Electromagnetic interference suppression method and device

A technology of electromagnetic interference and common mode suppression, applied in the direction of electrical components, impedance networks, multi-terminal pair networks, etc., can solve problems such as excessive electromagnetic interference, increased interference, and stronger driving ability, and achieve the effect of eliminating or suppressing electromagnetic interference

Inactive Publication Date: 2016-08-24
LE SHI ZHI XIN ELECTRONICS TECH TIANJIN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of realizing the present invention, the inventor found that the interference signal is generated by the IC terminal and cannot be eliminated through the coupling transformer, and the driving ability of the interference signal becomes stronger after passi

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  • Electromagnetic interference suppression method and device
  • Electromagnetic interference suppression method and device
  • Electromagnetic interference suppression method and device

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Example Embodiment

[0029] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] figure 1 A schematic flowchart of a method for suppressing electromagnetic interference in Embodiment 1 of the present invention; such as figure 1 As shown, it may at least include the following steps:

[0031] S101. Receive a signal from an IC terminal and perform common mode suppression processing on the received signal, ...

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Abstract

The invention provides an electromagnetic interference suppression method and device. The electromagnetic interference suppression method comprises the steps that signals from an IC terminal are received, and common mode suppression is carried out on the received signals to at least eliminate or weaken interference signals doped in the received signals; the signals after common mode suppression are coupled to at least acquire a signal with enhanced drive capability, and the signal is sent to a network port side. According to the invention, the signals from the IC terminal are received, and common mode suppression is carried out on the received signals to at least eliminate or weaken the interference signals in advance; the signals after common mode suppression are coupled to at least acquire the signal with enhanced drive capability, and the signal is sent to the network port side; the problem that amplified interference signal is difficultly or hardly eliminated in the prior art is solved; electromagnetic interference is eliminated or suppressed; and the problems of excessive electromagnetic interference and the like are effectively solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electrical data processing, and in particular, to a method and device for suppressing electromagnetic interference. Background technique [0002] The network transformer (in short, it can be called data mercury) is a device that is available on consumer-grade PCI network cards, and it can also be called a network isolation transformer. Compared with ordinary transformers, network transformers use different magnetic materials due to the different frequencies used. Ordinary transformers are mainly used for energy transmission, while network transformers are usually used for signal transmission. [0003] Specifically, the network transformer has two main functions. One is to transmit data. It uses coil coupling to filter the differential signal sent by the PHY (Physical Layer) to enhance the signal, and couples it to different levels of connections through conversion. The other end of...

Claims

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Application Information

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IPC IPC(8): H03H7/00
CPCH03H7/00
Inventor 侯晓明
Owner LE SHI ZHI XIN ELECTRONICS TECH TIANJIN
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