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公开(公告)号：US20180131299A1
公开(公告)日：2018-05-10
申请号：US15803180
申请日：2017-11-03
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Ken WONG , Huimin GUO , Yat Tung LAI , Shujuan HUANG
Abstract: A RC oscillator comprises a resistor unit. The resistor unit can comprise at least one set of compensation resistor. Each set of compensation resistor comprises a positive temperature coefficient resistor and a negative temperature coefficient resistor coupled in series with the positive temperature coefficient resistor.
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公开(公告)号：US20180138791A1
公开(公告)日：2018-05-17
申请号：US15812089
申请日：2017-11-14
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Fei XIN , Shinghin YEUNG , Xiuwen YANG , Shujuan HUANG , Yunlong JIANG
CPC classification number: H02K19/04 , H02K1/14 , H02K11/215 , H02K21/16 , H02K29/08 , H02P1/00 , H02P1/04 , H02P6/15 , H02P6/20
Abstract: A motor and an application apparatus are provided. The motor includes a stator having a stator core and a stator winding wound on the stator core, a rotor, a magnetic sensor configured to detect a magnetic field polarity of the rotor and output a corresponding signal, and a motor driving circuit configured to drive the rotor to rotate with respect to the stator based on the signal output from the magnetic sensor. At a rest position of the rotor, the magnetic sensor is arranged with an advance angle with respect to a polar axis of the rotor, to make the motor have a high starting torque.
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公开(公告)号：US20180131300A1
公开(公告)日：2018-05-10
申请号：US15803229
申请日：2017-11-03
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Qiubao WANG , Ken WONG , Enhui WANG , Haibo JIANG , Shujuan HUANG
CPC classification number: H02P6/17 , F04D13/06 , G01D5/145 , G11B21/08 , H02K11/044 , H02P1/22 , H02P6/06 , H02P6/22 , H02P23/0004
Abstract: A motor-driven integrated circuit comprises a plurality of position comparators, a timer and a central processing. Each of the plurality of position comparators receives a pole detection signal denoted a position of a rotor of a motor. The timer receives a timing interrupt signal output by the plurality of position comparators when a predetermined edge of the pole detection signal is generated and records a time of the predetermined edge. The central processing unit obtains a rotation speed of the motor according to a time difference between two predetermined edges.
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公开(公告)号：US20180131295A1
公开(公告)日：2018-05-10
申请号：US15803201
申请日：2017-11-03
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Ken WONG , Huimin GUO , Yat Tung LAI , Yunlong JIANG
CPC classification number: H02P1/22 , F04D13/06 , G01D5/145 , H02M7/48 , H02P6/16 , H02P6/17 , H02P23/0004 , H03B5/04 , H03K3/0231
Abstract: A motor-driven integrated circuit can include a bare die having an 8-bit microcontroller. The 8-bit microcontroller is fabricated by a 0.15 μm semiconductor process.
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公开(公告)号：US20180128652A1
公开(公告)日：2018-05-10
申请号：US15803116
申请日：2017-11-03
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Qiubao WANG , Ken WONG , Enhui WANG , Haibo JIANG , Yunlong JIANG
CPC classification number: G01D5/24409 , F04D13/06 , G01D5/145 , G05B11/28 , H02P6/17 , H02P23/0004 , H02P23/0077
Abstract: A motor-driven integrated circuit comprises a multiple-time programmable memory to store a motor driven program, a memory having a capacity larger than or equal to a capacity of the multiple-time programmable memory, and a central processing unit. When the motor-driven integrated circuit is powered or reset, the central processing unit copies the driven program from the multiple-time programmable memory to the memory.
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Patent Agency Ranking
公开(公告)号：US20180145614A1
公开(公告)日：2018-05-24
申请号：US15817967
申请日：2017-11-20
Applicant: Johnson Electric S.A.
Inventor： Yue LI , Chiping SUN , Fei XIN , Shinghin YEUNG , Xiuwen YANG , Shujuan HUANG
Abstract: A motor driving device for brushless direct current motors and an application apparatus thereof are provided. The motor driving device includes an inverter, a plurality of motor branches, and a microprocessor. The inverter includes a plurality of semiconductor switches to output an alternating current power via a first output terminal and a second output terminal. The plurality of motor branches are connected in parallel between the first output terminal and the second output terminal of the inverter, and each of the plurality of motor branches comprising a motor and a controllable bidirectional alternating current switch connected in series. The microprocessor controls a conduction manner of the semiconductor switches in the inverter, and whether to turn of the controllable bidirectional alternating current switch in each of the plurality of motor branches.
