Analysis and design of magnetic compressor charged by fast risetime transformer

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.