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19 条记录 (耗时 0.015 秒)

    Drive circuit for a permanent magnet motor
    7.
    发明授权
    Drive circuit for a permanent magnet motor 有权

    公开(公告)号：US10211762B2

    公开(公告)日：2019-02-19

    申请号：US14822292

    申请日：2015-08-10

    申请人： Johnson Electric S.A.

    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

    IPC分类号： H02K29/03 ,  H02P1/46 ,  H02P1/22 ,  H02P7/06 ,  H02P7/295 ,  H02P6/22

    摘要： A drive circuit for an electric motor having a wound stator and a permanent magnet rotor, includes a controllable bidirectional AC switch connected in series with a stator winding between two terminals for connecting to an AC power supply. First and second position sensors detect the position of magnetic poles of the rotor. A voltage regulating circuit is connected between the two terminals and the controllable bidirectional AC switch and configured to supply power to the first sensor during the positive cycle and to the second position sensor during the negative cycle of the AC power supply such that the controllable bidirectional AC switch is switched between a conductive state and a non-conductive state in a preset manner, thus enabling the stator to rotate the rotor in only one predetermined direction during start-up.

    Motor driving circuit and motor component
    8.
    发明授权
    Motor driving circuit and motor component 有权

    公开(公告)号：US10205412B2

    公开(公告)日：2019-02-12

    申请号：US15231115

    申请日：2016-08-08

    申请人： Johnson Electric S.A.

    发明人： Chi Ping Sun ,  Shing Hin Yeung ,  Fei Xin ,  Xiu Wen Yang ,  Shu Juan Huang ,  Yun Long Jiang ,  Yue Li ,  Bao Ting Liu ,  En Hui Wang ,  Li Sheng Liu ,  Yan Yun Cui

    IPC分类号： H02P27/16 ,  H02K3/28 ,  H02P25/10 ,  H05B39/08 ,  H02P6/16 ,  H02K1/27 ,  H02K11/215 ,  H02K21/00 ,  H02P6/20 ,  H02P7/295 ,  H02P6/30 ,  H02P7/03

    摘要： A motor driving circuit and a motor component are provided. The motor driving circuit includes a bidirectional alternating current switch connected in series with a motor across two terminals of an external alternating current power supply, where the bidirectional alternating current switch is connected between a first node and a second node; a rectifying circuit; a magnetic sensor, configured to detect a magnetic field of a rotor and output a corresponding magnetic inductive signal; a first voltage drop circuit and a second voltage drop circuit connected in series between the first input terminal of the rectifying circuit and the first node, where there is a third node between the first voltage drop circuit and the second voltage drop circuit, and the first voltage drop circuit is connected between the first node and the third node; a switch circuit connected between the third node and a control terminal of the bidirectional alternating current switch, where the switch circuit includes a first terminal, a second terminal, a control terminal and a switch arranged between the first terminal and the second terminal; and a switch control circuit connected between the control terminal of the switch circuit and an output terminal of the magnetic sensor.