Simulations of the Transient Electromagnetic Field in Exploding Foil Initiator
A special high pulsed current is required in the Exploding Foil Initiator (EFI).The pulsed current would reach several thousand amperes,and this process will arouse strong electromagnetic interference (EMI) to the control units near around.Ever since EFIs appearance,it has been designed with the targets of lower volume,higher integration,energy and cost effectiveness.Thus,this strong EMI is a bottleneck of the miniaturization development of EFI.In this paper,the characteristic curve of the pulsed current was calculated out,and then loaded on the equivalent wire of the circuit.The transient electromagnetic field around the conducting wire has been simulated out for the first time.The variation of induced electric field (EF) in different directions was plotted.All the 3D models and simulations are carried out using the Finite Element Method (FEM) software-ANSYS.Besides,the simulation result has been verified through a designed test.The final conclusions obtained in this work are highly meaningful for the EMI protection of EFI.Based on the data of radiated EMF,further protection method of different electronic components can be analyzed according to their thresholds.
EFI EMF ANSYS simulation
Zhang Baoyue Zheng Song Kang Xingguo
Xian Institute of Electromechanical Information Technology;Science and Technology on Electromechnic Xian Institute of Electromechanical Information Technology Xian, China
国际会议
重庆
英文
126-130
2015-12-19（万方平台首次上网日期，不代表论文的发表时间）