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公开(公告)号：US10469005B2
公开(公告)日：2019-11-05
申请号：US15625622
申请日：2017-06-16
发明人： Hui Min Guo , Shu Zuo Lou , Xiao Ming Chen , Guang Jie Cai , Chun Fai Wong , Yue Li , Chi Ping Sun , Bao Ting Liu , En Hui Wang , Fei Xin , Shing Hin Yeung , Xiu Wen Yang , Li Sheng Liu , Yan Yun Cui , Shu Juan Huang
IPC分类号： H02P6/16 , H02P7/295 , H02P6/22 , H02P6/30 , H02P7/03 , H02P6/20 , H02K11/215 , G01R33/07 , G01D5/14
摘要： The present teaching relates to a magnetic sensor comprising an input port to be connected to an external power supply, a magnetic field detecting circuit configured to generate a magnet detection signal, an output control circuit configured to control operation of the magnetic sensor in response to the magnet detection signal, and an output port. The magnetic field detecting circuit includes a magnetic sensing element configured to detect an external magnetic field and output a detection signal, a signal processing element configured to amplify the detection signal and removing interference from the detection signal to generate processed detection signal, and an analog-digital conversion element configured to convert the processed detection signal into a magnet detection signal, and the output control circuit is configured to control the magnetic sensor to operate in at least one of a first state and a second state responsive to at least the magnet detection signal.
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公开(公告)号：US10199965B2
公开(公告)日：2019-02-05
申请号：US15230975
申请日：2016-08-08
发明人： Guang Jie Cai , Chun Fai Wong , Yue Li , Chi Ping Sun , Bao Ting Liu , En Hui Wang , Fei Xin , Shing Hin Yeung , Xiu Wen Yang , Li Sheng Liu , Yan Yun Cui , Shu Juan Huang
IPC分类号： H02P6/08 , H02P6/14 , B62D5/04 , H02P6/16 , H02P6/20 , H02K11/215 , G01R33/07 , H02P7/295 , H02P6/30 , H02P7/03 , H02P6/22
摘要： A magnetic sensor integrated circuit, a motor and an application apparatus. The magnetic sensor includes a magnetic sensor, a signal processing unit, an output control circuit and an output port. The magnetic sensor receives a constant current sense a magnetic polarity of an external magnetic field and output a differential signal. The signal processing unit amplifies the differential signal and eliminates an offset of the differential signal to obtain a magnetic field detection signal. The output control circuit control, at least based on the magnetic field detection signal, the magnetic sensor integrated circuit to operate in at least one a first state in which a current flows from the output port to the outside and a second state in which a current flows from the outside into the output port.
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公开(公告)号：US09755555B2
公开(公告)日：2017-09-05
申请号：US14822353
申请日：2015-08-10
发明人： Yue Li , Chi Ping Sun , Bao Ting Liu , En Hui Wang , Fei Xin , Shing Hin Yeung , Xiu Wen Yang , Yan Yun Cui , Shu Juan Huang
CPC分类号： H02P6/20 , G01D5/142 , H02K11/044 , H02K11/20 , H02K11/33 , H02P6/16 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05 , Y02P80/116
摘要： A drive circuit for an electric motor connected in series with an AC power source between a first node and a second node. The drive circuit includes a controllable bidirectional AC switch, an AC-DC conversion circuit connected in parallel with the controllable bidirectional AC switch between the first node and the second node, a position sensor configured to detect a position of a rotor of the motor, and a switch control circuit configured to control the controllable bidirectional AC switch to be conductive or non-conductive in a predetermined way, based on the position of the rotor and a polarity of the AC power source.
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公开(公告)号：US09407180B2
公开(公告)日：2016-08-02
申请号：US14555924
申请日：2014-11-28
发明人： Chi Ping Sun , Fei Xin , Xiu Wen Yang , Shing Hin Yeung , Yun Long Jiang , Yan Yun Cui
CPC分类号： H02P6/14 , H02M1/4225 , H02M5/44 , H02M7/217 , H02M7/219 , H02P27/06 , Y02B70/126
摘要： A power converting circuit for supplying power to an inductive load, includes an inductance, a switching circuit and an energy saving circuit. The inductance is charged when the switching circuit is conductive and discharges energy to the energy saving circuit and the inductive load when the switching circuit is nonconductive. The energy saving circuit discharges energy to the inductive load when the switching circuit is conductive.
