1.本文对一种高效的升压式PWM 变换电路作了分析研究 对开关状态的切换效率高 采用双零软开关工作，大大降低了开关损耗, 提 高了电路的转换效率. 2.该电路在高频的开关电源、逆变器等电力电子电路上有很大的实用价值, 可以提高电路的转换效率. -1. In this paper, an efficient step-up PWM conversion circuit analysis study on the switch to switch the state of high effi

在PSPICE环境先进行矩阵变换器的四步换流的仿真，同时对各个开关进行开关损耗的分析！-PSPICE environment in the first matrix converter commutation four-step simulation, as well as to analyze the switching losses of the switches!