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Filter circuit and electrical connector with the same

A filter circuit and electrical connector technology, which is applied to circuits, connections, components of connection devices, etc., can solve problems such as data connection of network card chips, and achieve the effects of simple manufacturing process, reduced production costs, and wide application prospects

Active Publication Date: 2017-01-25
FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The filter circuit provided by the present invention and the electrical connector with the filter circuit do not need to use resistors and capacitors, thereby solving the technical problem that the network card chip cannot correctly communicate with the network cable due to the breakdown of the capacitor.

Method used

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  • Filter circuit and electrical connector with the same
  • Filter circuit and electrical connector with the same
  • Filter circuit and electrical connector with the same

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Embodiment Construction

[0049] see figure 1 As shown, the filter circuit 1 according to the first embodiment of the present invention is a network interface circuit, and the filter circuit 1 has a transmission cable side 100 and a circuit board side 200 for mutual input and output, and is connected between the two sides The four signal transmission channels 11. Each signal transmission channel 11 includes a transformer 20 connected to the transmission cable side 100 and a two-wire common mode choke coil 30 connected to the transformer 20 and the circuit board side 200 . The transformer 20 includes a first coil 21 and a second coil 22 , and the first coil 21 and the second coil 22 are coupled to each other. The first coil 21 is provided with two first connection ends 210 connected to the transmission cable side 100 and a center tap 211 located between the two first connection ends 210. The center tap 211 of the first coil 21 of each signal transmission channel 11 is first Short circuit and then conn...

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Abstract

Disclosed is a filter circuit. The filter circuit is provided with a transmission wire cable side, a circuit board side and four transmission channels, wherein the transmission wire cable side and the circuit board side are mutually used as input and output, and the four transmission channels are connected between the transmission wire cable side and the circuit board side. Each transmission channel comprises a transformer and a common mode choke, wherein the transformer is connected on the transmission wire cable side, and the common mode choke is connected with the transformer and the circuit board side. Each transformer comprises a first coil and a second coil, wherein the first coil is provided with two first connecting ends connected on the transmission wire cable side, the second coil is provided with two second connecting ends connected with two common mode chokes, the first coil is further provided with a center tap located between the two first connecting ends, and the center tap is connected to a gap discharging circuit and connected to the ground. The gap discharging circuits can prevent high-voltage surges generated by lightning strokes. Further disclosed is an electric connector with the filter circuit.

Description

[0001] 【Technical field】 [0002] The present invention relates to a filter circuit, in particular to a filter circuit with better anti-high voltage surge function, and also relates to an electrical connector with the filter circuit. [0003] 【Background technique】 [0004] For the prior art related to the present invention, please refer to the CN101673617A Chinese invention patent application published on March 17, 2010. Accompanying drawing 12 (d) of CN101673617A discloses a kind of known way of preventing high-voltage surge, and filter circuit comprises a plurality of transformers and the common mode choke coil that connects described transformer and circuit board side, and transformer comprises first coil and The second coil, the first coil is provided with two first connection ends connected to the side of the transmission cable, and the second coil is provided with two second connection ends connected with the common mode choke coil. The center tap of the first coil of e...

Claims

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Application Information

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IPC IPC(8): H03H11/02H01R13/7193
Inventor 师乐善陈欢
Owner FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD
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