在双电压合成矩阵变换器中，需要将每个周期内的输入、输出电压划分成若干扇区。

The input and output voltages in matrix converter based on two voltage synthesis are supposed to be divided into some sectors in each period.

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变换器的输入功率因数较高，基本在0.99 左右。

The input power factor of the converter is about 0.99.

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其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。

Its feature is that the input logical signal is converted to drive power by a special isolated converter, which makes a IGBT module turn on or off quickly, without any other biased voltage sources.

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