公开(公告)号：US09966883B2

公开(公告)日：2018-05-08

申请号：US15231086

申请日：2016-08-08

申请人： Johnson Electric S.A.

发明人： Chi Ping Sun ,  Fei Xin ,  Ken Wong ,  Shing Hin Yeung ,  Hui Min Guo ,  Shu Zuo Lou ,  Xiao Ming Chen ,  Guang Jie Cai ,  Chun Fai Wong ,  Shu Juan Huang ,  Yun Long Jiang ,  Yue Li ,  Bao Ting Liu ,  En Hui Wang ,  Xiu Wen Yang ,  Li Sheng Liu ,  Yan Yun Cui

IPC分类号： G01R15/14 ,  G01R33/02 ,  G01N33/20 ,  H02P6/16 ,  H02P6/22 ,  H02K11/215 ,  G01R33/07 ,  G01D5/14 ,  H02P6/30 ,  H02P6/26

CPC分类号： H02P6/16 ,  G01D5/145 ,  G01R33/07 ,  H02K11/215 ,  H02P6/22 ,  H02P6/26 ,  H02P6/30 ,  H02P2207/05

摘要： The present teaching relates to a method/apparatus for a magnetic sensor. The apparatus of the magnetic sensor resides in a housing and includes an input port and an output port, both extending from the housing. The apparatus also includes an electrical circuit which comprises a magnetic field detecting circuit, configured to detect an external magnetic field and output a magnetic induction signal that is indicative of information related to the external magnetic field, an output control circuit coupled between the magnetic field detecting circuit and the output port, and a state control circuit coupled with the output control circuit and configured to determine whether a predetermined condition is satisfied and signal the same to the output control circuit. When the predetermined condition is satisfied, the state control circuit is at least responsive to the magnetic induction signal to enable the output control circuit to control the magnetic sensor to operate in at least one of a first state and a second state. In the first state, a load current flows in a first direction from the output port to outside of the magnetic sensor. In the second state, a load current flows in a second direction opposite of the first direction from outside of the magnetic sensor into the magnetic sensor via the output port. When the predetermined condition is not satisfied, the state control circuit enables the output control circuit to control the magnetic sensor to operate in a third state.

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。