The magnetic reset by each pulse is proposed in this paper . that is how to control modulation ratio and let the increase of magnetic flux with each high frequency pulse reset to zero . so it will avoid magnetic flux saturation 本文采用逐个脉冲磁复位技术，就是在每个高频脉冲之后及时采取措施，使每一个高频脉冲引起的磁通增加都回复到零，从而避免磁芯磁通饱和。
