摘要
红外触摸屏因其触摸精度高、响应速度快、稳定可靠等优势,在各行各业具有广泛的应用前景。然而由于红外触摸屏的结构、设计成本等因素的限制,其电磁兼容(EMC)问题异常突出。以红外触摸屏电缆EMC问题为研究对象,通过对其线缆及结构的研究,分析了电缆中产生辐射干扰的机理。结合接口电路的滤波设计,通过实验验证,设计了有效抑制电缆共模干扰的方法,保证了红外触摸屏的稳定、可靠运行。
Infrared touch screen has a wide application prospect in all walks of life because of its advantages of high touch precision,fast response,stability and reliability.Due to the limitation of the structure and design cost of infrared touch screen,its electro magnetic compatibility(EMC)problem is very prominent.The EMC problem of infrared touch screen cable is taken as the research object.Through the research of its cable and structure,the mechanism of radiation interference in the cable is analyzed.Combined with the filter design of interface circuit and verified by experiments,the method for effective suppression of cable common mode interference is designed to guarantee its stable and reliable operation.
作者
王晓辉
程海新
WANG Xiao-hui;CHENG Hai-xin(National Virtual Simulation Experimental Center for Smart City Educ ation,School of Eilectrical and Information Engineering,Beijing University of Ciwil Engineering and Architecture,Bejing 100044,China;不详)
出处
《电力电子技术》
CSCD
北大核心
2020年第5期36-39,共4页
Power Electronics
基金
北京建筑大学市属高校基本科研业务费专项资金(X19018)
北京建筑大学科学研究基金(00331616040)。
关键词
电缆
电磁兼容
红外触摸屏
辐射干扰
cable
electro magnetic compatibility
infrared touch screen
radiation interference
