公开(公告)号：US20120074887A1

公开(公告)日：2012-03-29

申请号：US13213304

申请日：2011-08-19

申请人： Guo-Jhih Yan ,  Kai-Hsiung Chang ,  Sheng-Chan Yen ,  Yen-Chih Liu ,  Jia-Chang Chen

发明人： Guo-Jhih Yan ,  Kai-Hsiung Chang ,  Sheng-Chan Yen ,  Yen-Chih Liu ,  Jia-Chang Chen

IPC分类号： H02P6/18

CPC分类号： H02P6/182

摘要： A back EMF measuring method for multi-phase BLDC motor is proposed, which includes a driving process and a measuring process. The driving process energizes a plurality of phase windings of a detected motor by driving signals generated by a computing unit to rotate a rotor of the detected motor to a predetermined speed. The measuring process selects one of the phase windings as a target phase winding, continuously sends the driving signals to the phase windings other than the target phase winding but stops the driving signal sent to the target phase winding by the computing unit, and measures the back EMF of the target phase winding by a signal sensing unit.

摘要翻译： 提出了一种多相BLDC电机的反电动势测量方法，包括驱动过程和测量过程。 驱动过程通过驱动由计算单元产生的信号来激励所检测的电动机的多个相绕组，以将检测到的电动机的转子旋转到预定的速度。 测量过程选择相绕组中的一个作为目标相绕组，连续地将驱动信号发送到除了目标相绕组之外的相绕组，但是停止由计算单元发送到目标相绕组的驱动信号，并测量后 通过信号感测单元进行目标相绕组的EMF。