In this paper, the development of a five-stage solid-state linear transformer driver (LTD) is described. Each stage consists of eight compact pulse generating modules and a magnetic core. The pulse generating modules contain a multilayer-ceramic-capacitor-based pulse-forming network (PFN) and an insulated-gate bipolar transistor (IGBT) switch array, as well as magnetic switches, which are used to speed up the pulse front. To prevent damage from the reverse voltage to the IGBT switch, a reverse voltage absorption circuit was added to the PFN. For this study, a larger cross-sectional core with improved output characteristics was adopted. The developed five-stage LTD has the advantages of long life, low jitter, fast rising edge, and so on. The device can provide a 35 kV, 119 ns, 4.3 kA square pulse train with a maximum frequency of 50 Hz. On this basis, a 50-stage LTD of output 500 kV, which would serve as a high-power microwave driver source, is under development.

中文翻译：

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五级固态线性变压器驱动器的研制

在本文中，描述了五级固态线性变压器驱动器 (LTD) 的开发。每级由八个紧凑的脉冲发生模块和一个磁芯组成。脉冲生成模块包含基于多层陶瓷电容器的脉冲形成网络 (PFN) 和绝缘栅双极晶体管 (IGBT) 开关阵列，以及用于加速脉冲前沿的磁开关。为防止反向电压对 IGBT 开关造成损坏，PFN 中增加了反向电压吸收电路。在本研究中，采用了具有改进输出特性的更大横截面磁芯。开发的五级LTD具有寿命长、抖动低、上升沿快等优点。该器件可提供最大频率为 50 Hz 的 35 kV、119 ns、4.3 kA 方波脉冲序列。