摘要
提出一种静电脉冲防护中TVS器件(瞬态电压抑制器)的等效电路模型参数估算方法。基于半导体器件物理机理,考虑器件内建电势、击穿电压、结电容、及半导体的体电阻和封装的杂散电容电感等参数,建立TVS器件等效电路模型。搭建基于50高速测量系统的静电波形测试平台,通过电路仿真计算和相关试验的比较证实TVS等效电路模型在静电脉冲防护中的有效性,仿真和试验结果表明,串联电阻和封装杂散电感对静电脉冲的首个尖脉冲幅值具有显著的抑制作用。最后,应用建立的等效电路模型,对特高压变电站保护与控制设备模拟量端口的TVS器件脉冲抑制性能进行预测。
A parameter estimation method of TVS （Transient Voltage Suppressor） diode＇ equivalent circuit model was proposed for electrostatic discharge （ESD） protection. Based on the physical mechanism of semiconductor device, the TVS model was built by considering the junction potential, breakdown voltage, junction capacitor of PN junction, body resistor, parasitic inductance and capacitance of packaging. The test platform of 50% high speed system was built for ESD waveform measurement. The TVS model is validated by comparing the results of circuit simulation and experimental measurement for ESD protection. Furthernore, simulation and measurement show that the serial resistor, packaging inductance are the main factors to decreasing the magnitude of first spike. At last, the suppression effectiveness of ESD pulse was predicted with the proposed TVS model at the analog port of protection and control equipment in UHV substation.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第16期204-211,29,共8页
Proceedings of the CSEE
基金
基金项目:国家重点基础研究发展计划项目(973项目)(2011CB209405)
中央高校基本科研业务费专项资金资助(12MS125)~~
关键词
静电放电
TVS模型
高速测量系统
保护和控制设备
交流端口
electrostatic discharge （ESD）
TVS model
high speed measurement system
protection and control equipment
AC port
