ESD电流的解析表达式与数值解  

Analytic Expression and numerical Solution of ESD Current

作　　者：朱长青[1] 刘尚合[1] 魏明[1] 

机构地区：[1]军械工程学院静电与电磁防护研究所,石家庄050003

出　　处：《高电压技术》2005年第7期22-24,共3页High Voltage Engineering

基　　金：国家自然科学基金资助项目(50077024);重点资助项目(No.50237040)

摘　　要：分析IEC6100042静电放电(ESD)电流波形典型拟合解析表达式表明,这种由有限点拟合曲线的纯数学方式存在拟合的多样性,无可依据的物理基础。因而根据ESD物理特性提出了一种通过数值计算等效电路模型获得ESD电流数值解的方法,由该方法算出的电流峰值、上升时间、i30ns、i60ns等关键参数与IEC610042电流波形参数的相对误差的最大值均<1.6‰,为ESD辐射电磁场研究提供了有效的手段。Only several key parameters of ESD current waveform are specified in IEC61000-4-2 standard. Therefore, many different analytic expressions are able to fit the ESD current waveform, but all of them are short of physics basis and there is no rule to estimate their errors. In the paper, the typical analytic expressions are analyzed, and a numerical method to express the ESD current is proposed in according with the solution of actual ESD equivalent circuit. The expression is fit for FDTD computation in the research of radiated field by ESD.

关 键 词：ESD 表达式 数值计算 等效电路 

分 类 号：O441[理学—电磁学]