Novel network filter circuit

A network filter and circuit technology, applied in impedance network, multi-terminal pair network, electrical components, etc., can solve the problems of large variation, unstable quality, difficult production process, etc., and achieve small variation and low processing cost. , good effect

A network filter and circuit technology, applied in impedance network, multi-terminal pair network, electrical components, etc., can solve the problems of large variation, unstable quality, difficult production process, etc., and achieve small variation and low processing cost. , good effect

CN104901645AInactive Publication Date: 2015-09-09MIANYANG HIGHLY TECH JINGWEIDA SCI
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  • Novel network filter circuit

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, a new type of network filter circuit includes a common-mode suppression unit 1, a high-frequency common-mode noise and differential-mode noise filtering unit 2, a signal coupling and electrical isolation unit 3, and a low-frequency common-mode noise filtering unit 4 , the output end of the common-mode suppression unit 1 is connected to the input end of the high-frequency common-mode noise and differential-mode noise filtering unit 2, and the high-frequency common-mode noise and differential-mode noise filtering unit 2 The output end is connected to the input end of the signal coupling and electrical isolation unit 3, the output end of the signal coupling and electrical isolation unit 3 is connected to the input end of the low-frequency common-mode noise filtering unit 4, and the high-frequency common-...

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Abstract

The invention discloses a novel network filter circuit, comprising a common mode rejection unit, a high frequency common mode noise and differential mode noise filtering unit, a signal coupling and electric isolation unit, and a low frequency common mode noise filtering unit. And output end of the common mode rejection unit is connected with an input end of the high frequency common mode noise and differential mode noise filtering unit. An output end of the high frequency common mode noise and differential mode noise filtering unit is connected with an input end of the signal coupling and electric isolation unit. An output end of the signal coupling and electric isolation unit is connected with an input end of the low frequency common mode noise filtering unit. The novel network filter circuit has the advantages of low manufacturing cost, little manufacture variation, stable quality and so on.

Description

technical field [0001] The invention belongs to the technical field of network filters, and in particular relates to a novel network filter circuit. Background technique [0002] The network filter is a magnetic component connected between the Ethernet transceiver chip and the interface of the terminal equipment. It mainly plays the roles of signal transmission, impedance matching, waveform repair, noise suppression and electrical isolation. The quality characteristics of the network filter directly affect the performance of the entire network transmission system. [0003] The traditional network filter circuit is mainly composed of a plurality of magnetic ring coils, and its production process is difficult, the processing cost is high, the manufacturing variation is large, and the quality is unstable. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a new type of network filter circuit which has the advantages o...

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Application Information

Patent Timeline
09 Sep 2015
Publication
CN104901645A
IPC
H03H7/00
Inventors
ζ±ͺζ΄ͺ伟