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《Power Electronics》 2006-01
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Current Impulse Rectifying Technique for Transient Electromagnetic Transmitter

FU Zhi-Hong,ZHOU Luo-Wei,SU Xiang-Feng(Chongqing University,Chongqing 400044,China)  
The key technique of transient electromagnetic transmitter is to resolve the problem about the turn-off time and linearity of current impulse on high power projecting.In this paper,some general snubbers are discussed in aspect of linearity,turn-off time and voltage stress,and optimizing device parameters are deduced.A novel quasi-resonant snubber for steep current impulse is presented,and the relationships among turn-off time,linearity of fall edge and device parameters are analyzed and proved by Matlab,PSim and further experiments.Having much less turn-off time,eliminating the current over-shot and improving the turn-off consistency,the proposed snubber is suitable as the load energy snubber of TEM transmitter.
【Fund】: 国家自然科学基金(505770717);; 重庆大学骨干教师资助计划资助项目~~
【CateGory Index】: P631.33
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