Affiliations: [a] Ministerial Key Laboratory of ZNDY, Nanjing University of Science & Technology, Nanjing, Jiangsu, 210094, China | [b] Quality Inspection and Testing Center, China Electronic Product Reliability and Environmental Testing Research Institute, Guangzhou, Guangdong, 510610, China
Correspondence:
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Corresponding author: He Zhang, Ministerial Key Laboratory of ZNDY, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China. Tel.: +86 025 84315694; Fax: +86 025 84315694; E-mail: hezhangz@njust.edu.cn
Abstract: A high-precision compact seed source for magnetic flux compression generators used an explosive-driven flyer high-power discharge switch was developed in this paper. And the deformation of the flyer in the switch was analyzed by numerical simulation. The compact seed source was a system (𝛷132 × 200 mm3 volume, weighing 12.5 kg, operating voltage 5 kV, storing energy ≮750 J, battery powered with full charge time less than 30 s) capable of delivering over 600 J (≮5.4 KA) into the magnetic flux compression generator (FCG, 42 μH, 78 mΩ) at static condition. On basis of the analysis of the system composition, working principle and the best output sequence model, the test of coupling performance with FCG at dynamic condition has been carried out. The results show that the compact seed source was capable of coupling over 550 J (≮5.2 kA) at dynamic condition with time sequence control error less than 5 μs, effect energy density over 200 mJ/cm3 and transfer efficiency over 75%.
Keywords: Pulsed source, high-precision discharge switch, time sequence control
