也许最重要的特点是回归到原点开关。
Perhaps the most important feature is the Return To Home switch.
讨论了基于双电压控制的矩阵变换器的开关状态及控制函数，提出了原点开关概念和开关状态控制函数表。
The switch state and control function of Matrix Convetter based on two-voltage control technique is researched, Source key is presented, and the control table of switch state is given.
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