基于MCT集成封装的低电感爆炸箔起爆系统设计与放电性能研究
基金项目:
十四五共用技术项目（No.90903060201）
Design and Discharge Characteristics of a Low-Inductance Exploding Foil Initiator System with Integrated MCT Packaging
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摘要:为解决传统爆炸箔起爆系统（EFIs）的高电感、大体积和低能量利用率问题，提出一种基于MOS控制晶闸管（MCT）集成封装的低电感EFI设计。该设计通过将MCT与EFI一体化封装，缩短了放电回路，结合电容放电单元（CDU）优化，有效降低了系统寄生参数。实验显示，集成式设计电感降至44 nH，放电周期缩短至841 ns，性能优于分装式设计。在800 V电压下，集成式CDU峰值电流达1 283 A，较分装式提高3.9%，放电效率提升。实验验证了该设计在降低发火能量、缩小体积和提升可靠性方面的优势，为高精度起爆系统的小型化与高效能化提供新思路。
Abstract:To address the issues of high inductance, large volume, and low energy efficiency in traditional exploding foil initiator system(EFIs) , a low-inductance EFI design based on integrated MOS-controlled thyristor (MCT) packaging was proposed. By integrating the MCT with the EFI into a single package and optimizing the capacitor discharge unit (CDU), the discharge circuit path is shortened, effectively reducing system parasitic parameters. Experimental results demonstrate that the integrated design achieves a circuit inductance of 44 nH and a discharge period of 841 ns, outperforming the packaged design. At a 800 V charging voltage, the integrated CDU delivers a peak current of 1 283 A, 3.9% higher than the packaged version, with improved discharge efficiency. The experiments validate the advantages of this design in reducing ignition energy, minimizing system size, and enhancing reliability, providing new insights for the miniaturization and high-efficiency development of high precision initiation systems.
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