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1. 发明授权

US07038408B2 Fan motor speed control circuit 有权
标题翻译：风机电机调速电路
公开(公告)号：US07038408B2
公开(公告)日：2006-05-02
申请号：US10861719
申请日：2004-06-04
申请人： Yu-liang Lin , Yueh-lung Huang , Tsung-yu Lei , Ju-wen Hsieh , Wen-shi Huang
发明人： Yu-liang Lin , Yueh-lung Huang , Tsung-yu Lei , Ju-wen Hsieh , Wen-shi Huang
IPC分类号： H02P1/00 , H02P1/22 , H02P1/40 , H02P3/00 , H02P3/20
CPC分类号： H02P6/28 , Y10S388/934
摘要： A fan motor speed control circuit includes a driving circuit, a voltage division circuit, and a speed modulator. The voltage division circuit has a first transistor and a plurality of resistors and is connected between a voltage source and the driving circuit. The speed modulator has a second transistor and a plurality of parallel resistors and is connected between the voltage division circuit and the driving circuit. The current of the fan motor speed control circuit flows through a first path under a first input voltage generated from the voltage source and through a second path under a second input voltage larger than the first one; the parallel resistors are in the second path such that the current value passing through the driving circuit varies according to the resulting resistance value of the parallel resistors.
摘要翻译：风扇电动机速度控制电路包括驱动电路，分压电路和速度调制器。分压电路具有第一晶体管和多个电阻器，并且连接在电压源和驱动电路之间。速度调制器具有第二晶体管和多个并联电阻器，并且连接在分压电路和驱动电路之间。风扇电动机速度控制电路的电流在由电压源产生的第一输入电压之下流过第一路径，并且在大于第一路径的第二输入电压下通过第二路径流动; 并联电阻器位于第二路径中，使得通过驱动电路的电流值根据得到的并联电阻器的电阻值而变化。

2. 发明申请

US20050040778A1 Fan motor speed control circuit 有权
标题翻译：风机电机调速电路
公开(公告)号：US20050040778A1
公开(公告)日：2005-02-24
申请号：US10861719
申请日：2004-06-04
申请人： Yu-liang Lin , Yueh-lung Huang , Tsung-yu Lei , Ju-wen Hsieh , Wen-shi Huang
发明人： Yu-liang Lin , Yueh-lung Huang , Tsung-yu Lei , Ju-wen Hsieh , Wen-shi Huang
IPC分类号： H02P6/08 , H02P6/00 , H02P7/00
CPC分类号： H02P6/28 , Y10S388/934
摘要： A fan motor speed control circuit includes a driving circuit, a voltage division circuit, and a speed modulator. The voltage division circuit has a first transistor and a plurality of resistors and is connected between a voltage source and the driving circuit. The speed modulator has a second transistor and a plurality of parallel resistors and is connected between the voltage division circuit and the driving circuit. The current of the fan motor speed control circuit flows through a first path under a first input voltage generated from the voltage source and through a second path under a second input voltage larger than the first one; the parallel resistors are in the second path such that the current value passing through the driving circuit varies according to the resulting resistance value of the parallel resistors.
摘要翻译：风扇电动机速度控制电路包括驱动电路，分压电路和速度调制器。分压电路具有第一晶体管和多个电阻器，并且连接在电压源和驱动电路之间。速度调制器具有第二晶体管和多个并联电阻器，并且连接在分压电路和驱动电路之间。风扇电动机速度控制电路的电流在由电压源产生的第一输入电压之下流过第一路径，并且在大于第一路径的第二输入电压下通过第二路径流动; 并联电阻器位于第二路径中，使得通过驱动电路的电流值根据得到的并联电阻器的电阻值而变化。

3. 发明申请

US20100150757A1 CIRCUIT BOARD ADAPTED TO FAN AND FAN STRUCTURE 审中-公开
标题翻译：电路板适应风扇和风扇结构
公开(公告)号：US20100150757A1
公开(公告)日：2010-06-17
申请号：US12712151
申请日：2010-02-24
申请人： Yu-liang Lin , Yu-lung Dung , Yueh-lung Huang , Chen-Lin Huang
发明人： Yu-liang Lin , Yu-lung Dung , Yueh-lung Huang , Chen-Lin Huang
IPC分类号： F04B17/00 , H05K7/20
CPC分类号： H05K1/0272 , F04B15/08 , F04D25/0633 , F04D25/068 , F04D29/5813 , F04D29/5853 , H01L2924/0002 , H05K1/0209 , H05K2201/09027 , H05K2201/09063 , H05K2201/09354 , H05K2201/09781 , H05K2201/10689 , H01L2924/00
摘要： A circuit board adapted to a fan comprises a circuit region and a heat-dissipative film. The circuit region is provided on a first surface of the circuit board and comprises at least one heat-generating component thereon. The heat-dissipative film is coated on an edge portion of the first surface and is in contact with the heat-generating component.A plurality of openings through the heat-dissipative film, a protrusion of the circuit board, a cutout in the protrusion to expose the heat-generating component to airflow, etc., have been disclosed and claimed for enhancing the efficiency in heat dissipation. A heat sink may also be provided on a second surface opposite to the first surface of the circuit board. The heat sink is connected to the heat-dissipative film to help dissipate the heat generated by the operation of the fan.
摘要翻译：适于风扇的电路板包括电路区域和散热膜。电路区域设置在电路板的第一表面上，并且在其上包括至少一个发热部件。散热膜涂覆在第一表面的边缘部分上并与发热部件接触。为了提高散热效率，已经公开并要求了通过散热膜的多个开口，电路板的突起，突起中的切口以将发热部件暴露于气流等。也可以在与电路板的第一表面相对的第二表面上设置散热器。散热器连接到散热片，以帮助消散风扇运行产生的热量。

