快脉冲直线变压器驱动源模块的原理及实验
Design and experiment of linear transformer driver stage
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摘要: 介绍了直线型变压器驱动源（LTD）产生快脉冲的基本原理及技术优势，阐述了快脉冲LTD模块设计的要点，设计了输出脉冲上升时间小于100 ns的快脉冲LTD模块，并进行了初步的实验研究。实验得到该LTD模块充电±16 kV时，短路放电的电流峰值为23.7 kA，电流振荡1/4周期为69.6 ns；充电±50 kV驱动0.85 Ω负载时，电流峰值为41.4 kA，上升时间为36.8 ns（10%~90%）和60.8 ns（0~100%）。Abstract: The principle and technical advantages of a linear transformer driver are introduced and the critical points in designing the fast LTD stage are presented. A fast LTD stage with current rising time less than 100 ns was designed and primary experiments were conducted on this stage. According to the experiment results, the stage can provide a current of 23.7 kA with a quarter period of 69.6 ns to a shorted load when charged to ±16 kV. When charged to ±50 kV, the stage can provide a current of 41.4 kA in 36.8 ns (10%~90% peak value of current) to a matched load of 0.85 Ω.
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Key words:
- pulse power technique /
- linear transformer driver(ltd) /
- fast stage /
- magnetic core /
- switch
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