公开(公告)号：US20220356882A1

公开(公告)日：2022-11-10

申请号：US17871504

申请日：2022-07-22

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan LIN ,  Chung-Hung TANG ,  Cheng-Chieh LIU ,  Chun-Lung CHIU

IPC: F04D19/00 ,  F04D27/00 ,  F04D25/06

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, the signal value of the first driving signal gradually decreases until being equal to the signal value of the second driving signal. Wherein the signal value of the first driving signal non-linearly decreases, the signal value of the second driving signal is an unchanged value. Wherein, the first time period and the second time period are adjusted for a different fan but the sum of the first time period and the second time period is always the same. A fan is also disclosed.

公开(公告)号：US20170141707A1

公开(公告)日：2017-05-18

申请号：US15004991

申请日：2016-01-24

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan LIN ,  Chien-Sheng LIN ,  Chung-Hung TANG ,  Chun-Lung CHIU

IPC: H02P6/00 ,  H02P6/16

CPC classification number: H02P6/16 ,  H02P6/157 ,  H02P6/26

Abstract: A single phase brushless DC motor comprises a Hall effect sensor, a coil assembly and a motor control circuit which generating a driving signal to guide a coil current flowing through the coil assembly. The Hall effect sensor senses the magnetic pole of the rotor to accordingly generate a Hall effect signal. The motor control circuit outputs a current polarity reverse signal according to the voltage at one end of the coil assembly. The time when the current polarity reverse signal is generated corresponds to the polarity reverse time of the coil current. The motor control circuit adjusts the phase of the driving signal according to the polarity reverse time of the Hall effect signal and the time when the current polarity reverse signal is generated to synchronize the phase of the back emf of the single phase brushless DC motor with the phase of the coil current.

公开(公告)号：US20190353170A1

公开(公告)日：2019-11-21

申请号：US16524814

申请日：2019-07-29

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan LIN ,  Chung-Hung TANG ,  Cheng-Chieh LIU ,  Chun-Lung CHIU

IPC: F04D19/00 ,  F04D27/00

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, during the first time period the signal value (driving energy) of the first driving signal gradually decreases until being equal to the signal value of the second driving signal, and the signal value of the first driving signal is initially greater than the signal value of the second driving signal. A fan is also disclosed.

公开(公告)号：US20160123338A1

公开(公告)日：2016-05-05

申请号：US14925246

申请日：2015-10-28

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Fan LIN ,  Chung-Hung TANG ,  Cheng-Chieh LIU ,  Chun-Lung CHIU

IPC: F04D27/00 ,  F04D25/06 ,  F04D19/00

CPC classification number: F04D19/002 ,  F04D27/004

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, during the first time period the signal value (driving energy) of the first driving signal gradually decreases until being equal to the signal value of the second driving signal, and the signal value of the first driving signal is initially greater than the signal value of the second driving signal. A fan is also disclosed.

Abstract translation: 一种用于在包括第一时间段和第二时间段的风扇启动阶段中控制风扇的方法包括以下步骤：在第一时间段期间，连续提供第一驱动信号以驱动风扇; 并且在第二时间段期间，连续地提供第二驱动信号来驱动风扇; 其中，在所述第一时间段期间，所述第一驱动信号的信号值（驱动能量）逐渐减小直到等于所述第二驱动信号的信号值，并且所述第一驱动信号的信号值最初大于所述信号值 的第二驱动信号。 还披露了一个风扇。