Problems solved by technology

[0012] The purpose of the present invention is to solve the problems that the existing network port transformer adopts the traditional magnetic core coil structure, a large number of manual winding coils are required in the production process, the labor cost is high, the product competitiveness is poor, and the quality is difficult to control. The realized network port transformer, the coupling module, filter module and protection module of the network port transformer are constructed by the circuit structure on the PCB board. mouth transformer

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