摘要翻译： 用于向感性负载供电的电力转换电路包括电感，开关电路和节能电路。 当开关电路导通时，电感被充电，并且当开关电路不导通时，将能量放电到节能电路和感性负载。 当开关电路导通时，节能电路向感性负载放电。
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公开(公告)号：US09973121B2
公开(公告)日：2018-05-15
申请号：US15230941
申请日：2016-08-08
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 , H02P6/20 , H02P6/30 , H02K11/215 , G01R33/07 , G01D5/14 , H02P7/295 , H02P7/03
CPC分类号： H02P6/16 , G01D5/145 , G01R33/07 , H02K11/215 , H02P6/20 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
摘要： The present teaching relates to a magnetic sensor residing in a housing. The magnetic sensor includes an input port and an output port, both extending from the housing, wherein the input port is to be connected to an external alternating current (AC) power supply. The magnetic sensor also includes an electric circuit which comprises an output control circuit coupled with the output port and configured to be at least responsive to a magnetic induction signal and the external AC power supply to control the magnetic sensor to operate in a state in which a load current flows through the output port. The magnetic induction signal is indicative of at least one characteristic of an external magnetic field detected by the electrical circuit and the operating frequency of the magnetic sensor is positively proportional to the frequency of the external AC power supply.
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公开(公告)号：US09966883B2
公开(公告)日：2018-05-08
申请号：US15231086
申请日：2016-08-08
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.
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公开(公告)号：US09716453B2
公开(公告)日：2017-07-25
申请号：US15231162
申请日：2016-08-08
发明人： Hui Min Guo , Shu Zuo Lou , Xiao Ming Chen , Guang Jie Cai , Chun Fai Wong , Yue Li , Chi Ping Sun , Bao Ting Liu , En Hui Wang , Fei Xin , Shing Hin Yeung , Xiu Wen Yang , Li Sheng Liu , Yan Yun Cui , Shu Juan Huang
IPC分类号： H02K29/08 , H02P6/16 , H02P6/22 , H02K11/215 , G01R33/07 , G01D5/14 , H02P6/20 , H02P7/295 , H02P6/30 , H02P7/03
CPC分类号： H02P6/16 , G01D5/145 , G01R33/07 , H02K11/215 , H02P6/20 , H02P6/22 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
摘要： The present teaching relates to a magnetic sensor comprising an input port to be connected to an external power supply, a magnetic field detecting circuit configured to generate a magnet detection signal, an output control circuit configured to control operation of the magnetic sensor in response to the magnet detection signal, and an output port. The magnetic field detecting circuit includes a magnetic sensing element configured to detect an external magnetic field and output a detection signal, a signal processing element configured to amplify the detection signal and removing interference from the detection signal to generate processed detection signal, and an analog-digital conversion element configured to convert the processed detection signal into a magnet detection signal, and the output control circuit is configured to control the magnetic sensor to operate in at least one of a first state and a second state responsive to at least the magnet detection signal.
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公开(公告)号：US09696182B2
公开(公告)日：2017-07-04
申请号：US15231213
申请日：2016-08-08
发明人： Hui Min Guo , Shu Zuo Lou , Xiao Ming Chen , Guang Jie Cai , Chun Fai Wong , Yue Li , Chi Ping Sun , Bao Ting Liu , En Hui Wang , Fei Xin , Shing Hin Yeung , Xiu Wen Yang , Li Sheng Liu , Yan Yun Cui , Shu Juan Huang
摘要： The present teaching relates to a magnetic sensor comprising an input port, a magnetic field detecting circuit that generates a magnet detection signal, an output control circuit that controls operation of the magnetic sensor, and an output port. The magnetic field detecting circuit includes a magnetic sensing element that detects an external magnetic field and output a detection signal, a signal processing element configured to amplify the detection signal and removing interference from the detection signal, and an analog-digital conversion element configured to convert the processed detection signal into a magnet detection signal, and the output control circuit controls the magnetic sensor to operate in at least one of a first state and a second state responsive to at least the magnet detection signal, wherein the signal processing element comprises an amplifier and a filter circuit, and gain of the amplifier is greater than gain of the filter circuit.
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公开(公告)号：US09385640B2
公开(公告)日：2016-07-05
申请号：US14555394
申请日：2014-11-26
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
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。
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