With the development of semiconductor switches in recent years, inductive energy storage has shown a good application potential in pulsed-power supplies. In our previous studies, a repetitive inductive pulsed-power supply (IPPS) circuit topology was proposed to generate continuous current pulses. An insulated-gate bipolar transistor (IGBT) is used as the main switch to cut off the charging current in this topology. Limited by the current turning off ability of the main switch, it may encounter difficulties in expanding to higher charging currents. In this article, with the concept of inverse current commutation with semiconductor devices (ICCOS) switch, which is proposed by the German-French Institute of Saint Louis (ISL), an improved repetitive IPPS circuit topology is proposed by using a bridge current commutation unit as ICCOS. The thyristor acts as the main switch in the improved circuit and the charging current is turned off by a precharged capacitor. To turn off the charging current for the next cycle, the capacitor can be self-charged by the leakage flux of the pulse transformer and the back electromotive force from the load. Other than that, when the load current pulse reaches the required width, the residual energy of the system can be recovered by switching the inductor to the charging state. Simulation and comparative study show that the improved circuit is suitable for the generation of repetitive current pulses in high-energy systems.

中文翻译：

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采用 ICCOS 技术的改进型重复感应脉冲电源电路

近年来，随着半导体开关的发展，感应储能在脉冲电源中显示出良好的应用潜力。在我们之前的研究中，提出了一种重复感应脉冲电源 (IPPS) 电路拓扑来产生连续电流脉冲。在此拓扑中，绝缘栅双极晶体管 (IGBT) 用作主开关来切断充电电流。受主开关电流关断能力的限制，扩展到更高的充电电流可能会遇到困难。在本文中，借助德法圣路易斯研究所 (ISL) 提出的半导体器件 (ICCOS) 开关反向电流换向的概念，提出了一种改进的重复 IPPS 电路拓扑结构，即使用桥式电流换向单元作为 ICCOS。晶闸管作为改进电路中的主开关，充电电流由预充电的电容器关闭。为了关闭下一个周期的充电电流，电容器可以通过脉冲变压器的漏磁通和负载的反电动势进行自充电。除此之外，当负载电流脉冲达到所需的宽度时，可以通过将电感器切换到充电状态来回收系统的剩余能量。仿真和对比研究表明，改进后的电路适用于高能系统中重复电流脉冲的产生。电容器可以通过脉冲变压器的漏磁通和负载的反电动势进行自充电。除此之外，当负载电流脉冲达到所需的宽度时，可以通过将电感器切换到充电状态来回收系统的剩余能量。仿真和对比研究表明，改进后的电路适用于高能系统中重复电流脉冲的产生。电容器可以通过脉冲变压器的漏磁通和负载的反电动势进行自充电。除此之外，当负载电流脉冲达到所需的宽度时，可以通过将电感器切换到充电状态来回收系统的剩余能量。仿真和对比研究表明，改进后的电路适用于高能系统中重复电流脉冲的产生。