电机MPM-B1651M-MJ74AA

MPM-B1651M-MJ74AA众所周知，永磁体提供的磁极磁场在电机旋转过程中固定不变的，这就是要求每个时刻定子绕组产生的电枢磁场转子的磁极磁场相对应，即绕组的电流方向、导通与关断受转子位置的控制。因此，无刷直流电机有转子位置信号输出给电机的控制电路，电机的控制电路根据转子位置信号来控制相应的功率开关管的导通与关断，从而控制相应绕组的电流方向、导通与关断。定子绕组若按通电顺序进行切换，就可以形成一个与转子位置对应的旋转磁场，使电机按要求的旋转方向旋转。相对磁钢的某一磁极而言，每个时刻与它对应的电枢磁场是固定的，即绕组的电流方向是固定的，这与有刷直流电机类似。

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