一种新型大电流脉冲调制器件——伪火花开关  

A New Pulse Modulator Device for Large Current——Pseudospark Switch

作　　者：栾小燕[1] 张明[1] 周亮[1] 

机构地区：[1]北京真空电子技术研究所,北京100015

出　　处：《真空电子技术》2012年第5期38-41,58,共5页Vacuum Electronics

摘　　要：介绍了一种新型大电流脉冲调制器件——伪火花开关,它利用介电材料沿面放电进行触发,单间隙导通脉冲大电流。目前这种开关已完成产品化,可以用来调制不低于30kV、50kA的脉冲,电流上升速率高达5×1010 A/s,在负触发电压脉冲作用下,开关的时间跳动小于7ns,寿命高达5×104 C,可直接用于替换氢闸流管以及高气压火花隙。The paper introduces a new pulse modulator device-Pseudospark Switch,which has a trigger unit based on a surface flashover,and is intended for using in conduction of large current pulse.At present,the switch has been developed to modulate a pulse more than 30 kV,50 kA,charactering with the time jitter less than 7 ns,the current rising rate of anode higher than 5×1010 A/s,operating life longer than 5×104C,and it can take the place of hydrogen thyratron and spark gap directly.

关 键 词：伪火花开关 脉冲功率调制 空心阴极效应 沿面放电触发 

分 类 号：TN134[电子电信—物理电子学]