| 发明名称 | Control circuit for a DC motor | ||
| 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. | ||
| 申请公布号 | US9385640(B2) | 申请公布日期 | 2016.07.05 |
| 申请号 | US201414555394 | 申请日期 | 2014.11.26 |
| 申请人 | JOHNSON ELECTRIC S.A. | 发明人 | Sun Chi Ping;Xin Fei;Yang Xiu Wen;Yeung Shing Hin;Jiang Yun Long;Cui Yan Yun;Wong Sin Sang;Yi Zhu Qing |
| 分类号 | H02P6/18;H02P6/00;H02P3/12;H02P7/285 | 主分类号 | H02P6/18 |
| 代理机构 | Muncy, Geissler, Olds & Lowe, P.C. | 代理人 | Muncy, Geissler, Olds & Lowe, P.C. |
| 主权项 | 1. A control circuit for a DC motor, comprising: a first DC port and a second DC port for connection to a DC source; a H-bridge driving circuit, comprising a first switch and a second switch connected in series between the first and second DC ports, and a third switch and a fourth switch connected in series between the first and second DC ports, a first output port lying between the first and the second switches and a second output port lying between the third and the fourth switches, the output ports being arranged for connection to the DC motor; and a shunt circuit connected between the first and second output ports and having a resistance that will decrease in response to a BEMF generated by the DC motor. | ||
| 地址 | Murten CH | ||