高压串级延迟击穿开关在快前沿脉冲触发源中的应用
Series-connected high voltage delayed breakdown device switches applied to pulse trigger generator for fast risetime
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摘要: 报导了一种高压串级延迟击穿（DBD）开关在快脉冲触发源中的应用，介绍了脉冲源的电路结构和工作原理，并将DBD开关成功应用于快前沿脉冲触发源，获得了明显的脉冲陡化效果。串级DBD开关的级数为15级，直流击穿电压45 kV，脉冲工作电压60 kV，脉冲前沿由95 ns减小到21.5 ns，脉冲宽度50 ns。Abstract: High power delayed breakdown device(DBD) switches containing fifteen seriesconnected semiconductor structures are introduced. The seriesconnected DBD switches have been applied to fast risetime trigger generator. The experimental results show that the input pulse is sharpened significantly by seriesconnected DBD switches.The seriesconnected DBD switches have a holdoff voltage 60 kV, and the risetime is reduced from 95 ns to 21.5 ns.The pulse width of output pulse is 50 ns．
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Key words:
- delayed breakdown dbd switch /
- trigger generator /
- pulse transformer /
- pulse sharpening
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