4. 发明申请

US20050002657A1 Fan speed control circuit 有权
标题翻译：风扇转速控制电路
公开(公告)号：US20050002657A1
公开(公告)日：2005-01-06
申请号：US10839818
申请日：2004-05-06
申请人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
发明人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC分类号： H02P7/29
CPC分类号： H02P7/29
摘要： A fan speed control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a phase compensation unit. The PWM signal generating circuit generates a PWM control signal with a sequence of alternating on-time and off-time, and the driving circuit outputs a driving signal according to the PWM control signal to a fan motor. The phase compensation unit is connected to the fan motor for delaying or advancing the PWM control signal by a phase angle to synchronize the acting period of the back electromotive force formed by the magnetic flux variation with the off-time of the PWM control signal.
摘要翻译：风扇速度控制电路包括脉宽调制（PWM）信号发生电路，驱动电路和相位补偿单元。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的PWM控制信号，并且驱动电路根据PWM控制信号向风扇电动机输出驱动信号。相位补偿单元连接到风扇电动机，用于使PWM控制信号延迟或前进相位角，以使由磁通量变化形成的反电动势的动作周期与PWM控制信号的关闭时间同步。

5. 发明授权

US07358791B2 Discharge protection circuit 有权
标题翻译：放电保护电路
公开(公告)号：US07358791B2
公开(公告)日：2008-04-15
申请号：US10859212
申请日：2004-06-03
申请人： Todd Wu , Yueh-lung Huang , Yi-chieh Cho , Tung-hung Hsiao
发明人： Todd Wu , Yueh-lung Huang , Yi-chieh Cho , Tung-hung Hsiao
IPC分类号： H03K17/56
CPC分类号： H02M1/32
摘要： A discharge protection circuit for discharging a full-bridge circuit in a brushless DC fan, wherein the brushless DC fan comprises a control circuit outputting at least one first control signal and at least one second control signal to the full-bridge circuit. The second control signal is a reverse signal of the first control signal; and the full-bridge circuit comprises a first impedance, a second impedance and a switch. The switch has a first terminal, a second terminal, and a third terminal that is grounded. The first terminal and the first impedance are in series connection for receiving the first control signal to control the status of the switch. The second terminal and the second impedance are in series connection and are connected to the input terminal of the second control signal of the full-bridge circuit, and the full-bridge circuit is discharged according to the status of the switch.
摘要翻译：一种用于对无刷直流风扇中的全桥电路进行放电的放电保护电路，其中所述无刷DC风扇包括将至少一个第一控制信号和至少一个第二控制信号输出到所述全桥电路的控制电路。第二控制信号是第一控制信号的反向信号; 并且全桥电路包括第一阻抗，第二阻抗和开关。开关具有第一端子，第二端子和接地的第三端子。第一端子和第一阻抗串联连接，用于接收第一控制信号以控制开关的状态。第二端子和第二阻抗串联连接并连接到全桥电路的第二控制信号的输入端子，并且全桥电路根据开关的状态放电。

6. 发明授权

US07567749B2 Motor control circuit 有权
标题翻译：电机控制电路
公开(公告)号：US07567749B2
公开(公告)日：2009-07-28
申请号：US11703183
申请日：2007-02-07
申请人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
发明人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC分类号： H02P7/29
CPC分类号： H02P29/50
摘要： A motor control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a waveform-shaping circuit connected between the PWM signal generating circuit and the driving circuit. The PWM signal generating circuit generates a square wave with a sequence of alternating on-time and off-time. The waveform-shaping circuit adjusts the rise-time and the fall-time of the square wave to be both within a range of 5% to 15% of the square wave period, and the driving circuit outputs a driving signal to a fan motor according to the adjusted square wave.
摘要翻译：电动机控制电路包括连接在PWM信号发生电路和驱动电路之间的脉宽调制（PWM）信号发生电路，驱动电路和波形整形电路。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的方波。波形整形电路将方波的上升时间和下降时间均调整在方波周期的5％〜15％的范围内，驱动电路根据到调整后的方波。

