Development on high-power and high power density capacitor charging power supply

This paper discussed the high-power and the miniaturization technology of capacitor charging power supply. The design and implementation of parallel operating high power density CCPS prototype with "peak current shifting control" was described. The single CCPS prototype output power is 35kW and the whole output power of parallel operating CCPS is 70kW. Based on high switching frequency of 50 kHz and optimized transient thermal design technology the power density of 28.8 W/in 3 is achieved with 60s operating times.