可调速自控ESD模拟器空气放电稳定性分析及实验验证

Air Discharge Stability Analysis and Its Experimental Verification of Speed Variable and Automatically Controllable ESD Simulator

空气放电是最常见的静电放电(ESD)形式,但由于其重复性低,相关标准中没有给出其放电电流的标准波形,这直接影响了对空气放电抗扰度实验的研究。ESD模拟器放电电极的接近速度是影响空气放电的电流波形重复性的主要原因之一。利用研制的带垂直导轨可调速ESD模拟器空气式静电放电实验平台,能够对ESD模拟器放电电极驱近速度进行精确控制。利用该平台与人手持ESD模拟器分别对电流靶和受试设备(EUT)进行了空气放电实验研究,结果表明,研制的实验平台由于实现了放电电极接近速度的精确控制,能够使放电电流波形达到较好的一致性。该装置将为电子设备静电放电抗扰度实验中空气放电实验的重复性提供一种解决方案。

Air discharge is the most common form of electrostatic discharge(ESD).However,there is no standard waveform of the discharge current in related standards for its low reproducibility,thus the experimental research of the air discharge immunity is impaired.The approaching speed of the discharge electrode for the ESD simulator is one of the main reasons of causing the low reproducibility of the air discharge current waveform.Consequently,we developed an experimental platform for air discharge of speed-variable ESD simulator with vertically guiding rail.Through this experimental platform,the approaching speed of the discharge electrode in the ESD simulator could be precisely controlled.Meanwhile,the air discharge experimental research on the current target and the equipment under test(EUT)with the experimental platform and the hand-held ESD simulator are carried out separately.The results show that the developed experimental platform can be adopted to realize a good consistency for the discharge current waveforms by the precise control of the approaching speed of the discharge electrode.Therefore,the development of the experimental platform can provide a possible solution for improving the reproducibility of the air discharge in ESD immunity test for electronic equipment.