Study of Impedance Matching Characteristics of Accumulator Packs and High Frequency Inverter

The working principle of high frequency high voltage capacitor charging power supply(CCPS) using series reso-nant circuit is analyzed.And a resolve scheme for the matching problem of lithium accumulator packs and high frequency high voltage CCPS using high frequency full-bridge inverter is presented.The influence of down-lead inductance and parasitic inductance of inverter's switch on the switching process of the high frequency inverter is researched,and some resolve schemes are presented.The experiments are taken on the 40 kW/10 kV/20 kHz CCPS.