无刷直流永磁电机的电源虽是直流电，但其内部绕组中的电流仍是交流电，其旋转部分犹如同步电机的磁极转子，其结构及电磁原理与同步电机相似。
With the power being DC, the current of inner winding of the magneto is AC, and the rotating part is just similar to the magnetic rotor of synchronous dynamo.
电机系统emi无源滤波器由电源滤波器和输出侧滤波器组成。
So EMI passive filter of motor system is composed by mains filter and output side filter.
纳尔逊加缪说，我认为他自己建自己的模式，1993年，他成功地获得了一个自我运行电机无外接电源期间6个月！ ！
Nelson Camus has said to me that he has built himself his own model in 1993 and that he has succeed to obtain a self-running motor without external power during a period of 6 months!
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