单模块直线变压器脉冲前沿
Rising edges of pulses generated by single module linear transformer driver
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摘要: 从理论上对直线变压器驱动源（LTD）输出脉冲波形的前沿进行了分析，研究了不同前沿畸变情况下对应的电路参数，并给出了计算方法，得到了相对电压和相对时间的关系曲线。根据理论分析设计了单模块LTD，并根据设计参数进行了数值模拟，模拟得到的输出脉冲前沿约30 ns、平顶约130 ns、幅值约125 kV。最后进行了单模块LTD实验，测得输出脉冲前沿约35 ns、平顶约130 ns、幅值约125 kV的输出脉冲，与模拟结果基本一致。由于负载不完全匹配等因素的影响，波形后沿较差且有振荡，但仍符合设计要求。Abstract: The rising edge of the output voltage generated by a linear transformer driver(LTD) was analyzed, and circuit parameters corresponding to the aberration forms of the output voltages were investigated. An LTD was designed based on these analysis, and then simulated with designed parameters. The result is an output pulse with 30 ns rising time, 130 ns pulse width and 125 kV amplitude. A single LTD stage was experimented and generated an output pulse with 35 ns rising time, 130 ns pulse width and 125 kV amplitude, basically consistent with the simulated one. Although the falling edge is not too well with oscillations for several factors like imperfect load match. However, it could still meet the design requirement．
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