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公开(公告)号：US09692329B2
公开(公告)日：2017-06-27
申请号：US15231192
申请日：2016-08-08
Applicant: Johnson Electric S.A.
Inventor： 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: H02K29/08 , H02P6/16 , H02P6/22 , H02K11/215 , G01R33/00 , H02P6/20 , H02P7/295 , H02P6/30 , H02P7/03
CPC classification number: H02P6/16 , G01R33/0029 , H02K11/215 , H02P6/20 , H02P6/22 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
Abstract: 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 a folded cascode amplifier.
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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
Applicant: Johnson Electric S.A.
Inventor： 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: H02P6/16 , H02P7/295 , H02P6/22 , H02P6/30 , H02P7/03 , H02P6/20 , H02K11/215 , G01R33/07 , G01D5/14
Abstract: 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
Applicant: Johnson Electric S.A.
Inventor： 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: H02P6/08 , H02P6/14 , B62D5/04 , H02P6/16 , H02P6/20 , H02K11/215 , G01R33/07 , H02P7/295 , H02P6/30 , H02P7/03 , H02P6/22
Abstract: 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
Applicant: Johnson Electric S.A.
Inventor： 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 classification number: H02P6/20 , G01D5/142 , H02K11/044 , H02K11/20 , H02K11/33 , H02P6/16 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05 , Y02P80/116
Abstract: 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：US09614431B2
公开(公告)日：2017-04-04
申请号：US14856946
申请日：2015-09-17
Applicant: Johnson Electric S.A.
Inventor： En Hui Wang , Fei Xin , Chi Ping Sun , Ming Li Zhang
CPC classification number: H02M1/32 , H02H7/1222 , H02H9/041 , H02M7/066 , H02M7/2176 , H02P6/14 , H02P6/26
Abstract: A control circuit includes: an input terminal for receiving an input AC voltage; a voltage decreasing unit for decreasing the input AC voltage; an A-D converter for converting the decreasing AC voltage to a DC voltage; a driving unit for receiving the DC voltage and to driving a motor, a detecting unit for detecting the DC voltage; and a current shunt unit configured to be conductive to lower the DC voltage at the output terminal of the A-D converter to a voltage which is less than a threshold voltage when the detecting signal indicates that the detected DC voltage exceeds the threshold value. A motor device includes the control circuit and a motor.
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Patent Agency Ranking
公开(公告)号：US09407180B2
公开(公告)日：2016-08-02
申请号：US14555924
申请日：2014-11-28
Applicant: Johnson Electric S.A.
Inventor： Chi Ping Sun , Fei Xin , Xiu Wen Yang , Shing Hin Yeung , Yun Long Jiang , Yan Yun Cui
CPC classification number: H02P6/14 , H02M1/4225 , H02M5/44 , H02M7/217 , H02M7/219 , H02P27/06 , Y02B70/126
Abstract: 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.
Abstract translation: 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
Applicant: Johnson Electric S.A.
Inventor： 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: G01R15/14 , G01R33/02 , G01N33/20 , H02P6/16 , H02P6/20 , H02P6/30 , H02K11/215 , G01R33/07 , G01D5/14 , H02P7/295 , H02P7/03
CPC classification number: H02P6/16 , G01D5/145 , G01R33/07 , H02K11/215 , H02P6/20 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
Abstract: 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
Applicant: Johnson Electric S.A.
Inventor： 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: G01R15/14 , G01R33/02 , G01N33/20 , H02P6/16 , H02P6/22 , H02K11/215 , G01R33/07 , G01D5/14 , H02P6/30 , H02P6/26
CPC classification number: H02P6/16 , G01D5/145 , G01R33/07 , H02K11/215 , H02P6/22 , H02P6/26 , H02P6/30 , H02P2207/05
Abstract: 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
Applicant: Johnson Electric S.A.
Inventor： 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: H02K29/08 , H02P6/16 , H02P6/22 , H02K11/215 , G01R33/07 , G01D5/14 , H02P6/20 , H02P7/295 , H02P6/30 , H02P7/03
CPC classification number: H02P6/16 , G01D5/145 , G01R33/07 , H02K11/215 , H02P6/20 , H02P6/22 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
Abstract: 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
Applicant: Johnson Electric S.A.
Inventor： 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
CPC classification number: G01D5/20 , H02P6/16 , H02P6/20 , H02P6/30 , H02P7/05 , H02P7/295 , H02P2207/05
Abstract: 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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