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公开(公告)号：US09846461B2
公开(公告)日：2017-12-19
申请号：US14175368
申请日：2014-02-07
发明人： Chung-Hung Tang , Shih-Chou Chen , Chun-Lung Chiu , Chao-Wen Lu , Chun-Nan Lin , Fu-Mei Hsu
CPC分类号： G06F1/203 , H05K7/20172
摘要： A heat dissipating apparatus includes a frame, an elastic body, a magnetic member and a coil. The frame has an opening. The elastic body is disposed on the frame, and the frame and the elastic body define a space. The magnetic member is located corresponding to the space and disposed at one side of the elastic body. The coil is located corresponding to the periphery of the space and disposed on the frame. An electronic device with the heat dissipating apparatus is also disclosed.
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公开(公告)号：US09344017B2
公开(公告)日：2016-05-17
申请号：US14501659
申请日：2014-09-30
发明人： Chung-Hung Tang , Chien-Sheng Lin , Chin-Fa Chiu , Chun-Lung Chiu
CPC分类号： H02P6/26 , H02P6/085 , H02P25/188
摘要： A driving circuit drives a motor containing a first coil and a second coil. The driving circuit includes a switching unit, an operation unit and a control unit. The switching unit receives a switching signal from the control unit for driving the motor. The control unit detects the rotation speed of the motor. When the rotation speed of the motor is greater than a predetermined rotation speed, the control unit outputs a first operation signal to the operation unit to couple the first terminals of the first and second coils and couple the second terminals of the first and second coils. When the rotation speed of the motor is less than or equal to the predetermined rotational speed, the control unit outputs a second operation signal to the operation unit to couple the second terminal of the first coil to the first terminal of the second coil.
摘要翻译： 驱动电路驱动包含第一线圈和第二线圈的马达。 驱动电路包括切换单元，操作单元和控制单元。 切换单元从控制单元接收用于驱动马达的切换信号。 控制单元检测电动机的转速。 当电动机的转速大于预定转速时，控制单元向操作单元输出第一操作信号，以耦合第一和第二线圈的第一端子并耦合第一和第二线圈的第二端子。 当电机的转速小于或等于预定转速时，控制单元向操作单元输出第二操作信号，以将第一线圈的第二端子耦合到第二线圈的第一端子。
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公开(公告)号：US20230223802A1
公开(公告)日：2023-07-13
申请号：US17733483
申请日：2022-04-29
发明人： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC分类号： H02K1/2746 , H02K11/33 , H02K29/03 , H02K11/215
CPC分类号： H02K1/2746 , H02K11/33 , H02K29/03 , H02K11/215 , H02K2213/03
摘要： A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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4.发明授权公开(公告)号：US11473584B2
公开(公告)日：2022-10-18
申请号：US16524814
申请日：2019-07-29
发明人： Yi-Fan Lin , Chung-Hung Tang , Cheng-Chieh Liu , Chun-Lung Chiu
IPC分类号： F04D19/00 , F04D27/00 , F04D25/06 , F04D17/16 , F04D29/66 , F04B49/02 , F04B49/20 , F04B49/06
摘要： 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.
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5.发明授权公开(公告)号：US11933309B2
公开(公告)日：2024-03-19
申请号：US17871504
申请日：2022-07-22
发明人： Yi-Fan Lin , Chung-Hung Tang , Cheng-Chieh Liu , Chun-Lung Chiu
IPC分类号： F04D19/00 , F04D25/06 , F04D27/00 , F04B49/02 , F04B49/06 , F04B49/20 , F04D17/16 , F04D29/66
CPC分类号： F04D19/002 , F04D25/06 , F04D27/004 , F04B49/02 , F04B49/06 , F04B49/065 , F04B49/20 , F04D17/16 , F04D29/661 , F05D2260/85
摘要： 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.
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公开(公告)号：US09780705B2
公开(公告)日：2017-10-03
申请号：US15004991
申请日：2016-01-24
发明人： Yi-Fan Lin , Chien-Sheng Lin , Chung-Hung Tang , Chun-Lung Chiu
摘要： 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.
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公开(公告)号：US20240283309A1
公开(公告)日：2024-08-22
申请号：US18653067
申请日：2024-05-02
发明人： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC分类号： H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03
CPC分类号： H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03 , H02K2213/03
摘要： A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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公开(公告)号：US12009697B2
公开(公告)日：2024-06-11
申请号：US17733483
申请日：2022-04-29
发明人： Yi-Fan Lin , Li-Jiang Lu , Chin-Chun Lai , Chung-Hung Tang , Chun-Lung Chiu
IPC分类号： H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03
CPC分类号： H02K1/2746 , H02K11/215 , H02K11/33 , H02K29/03 , H02K2213/03
摘要： A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.
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公开(公告)号：US10128034B2
公开(公告)日：2018-11-13
申请号：US14839587
申请日：2015-08-28
发明人： Chao-Wen Lu , Chun-Chih Wang , Ding-Wei Chiu , Chung-Hung Tang
IPC分类号： H05K7/20 , H01F27/08 , H01L23/427
摘要： A heat dissipation device is applied to an electronic device and comprises a heat conduction plate, at least an induction coil and a first heat dissipation plate. The heat conduction plate receives the heat provided by a heat source and includes a first contact element disposed on a first surface of the heat conduction plate. The induction coil is disposed at the heat conduction plate. The first heat dissipation plate is disposed at the first contact element of the heat conduction plate. The first heat dissipation plate and the heat conduction plate form a gap. The first heat dissipation plate includes at least a first magnetic element disposed opposite the induction coil.
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公开(公告)号：US09973118B2
公开(公告)日：2018-05-15
申请号：US14831461
申请日：2015-08-20
摘要： 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.
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