抑制电磁干扰源的设计

Suppression of electromagnetic interference soure design

电子设备工作时,受到各种因素的电磁干扰,同时电子设备的小型化使干扰源与敏感单元距离越来越小,干扰传播路径缩短,干扰机会增大,干扰形式多样,而其中电磁干扰源种类多样是引起干扰影响的核心因素。为了提高电子设备、仪表的工作性能等指标,针对电源、暂态过程、电磁辐射几种常见干扰源从他的干扰因素和特点出发,采用滤波器、加静电屏蔽、吸收、电磁屏蔽等措施抑制干扰源的影响。在应用中可根据实际需要进行选择。

When electronics equipments worked,be subjected to electromagnetism of various factor interference.At the same time Electronics equipments of small scaled make source and sensitive unit distance turning to small and make interference ismore and more,the interference spreads path to shorten,the interference opportunity enlarges,and the interference form is diverse,among them,The electromagnetism interference source category is diverse is the core factor that arouses interference influence.For raising the index signs like work function,etc of electronics equipments,gauge,aim at the power,temporary the Tai process,electromagnetism radiation,a few familiar interference sources set out from his interference factor and the characteristics,adoption filter,add static electricity to shield,absorb,the electromagnetism shield etc.represses an interference source.Can carry on a choice according to the effective demand in the application.