Fig. 1. Schematic diagram of magnetic core test system under pulse excitation

Fig. 2. Typical waveforms ofu_m(t) and i(t)

Fig. 3. Hysteresis curve of Fe-based nanocrystalline cores

Fig. 4. Pulse hysteresis loops at different equivalent frequency

Fig. 5. Initial magnetization B-H curves

Fig. 6. Relative permeability curves under different dB/dt

Fig. 7. Magnetic pulse compression circuit

Fig. 8. Hysteresis loop fitting diagram

Fig. 9. Schematic circuit diagram and structure diagram of magnetic switch

Fig. 10. Field-circuit coupling simulation waveform

Fig. 11. Magnetic pulse compression system test circuit diagram

Fig. 12. Comparison of experimental waveforms and simulation waveforms