该文检测器件集射极电压确定输出电流方向，并据此实现四步换流。
In this design, the collector-to-emitter voltage is sensed to determine the directions of the output currents for the 4-step commutation strategy.
该文检测器件集射极电压确定输出电流方向，并据此实现四步换流。
In this design, the collector-to-emitter voltage is sensed to determine the directions of the output currents for the 4-step commutation strategy.
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