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    Fan motor braking apparatus and the control method thereof
    1.
    发明授权
    Fan motor braking apparatus and the control method thereof 有权

    公开(公告)号：US10103676B2

    公开(公告)日：2018-10-16

    申请号：US15335804

    申请日：2016-10-27

    Applicant: Delta Electronics, Inc.

    Inventor： Wei-Shuo Tseng ,  Chia-Feng Wu ,  Yi-Chieh Cho ,  Yun-Hua Chao ,  Po-Tsun Chen

    IPC: H02P3/12 ,  H02P27/08 ,  F04D25/06 ,  F04D27/00 ,  H02P6/08 ,  H02P6/16 ,  H02P6/24

    Abstract: A fan motor braking apparatus includes a fan motor, a conversion circuit and a motor driver circuit. The conversion circuit is respectively and electrically connected to the fan motor and the motor driver circuit. The conversion circuit includes bridge structures. After the fan motor starts operating, the motor driver circuit receives at least one fan status signal and determines whether the fan motor braking apparatus enters a braking status or not according to the at least one fan status signal. When the fan motor braking apparatus enters the braking status, the motor driver circuit outputs a braking control signal to the conversion circuit so that the bridge structures of the conversion circuit generate a brake effect on fan motor, wherein the at least one fan status signal includes an external speed-control signal and a transition voltage signal of the fan motor.

    Fan motor braking apparatus and method of controlling the same
    3.
    发明授权
    Fan motor braking apparatus and method of controlling the same 有权
    风机马达制动装置及其控制方法

    公开(公告)号：US09525367B2

    公开(公告)日：2016-12-20

    申请号：US14314467

    申请日：2014-06-25

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Wei-Shuo Tseug ,  Chia-Feng Wu ,  Ming-Lung Liu ,  Yu-Jen Liang

    IPC: H02K7/10 ,  H02P3/12 ,  H02P3/22 ,  H02P6/20 ,  H02P6/22 ,  H02P6/08

    CPC classification number: H02P3/22 ,  H02P6/08 ,  H02P6/15 ,  H02P6/20 ,  H02P6/22

    Abstract: A fan motor braking apparatus and a method of controlling the same provide a braking protection before the fan motor revolves. The fan motor braking apparatus includes a conversion circuit, a braking enable circuit, a braking release circuit, and a fan motor startup circuit. The conversion circuit has a plurality of power switch elements electrically connected to the fan motor. The braking enable circuit is connected to the conversion circuit and the braking release circuit is connected to the braking enable circuit. The fan motor startup circuit receives an external DC voltage. The braking enable circuit generates a braking control signal to turn on the power switch elements when the braking enable circuit receives the external DC voltage, thus braking the fan motor.

    Abstract translation: 风扇马达制动装置及其控制方法在风扇电动机旋转之前提供制动保护。 风扇马达制动装置包括转换电路，制动使能电路，制动解除电路和风扇马达启动电路。 转换电路具有与风扇电动机电连接的多个电源开关元件。 制动使能电路连接到转换电路，并且制动释放电路连接到制动使能电路。 风扇电机启动电路接收外部直流电压。 当制动使能电路接收到外部直流电压时，制动使能电路产生制动控制信号以接通电源开关元件，从而制动风扇电动机。

    Method of adaptively controlling brushless DC motor
    4.
    发明授权
    Method of adaptively controlling brushless DC motor 有权

    公开(公告)号：US12149198B2

    公开(公告)日：2024-11-19

    申请号：US17893778

    申请日：2022-08-23

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Chia-Feng Wu ,  Chien-Sheng Lin ,  Jou-Sheng Wang

    IPC: H02P6/14 ,  G01M13/04 ,  G08B21/18 ,  H02P29/024

    Abstract: A method of adaptively controlling a brushless DC motor includes steps of: controlling the brushless DC motor rotating at a first speed according to an operation curve, accumulating a running time of the brushless DC motor, estimating a remaining used time of a bearing of the brushless DC motor according to the accumulated running time, executing an alarm operation when the remaining used time is less than a predetermined time, and decreasing the speed of the brushless DC motor to run at a second speed to prolong the used time of the bearing.

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