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    ELECTRONICALLY COMMUTATED FAN SYSTEM
    1.
    发明申请
    ELECTRONICALLY COMMUTATED FAN SYSTEM 审中-公开

    公开(公告)号：US20180138853A1

    公开(公告)日：2018-05-17

    申请号：US15370345

    申请日：2016-12-06

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Wei-Shuo TSENG ,  Chao-Chin CHUANG ,  Yao-Yang YU ,  Li-Wei HSIAO

    IPC: H02P29/10 ,  H02P6/14 ,  H02P27/06

    CPC classification number: H02P29/10 ,  H02M1/32 ,  H02M1/4225 ,  H02M2001/0022 ,  H02M2001/325 ,  H02M2001/4291 ,  H02P6/085 ,  H02P6/14 ,  H02P6/28 ,  H02P23/26 ,  H02P27/06 ,  H02P2201/07 ,  Y02B70/126 ,  Y02P80/112

    Abstract: An electronically commutated fan system includes an alternating-current-to-direct-current conversion unit, an inverter unit and a control unit. The alternating-current-to-direct-current conversion unit converts an alternating-current input power source into a first direct-current power source. The inverter unit is electrically connected between the alternating-current-to-direct-current conversion unit and a fan. The inverter unit converts the first direct-current power source into an alternating-current output power source and provides the alternating-current output power source to the fan to rotate. The control unit is electrically connected to the alternating-current-to-direct-current conversion unit and the inverter unit. The control unit controls the alternating-current-to-direct-current conversion unit and the inverter unit to adjust a rotational speed of the fan. When the control unit detects a power variation of the alternating-current input power source, the control unit controls the rotational speed of the fan to be maintained within a first error range.

    MOTOR DRIVING SYSTEM AND MOTOR OPERATION RECOVERING METHOD
    2.
    发明申请
    MOTOR DRIVING SYSTEM AND MOTOR OPERATION RECOVERING METHOD 审中-公开

    公开(公告)号：US20180131294A1

    公开(公告)日：2018-05-10

    申请号：US15665843

    申请日：2017-08-01

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Chia-Pin WEI ,  Yu-Wei LEE ,  Wei-Shuo TSENG

    IPC: H02P1/04

    CPC classification number: H02P1/04 ,  H02P23/20 ,  H02P2205/07 ,  Y02P80/116

    Abstract: A motor driving system is configured for driving a motor, which is under an inertial rotation status without being driven, to stably rotate from an original speed to a target speed. The motor driving system includes a sensing unit, a control unit and a driving unit. The sensing unit detects a real rotating status of the motor. The control unit is electrically connected with the sensing unit and provides a gradual acceleration command based on the real rotating status. The driving unit is electrically connected with the control unit and drives the motor to accelerate stably to the target speed according to the gradual acceleration command. In addition, a motor operation recovering method cooperated with the motor driving system is also disclosed.

    ELECTRICALLY COMMUTATED MOTOR DRIVING DEVICE AND CONTROL METHOD THEREOF
    4.
    发明申请
    ELECTRICALLY COMMUTATED MOTOR DRIVING DEVICE AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20190173401A1

    公开(公告)日：2019-06-06

    申请号：US16156315

    申请日：2018-10-10

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Yu-Wei LEE ,  Shang-Wen HSU ,  Wei-Shuo TSENG

    IPC: H02P6/17 ,  H02P6/28 ,  H02P29/024 ,  H02H7/08 ,  G01R19/165

    Abstract: An electronically commutated motor driving module for driving a motor includes a voltage detector, an electronically commutated motor driver, a current detector, a voltage converter, and a controller. The voltage detector detects supply voltage to generate a voltage detection signal. The electronically commutated motor driver is supplied by the supply voltage to generate, according to an electronically commutated signal, an operating current for driving the motor. The current detector detects the operating current to generate a current detection signal. The voltage converter converts the supply voltage into an internal voltage. The controller is supplied by the internal voltage and generates the electronically commutated signal according to a plurality of control parameters. When the controller determines that a specific event has happened according to the control parameters, the controller stops generating the electronically commutated signal and then stores the control parameters.

    ELECTRICALLY COMMUTATED MOTOR DRIVING DEVICE AND CONTROL METHOD THEREOF
    7.
    发明申请
    ELECTRICALLY COMMUTATED MOTOR DRIVING DEVICE AND CONTROL METHOD THEREOF 有权

    公开(公告)号：US20210408947A1

    公开(公告)日：2021-12-30

    申请号：US17474898

    申请日：2021-09-14

    Applicant: Delta Electronics, Inc.

