公开(公告)号：US06933688B2

公开(公告)日：2005-08-23

申请号：US10439905

申请日：2003-05-16

申请人： Xi Junnan ,  Mitsuo Konno

发明人： Xi Junnan ,  Mitsuo Konno

IPC分类号： H02M7/48 ,  H02M7/5387 ,  H02P6/00 ,  H02P6/08 ,  H02P6/12 ,  H02P5/168

CPC分类号： H02P6/085 ,  H02P6/26

摘要： A brushless direct current motor drive circuit having a serially connected motor coil energizing circuit, a serially connected feedback circuit, a pre-drive circuit, a position sensor, and a duty ratio controller. This circuit can decrease the heat generation from the switching elements on the power source side, perform absorption of the current flowing back in the direction of the switching elements on the power source side when the duty ratio is set to less than 100% without using an electrolytic capacitor group that causes a shortening of the motor lifetime, and solve various problems caused by the use of an electrolytic capacitor group.

摘要翻译： 一种具有串联连接的电动机线圈通电电路，串联连接的反馈电路，预驱动电路，位置传感器和占空比控制器的无刷直流电动机驱动电路。 该电路可以减少来自电源侧的开关元件的发热，当占空比设定为小于100％时，不会使用在电源侧的开关元件的方向上的电流的吸收， 电解电容器组，其使电机寿命缩短，并且解决了使用电解电容器组引起的各种问题。