提出了一种快前沿充电型磁压缩发生器,采用高耦合系数脉冲变压器和无串接二极管型原边绕组设计,降低了变压器的杂散电感,可以对磁压缩电路进行快速脉冲式充电,有利于减少磁压缩装置的级数和体积。采用T模型对快前沿变压器充电型磁压缩器的电路进行了等效变换,分析了系统设计的原则。结果表明：系统的等效压缩增益远大于1；磁开关应选用高导磁材料。满足上述条件,磁压缩装置的充电效率和预脉冲现象才能获得理想值。研制了一台快前沿变压器充电型磁压缩脉冲发生器,3 nF电容负载上获得前沿时间为990 ns、幅值为50 kV的脉冲,预脉冲约2 kV,磁压缩器的电压效率为98%。

This paper introduces a magnetic compressor charged by fast risetime transformer. It employs high coupling efficiency transformer and discards the counter protection diode. With this novel design, the magnetic compressor can be quickly charged, which helps to decrease the compression stage and the system volume. The equivalent charging and discharging circuits based on T mode transforming are analyzed. The design principle is presented as followed: (1) the time compression gain should be far beyond 1; (2) the magnetic switch should employ high permeability material. According to the theoretical and simulated results, a magnetic compressor charged by fast risetime transformer is manufactured. The compressor can generate 50 kV, 990 ns risetime pulse on 3 nF capacitor load, with 2 kV pre-pulse and 98% voltage efficiency.