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公开(公告)号：US20180138848A1
公开(公告)日：2018-05-17
申请号：US15812224
申请日：2017-11-14
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Xiuwen YANG , Shinghin YEUNG , Shujuan HUANG , Yunlong JIANG
IPC: H02P23/24 , H02M7/06 , H02P6/30 , H02P25/022 , G01D5/14
CPC classification number: H02P6/182 , G01D5/142 , G01D5/145 , H02M7/06 , H02P6/085 , H02P6/16 , H02P6/26 , H02P6/30 , H02P23/24 , H02P25/022 , H02P25/024 , H02P27/06 , H02P27/16
Abstract: A motor driving circuit for driving a rotor of a motor to rotate with respect to a stator is disclosed. The motor driving circuit includes a controllable bidirectional alternating current (AC) switch, first and second detection circuits, a rotation direction control circuit, and a switch control circuit. The first and second detection circuits detect positions of magnetic poles of the rotor, and output magnetic pole position signals having opposite phases when detecting a same magnetic pole of the rotor. The rotation direction control circuit is configured to selectively output the magnetic pole position signal from the first or the second detection circuits to the switch control circuit according to a rotation direction setting signal of the motor. The switch control circuit is configured to control the controllable bidirectional AC switch to be switched between a switch-on state and a switch-off state to control the motor to rotate in two directions.
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公开(公告)号：US20180130794A1
公开(公告)日：2018-05-10
申请号：US15802985
申请日：2017-11-03
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Ken WONG , Shujuan HUANG , Yunlong JIANG , Shinghin YEUNG
Abstract: An electronic circuit includes an output port, a first AC input port and a second AC input port connecting with an external AC power source, a rectifier circuit and an electrostatic protection circuit. The rectifier circuit includes a first input terminal coupling with the first AC input port, a second input terminal coupling with the second AC input port, a first output terminal and a second output terminal. A voltage of the first output terminal is larger than a voltage of the second output terminal. The electrostatic protection circuit includes a first unidirectional electrostatic protection circuit coupled between the first output terminal of the rectifier circuit and the second output terminal of the rectifier circuit.
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公开(公告)号：US20180209433A1
公开(公告)日：2018-07-26
申请号：US15876446
申请日：2018-01-22
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Shinghin YEUNG , Haibo JIANG , Yunlong JIANG , Guodong LIU , Zhiwang CHEN
CPC classification number: F04D27/004 , F04D25/06 , G05B6/02
Abstract: A motor-driven fan device includes a motor, a processor, a storage with a lookup table stored therein, and a speed detection unit. The processor queries the lookup table or calculates to acquire the target driving voltage and a corresponding target rotating speed of the motor. When the rotating speed difference is not within the range of the preset rotating speed difference, the processor repeatedly adds a gain value to the target driving voltage to acquire a new target driving voltage, acquires the actual rotating speed and the target rotating speed, and determines whether the rotating speed difference is within the range of the preset rotating speed difference. The processor maintains the operation of the motor at the target rotating speed at that point by using the constant speed control method when the absolute value of rotating speed difference is within the range of the preset rotating speed difference.
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公开(公告)号：US20180138842A1
公开(公告)日：2018-05-17
申请号：US15812192
申请日：2017-11-14
Applicant: Johnson Electric S.A.
Inventor： Chiping SUN , Xiuwen YANG , Shinghin YEUNG , Shujuan HUANG , Yunlong JIANG
CPC classification number: H02P6/182 , G01D5/142 , G01D5/145 , H02M7/06 , H02P6/085 , H02P6/16 , H02P6/26 , H02P6/30 , H02P23/24 , H02P25/022 , H02P25/024 , H02P27/06 , H02P27/16
Abstract: A motor and a driving circuit thereof are provided. The motor driving circuit includes a controllable bidirectional AC switch connected with a winding of the motor between two terminals of an AC power supply; and first and second position sensors. The first position sensor and the second position sensor are respectively configured to detect positions of magnetic poles of the rotor. The first position sensor and the second position sensor output magnetic pole position signals having opposite phases when detecting a same magnetic pole of the rotor. At a rest position of the motor, the first position sensor and the second position sensor are respectively arranged with an advance angle with respect to a connection line crossing centers of opposite magnetic poles of the rotor, to make the motor have large starting torque.
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