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While the insensitive of new slapper detonator ensuring the security, it proposes some special requirements on initiating conditions that metal foil may detonate in specific high voltage and high impulse current. But generation of high impulse current increases not only the technical difficulty of the power, but also the volume, power consumption and cost of the entire system. This article presents an approach to generate high impulse current with utilization of low-energy power. The theoretical calculation and experimental results show that higher measurement current can be generated in this method. By application of the technique in the intensive initiating system can detonation be real-time and reliable as well as improve the security of the system. Therefore, it owns certain theoretical and practical value.