Establishment of Severity Evaluation Index of EM Fields Accompanied by Air Discharges of ESD generator

Research Project

Project/Area Number	24760306
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Communication/Network engineering
Research Institution	Suzuka National College of Technology
Principal Investigator	MORI Ikuko 鈴鹿工業高等専門学校, その他部局等, 准教授 (20455140)
Project Period (FY)	2012-04-01 – 2014-03-31
Project Status	Completed (Fiscal Year 2013)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2012: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords	静電気放電 / イミュニティ / 静電気試験機 / IEC-61000-4-2 / 厳しさ / 評価法
Research Abstract	ElectroStatic Discharges accompanied by broadband electromagnetic fields threaten electronic devices. Therefore, the International Electrotechnical Commission prescribes an ESD immunity test. Regarding the air discharge of ESD generator, however, the precise of the test method is not given and the establishment of the severity evaluation index of the test is anticipated. In this study, firstly, using voltage potential gradient obtained by the measured discharge current waveforms and an equivalent circuit model, it is found that the peak value of the power and discharge energy are proportional to the 1.7th and 2.1the power of charge voltage, respectively. Then, regarding the indirect discharge method, as a proceeding study shows existence of multiple discharges for the case of contact discharge on the Vertical Coupling Plane, it is found that for the case of one on the Horizontal Coupling Plane, the similar phenomena occur.