Research on Discharge Characteristics of Pulsed Power Supply for Coil Launch

In order to effectively study the discharge performance of pulsed power supply for coil launch, the discharge electrical characteristics of key devices such as pulse capacitor, freewheeling diode and thyristor is analyzed for load of coils with different turns. To solve the problem of excessive surge current on the diode during the discharge process, a freewheeling topology with suppress circuit was designed. The simulation results show that the impact on diodes and capacitors will be reduced as the number of coil turns increases, the peak surge current of diodes and the repeated charging and discharging time of capacitors is effectively reduced by the method of increasing the suppression impedance in the freewheeling circuit, and the reliability of pulse power discharging is improved.