There have already a lot of circuit topologies for pulsed power generators using semiconductor switches. In this article, a novel circuit topology concept that can generate bipolar pulses based on linear transformer driver (LTD) topology is presented. Different from traditionally capacitive energy storage (CES) method, we utilize magnetic core as inductive energy storage (IES) medium to accumulate inductive energy before releasing pulses. The repetitive bipolar pulsed power generator is capable of operating in high repetition without reset circuit, because positive magnetization and negative magnetization can lead the magnetic core always back to initial state after every period. In this article, a three-stage laboratory prototype of bipolar IES-based LTD is designed and assembled using six existed CES-based LTD modules, which can generate ~2.4 kV bipolar peak pulses, 55 ns pulsewidth on a 150 Ω150~\Omega resistive load with charging voltage of 80 V. Finally, this proposed three-stage LTD is evaluated under burst mode to verified the high repetition capability of this bipolar IES-based LTD. As a result, this generator can operate at repetitive frequency of 400 kHz without reset.

中文翻译：

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使用感应储能的固态双极线性变压器驱动器


已经有很多使用半导体开关的脉冲功率发生器的电路拓扑。在本文中，提出了一种新颖的电路拓扑概念，可以基于线性变压器驱动器 (LTD) 拓扑生成双极性脉冲。与传统的电容式储能（CES）方法不同，我们利用磁芯作为感应式储能（IES）介质，在释放脉冲之前积累感应能量。重复双极脉冲功率发生器能够在没有复位电路的情况下高重复工作，因为正磁化和负磁化可以使磁芯在每个周期之后总是回到初始状态。在本文中，使用六个现有的基于 CES 的 LTD 模块设计和组装了基于 IES 的双极 LTD 的三级实验室原型，该原型可以在 150 Ω150~\Ω 电阻上生成 ~2.4 kV 双极峰值脉冲、55 ns 脉冲宽度充电电压为 80 V 的负载。最后，在突发模式下对所提出的三级 LTD 进行评估，以验证这种基于双极 IES 的 LTD 的高重复能力。因此，该发生器可以在 400 kHz 的重复频率下运行而无需复位。