Abstract
In this paper, we miniaturize the capacitor charger for pulsed power applications. The capacitor charger circuit is constructed by a single chopper circuit using a MOSFET (Metal Oxide Semiconductor Field Effect Transistor). A single chopper circuit has many advantages. However, due to operate by single switching device, operating power per switching device is higher than other topology. Then, a SiC (Silicon Carbide)-MOSFET is used for switching device, and compared to a single chopper circuit using a Si (Silicon)-MOSFET. In this research, we simulated a single chopper circuit concisely and developed the miniature capacitor charger for repetitive pulsed power generator. Charging time of Si-MOSFET charger and SiC-MOSFET charger are 310µs and 300µs respectively.
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