公开(公告)号：US20140021891A1

公开(公告)日：2014-01-23

申请号：US13708702

申请日：2012-12-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Liang LIN ,  Kun-Fu CHUANG ,  Cheng-Chieh LIU

IPC: H02P6/16

CPC classification number: H02P6/16 ,  H02P6/10 ,  H02P6/26

Abstract: A motor includes a rotor, a sensor unit, an offset unit, a rectification unit and a modulating unit. The sensor unit outputs a first signal in accordance with a magnetic field variation of the rotor. The offset unit is coupled to the sensor unit, and outputs a second signal in accordance with the first signal. The rectification unit is coupled to the offset unit, and outputs a third signal in accordance with the second signal. The modulating unit is coupled to the rectification unit, and outputs a control signal in accordance with a result by comparing the third signal with a periodic signal. The modulating unit controls a reverse rotation of the rotor smoothly in accordance with the control signal. A control method of the motor is also disclosed.

Abstract translation: 马达包括转子，传感器单元，偏移单元，整流单元和调制单元。 传感器单元根据转子的磁场变化输出第一信号。 偏移单元耦合到传感器单元，并且根据第一信号输出第二信号。 整流单元耦合到偏移单元，并根据第二信号输出第三信号。 调制单元耦合到整流单元，并且通过将第三信号与周期信号进行比较，根据结果输出控制信号。 调节单元根据控制信号平滑地控制转子的反向旋转。 还公开了电动机的控制方法。

公开(公告)号：US20160087559A1

公开(公告)日：2016-03-24

申请号：US14831461

申请日：2015-08-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Liang LIN ,  Chung-Hung TANG ,  Cheng-Chieh LIU ,  Chien-Sheng LIN ,  Chun-Lung CHIU

IPC: H02P6/00 ,  H02P6/20 ,  G01D5/14 ,  H02P6/18

CPC classification number: H02P6/26 ,  G01D5/145 ,  H02P6/182 ,  H02P6/20

Abstract: A motor drive circuit including a back electromotive force detecting module and a processing module is disclosed herein. The back electromotive force detecting module is electrically connected to a single phase DC motor and is configured to detect a back electromotive force of the single phase DC motor and to output a detecting signal correspondingly. The processing module is electrically connected to the back electromotive force detecting module and the single phase DC motor. The processing module is configured to determine the rotation direction of the single phase DC motor according to the detecting signal and a hall signal outputted by a hall element located in the single phase DC motor, and is configured to control the single phase DC motor.

Abstract translation: 本文公开了一种包括反电动势检测模块和处理模块的电动机驱动电路。 反电动势检测模块电连接到单相DC电动机，并且被配置为检测单相DC电动机的反电动势并相应地输出检测信号。 处理模块电连接到反电动势检测模块和单相直流电动机。 处理模块被配置为根据检测信号和由位于单相DC电动机中的霍尔元件输出的霍尔信号来确定单相DC电动机的旋转方向，并且被配置为控制单相DC电动机。