减小干扰源耦合影响的电路设计探讨  

Discussion on circuit design for reducing coupling degree of interference source

作　　者：严刚峰[1,2] 方红[1] 杨维[1] 郭兵[2] 

机构地区：[1]成都大学电子信息工程学院,四川成都610106 [2]四川大学计算机学院,四川成都610065

出　　处：《工矿自动化》2014年第5期22-26,共5页Journal Of Mine Automation

基　　金：国家自然科学基金项目(11205022);四川省教育厅科研项目(12ZB172)

摘　　要：简要叙述了在电子电路系统的设计过程中干扰信号耦合的主要途径,并简要分析了产生这些干扰的因素,重点从公共阻抗的产生及其耦合噪声的抑制、采用隔离措施阻隔干扰耦合、采用屏蔽与接地措施阻隔干扰耦合及运用低通滤波来降低噪声耦合等方面详细讨论了如何减小干扰源耦合对电路设计的影响。Some main ways of interference coupling in electronic circuit design process were described and their caused factors were analyzed briefly. How to reduce interference source coupling degree in the circuit design process were discussed from aspects of producing of common impedance and suppression of its coupling interference, using measures of isolation, shielding and grounding to barrier interference coupling, and using low pass filter to reduce noise coupling.

关 键 词：电路设计 抗干扰 屏蔽 接地 低通滤波 

分 类 号：TD679[矿业工程—矿山机电]