Development of highly repetitive pulse power system using amorphous metallic cores

A new type of pulse power system has been developed to obtain an efficient, highly repetitive pulse-power generation. The system is constructed of a double pulse circuit (1st stage), step-up transformer and Blumlein pulse forming line (BL) and can generate high power pulse of 600 kV, 24 kA, 60 ns. In the system, discharge gap switches are replaced by magnetic switches. In addition, instead of Marx generator, step-up transformer is utilized to generate high voltage pulse. The system is tested under the double pulse mode where two 1st stage capacitors are connected in parallel and switched with a interval of Td. The minimum value of Td is limited by the recovexy of 1st stage gap switches and at Td≥500 µs (equivalent rep-rate of 2 kHz), the system is operated with good reproducibility. To enhance the recovery, magnetic switch is utilized, which enable the operation at Td≥30 µs (equivalent rep-rate of 33 kHz).