Yuan Qi, Deng Zichen, Ding Weidong, Wang Yanan, Wu Jiawei
State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China.
Rev Sci Instrum. 2022 May 1;93(5):051501. doi: 10.1063/5.0079583.
Pulsed power technology is gradually forming a development trend of civil-military integration, which puts forward more requirements for pulsed power generators. This paper takes magnetic switches (MSs) as the starting point and reviews recent advancements in pulse generators based on MSs. First, the working mechanism of the MS "rapid inductance drop after magnetic core saturation" is analyzed. Second, the basic uses of MSs are introduced with specific examples, namely, magnetic compression unit, saturated pulse transformer, and magnetic delay switches. Then, the typical topologies of pulse generators based on MSs are discussed, including transmission line, Marx, Fitch, linear transformer driver, and semiconductor opening switch pumping circuits. These circuits' technical characteristics and parameter levels are highlighted. Finally, the existing problems and future development trends of MS-based solid-state pulse generators are discussed.
脉冲功率技术正逐渐形成军民融合的发展趋势，这对脉冲功率发生器提出了更多要求。本文以磁开关为切入点，综述了基于磁开关的脉冲发生器的最新进展。首先，分析了磁开关“磁芯饱和后电感迅速下降”的工作机制。其次，通过具体实例介绍了磁开关的基本用途，即磁压缩单元、饱和脉冲变压器和磁延迟开关。然后，讨论了基于磁开关的脉冲发生器的典型拓扑结构，包括传输线、马克思发生器、菲奇发生器、线性变压器驱动器和半导体断路开关泵浦电路。突出了这些电路的技术特点和参数水平。最后，讨论了基于磁开关的固态脉冲发生器存在的问题和未来发展趋势。
