公开(公告)号：US09385640B2

公开(公告)日：2016-07-05

申请号：US14555394

申请日：2014-11-26

申请人： Johnson Electric S.A.

发明人： Chi Ping Sun ,  Fei Xin ,  Xiu Wen Yang ,  Shing Hin Yeung ,  Yun Long Jiang ,  Yan Yun Cui ,  Sin Sang Wong ,  Zhu Qing Yi

IPC分类号： H02P6/18 ,  H02P6/00 ,  H02P3/12 ,  H02P7/285

CPC分类号： H02P6/06 ,  H02P3/12 ,  H02P7/285

摘要： A control circuit for a DC motor, has: a first and second input ports for connection to a DC source; a H-bridge driving circuit, having first and second switches connected in series between the input ports, and third and fourth switches connected in series between the input ports, a first output port between the first and second switches and a second output port between the third and fourth switches, and a shunt circuit and/or a blocking circuit. The motor is connected between the first and second output ports. The shunt circuit is connected between the first second output ports and has a resistance that will decrease in response to BEMF generated by the motor. The blocking circuit is connected in series with the motor between the output ports and has a resistance that increases in response to BEMF generated by the motor.

摘要翻译： 一种用于直流电动机的控制电路，具有用于连接到直流电源的第一和第二输入端口; H桥驱动电路，具有串联连接在输入端口之间的第一和第二开关以及串联连接在输入端口之间的第三和第四开关，第一和第二开关之间的第一输出端口和位于第一和第二开关之间的第二输出端口 第三和第四开关，以及分流电路和/或阻塞电路。 电机连接在第一和第二输出端口之间。 分流电路连接在第一个第二输出端口之间，并具有响应于电动机产生的BEMF而减小的电阻。 阻塞电路与输出端口之间的电动机串联连接，并具有响应于电动机产生的BEMF而增加的电阻。