With high choppingfrequency and novel control strategy, the size of filter elements is reduced and switching loss of IGBTs drops.
由于采用了较高的斩波频率和新颖的控制策略，减小了滤波元件的尺寸，并降低了IGBT的开关损耗。
2
The transient peak voltage of the heterojunctions were observed when the laser was turned on and off, and increased with choppingfrequency and showed saturate tendency finally.