    Inventor： Yu-Wei LEE ,  Shang-Wen HSU ,  Wei-Shuo TSENG

    IPC: H02P6/17 ,  H02P6/28 ,  H02H7/08 ,  G01R19/165 ,  H02P29/024 ,  H02H7/09

    Abstract: An electronically commutated motor driving module for driving a motor includes a voltage detector, an electronically commutated motor driver, a current detector, a voltage converter, and a controller. The voltage detector detects supply voltage to generate a voltage detection signal. The electronically commutated motor driver is supplied by the supply voltage to generate, according to an electronically commutated signal, an operating current for driving the motor. The current detector detects the operating current to generate a current detection signal. The voltage converter converts the supply voltage into an internal voltage. The controller is supplied by the internal voltage and generates the electronically commutated signal according to a plurality of control parameters. When the controller determines that a specific event has happened according to the control parameters, the controller stops generating the electronically commutated signal and then stores the control parameters.

    MOTOR DRIVING CIRCUIT AND CONTROL METHOD THEREOF
    8.
    发明申请
    MOTOR DRIVING CIRCUIT AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20190356262A1

    公开(公告)日：2019-11-21

    申请号：US16409863

    申请日：2019-05-12

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Chih-Hung HSIAO ,  Chia-Pin WEI ,  Yu-Wei LEE ,  Wei-Shuo TSENG

    IPC: H02P27/14 ,  H02P23/00 ,  H02P21/22 ,  H02M7/5387

    Abstract: A motor driving circuit including a first and a second driving signal output circuit is configured to selectively output a six-step square wave driving signal from the first driving signal output circuit, or a space-vector driving signal from the second driving signal output circuit to an inverter to drive a motor according to whether an operating power exceeds a power threshold. The first driving signal output circuit is configured to generate the six-step square wave driving signal. The second driving signal output circuit is configured to generate the space-vector driving signal.

    MOTOR SYSTEM WITH CURRENT SENSORLESS CONTROL AND METHOD OF CONTROLLING THE SAME
    9.
    发明申请
    MOTOR SYSTEM WITH CURRENT SENSORLESS CONTROL AND METHOD OF CONTROLLING THE SAME 审中-公开

    公开(公告)号：US20180287537A1

    公开(公告)日：2018-10-04

    申请号：US15689927

    申请日：2017-08-29

    Applicant: Delta Electronics, Inc.

    Inventor： Chih-Hung HSIAO ,  Yu-Wei LEE ,  Wei-Shuo TSENG

    IPC: H02P21/22 ,  H02P21/18 ,  H02P25/03 ,  H02P27/08

    CPC classification number: H02P21/22 ,  H02P21/18 ,  H02P21/26 ,  H02P25/03 ,  H02P27/085 ,  H02P2207/05

    Abstract: A motor system with a current sensorless control includes a motor, a drive module, and a motor control module. The motor control module controls the motor to rotate through the drive module. The motor control module includes a command generation module, a command conversion module, and an angle generation module. The command generation module generates speed information and transmits the speed information to the angle generation module, and the command generation module generates a voltage command and transmits the voltage command to the command conversion module. The angle generation module generates an electrical angle. The command conversion module converts the voltage command and the electrical angle into a control signal. The motor control module adjusts a phase of a motor input voltage to meet a phase of a motor input current according to the control signal.

    DC ELECTRIC FAN AND DRIVING SYSTEM THEREOF
    10.
    发明申请
    DC ELECTRIC FAN AND DRIVING SYSTEM THEREOF 有权
    直流电风扇及其驱动系统

    公开(公告)号：US20150244294A1

    公开(公告)日：2015-08-27

    申请号：US14698336

    申请日：2015-04-28

    Applicant: Delta Electronics, Inc.

    Inventor： Chia-Pin WEI ,  Wei-Shuo TSENG

    IPC: H02P6/00 ,  F04D25/06 ,  H02P6/16

    CPC classification number: H02P6/28 ,  F04D25/06 ,  H02M3/156 ,  H02M3/33507 ,  H02M3/33553 ,  H02M3/33561 ,  H02M2001/0006 ,  H02M2001/009 ,  H02P6/16

    Abstract: A DC electric fan receiving a first direct current voltage is provided. The DC electric fan includes a motor, a fan blade, a voltage converting device and a motor controller. The motor is directly driven by the first direct current voltage. The fan blade is connected to the motor and rotated by the driving of the motor. The voltage converting device receives and converts the first direct current voltages to a second direct current voltage, wherein the magnitude of the first direct current voltages is larger than the magnitude of the second direct current voltage. The motor controller receives the second direct current voltages to control a rotation direction of the motor, wherein the motor controller is not powered by the first direct current voltage and the first direct current voltage is a fixed direct current voltage.

    Abstract translation: 提供接收第一直流电压的直流电风扇。 直流电风扇包括电动机，风扇叶片，电压转换装置和电动机控制器。 电机由第一直流电压直接驱动。 风扇叶片通过电机的驱动连接到电机并旋转。 电压转换装置接收并将第一直流电压转换为第二直流电压，其中第一直流电压的大小大于第二直流电压的大小。 电动机控制器接收第二直流电压以控制电动机的旋转方向，其中电动机控制器不由第一直流电压供电，并且第一直流电压是固定的直流电压。

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