7. 发明申请

US20050146820A1 Discharge protection circuit 有权
标题翻译：放电保护电路
公开(公告)号：US20050146820A1
公开(公告)日：2005-07-07
申请号：US10859212
申请日：2004-06-03
申请人： Todd Wu , Yueh-lung Huang , Yi-chieh Cho , Tung-hung Hsiao
发明人： Todd Wu , Yueh-lung Huang , Yi-chieh Cho , Tung-hung Hsiao
IPC分类号： H02H7/00 , H02H9/00 , H02M1/32 , H02P6/12
CPC分类号： H02M1/32
摘要： A discharge protection circuit for discharging a full-bridge circuit in a brushless DC fan, wherein the brushless DC fan comprises a control circuit outputting at least one first control signal and at least one second control signal to the full-bridge circuit. The second control signal is a reverse signal of the first control signal; and the full-bridge circuit comprises a first impedance, a second impedance and a switch. The switch has a first terminal, a second terminal, and a third terminal that is grounded. The first terminal and the first impedance are in series connection for receiving the first control signal to control the status of the switch. The second terminal and the second impedance are in series connection and are connected to the input terminal of the second control signal of the full-bridge circuit, and the full-bridge circuit is discharged according to the status of the switch.
摘要翻译：一种用于对无刷直流风扇中的全桥电路进行放电的放电保护电路，其中所述无刷DC风扇包括将至少一个第一控制信号和至少一个第二控制信号输出到所述全桥电路的控制电路。第二控制信号是第一控制信号的反向信号; 并且全桥电路包括第一阻抗，第二阻抗和开关。开关具有第一端子，第二端子和接地的第三端子。第一端子和第一阻抗串联连接，用于接收第一控制信号以控制开关的状态。第二端子和第二阻抗串联连接并连接到全桥电路的第二控制信号的输入端子，并且全桥电路根据开关的状态放电。

8. 发明授权

US07242857B2 Motor control circuit 有权
标题翻译：电机控制电路
公开(公告)号：US07242857B2
公开(公告)日：2007-07-10
申请号：US10895902
申请日：2004-07-22
申请人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
发明人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC分类号： H02P5/28 , H02P1/18 , H02P7/29
CPC分类号： H02P29/50
摘要： A motor control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a waveform-shaping circuit connected between the PWM signal generating circuit and the driving circuit. The PWM signal generating circuit generates a square wave with a sequence of alternating on-time and off-time. The waveform-shaping circuit adjusts the rise-time and the fall-time of the square wave to be both within a range of 5% to 15% of the square wave period, and the driving circuit outputs a driving signal to a fan motor according to the adjusted square wave.
摘要翻译：电动机控制电路包括连接在PWM信号发生电路和驱动电路之间的脉宽调制（PWM）信号发生电路，驱动电路和波形整形电路。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的方波。波形整形电路将方波的上升时间和下降时间均调整在方波周期的5％〜15％的范围内，驱动电路根据到调整后的方波。

9. 发明授权

US07218846B2 Fan speed control circuit 有权
标题翻译：风扇转速控制电路
公开(公告)号：US07218846B2
公开(公告)日：2007-05-15
申请号：US10839818
申请日：2004-05-06
申请人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
发明人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC分类号： H02P7/29
CPC分类号： H02P7/29
摘要： A fan speed control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a phase compensation unit. The PWM signal generating circuit generates a PWM control signal with a sequence of alternating on-time and off-time, and the driving circuit outputs a driving signal according to the PWM control signal to a fan motor. The phase compensation unit is connected to the fan motor for delaying or advancing the PWM control signal by a phase angle to synchronize the acting period of the back electromotive force formed by the magnetic flux variation with the off-time of the PWM control signal.
摘要翻译：风扇速度控制电路包括脉宽调制（PWM）信号发生电路，驱动电路和相位补偿单元。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的PWM控制信号，并且驱动电路根据PWM控制信号向风扇电动机输出驱动信号。相位补偿单元连接到风扇电动机，用于使PWM控制信号延迟或前进相位角，以使由磁通量变化形成的反电动势的动作周期与PWM控制信号的关闭时间同步。

10. 发明申请

US20070160354A1 Motor control circuit 有权
公开(公告)号：US20070160354A1
公开(公告)日：2007-07-12
申请号：US11703183
申请日：2007-02-07
申请人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
发明人： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC分类号： H02P7/29
CPC分类号： H02P29/50
摘要： A motor control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a waveform-shaping circuit connected between the PWM signal generating circuit and the driving circuit. The PWM signal generating circuit generates a square wave with a sequence of alternating on-time and off-time. The waveform-shaping circuit adjusts the rise-time and the fall-time of the square wave to be both within a range of 5% to 15% of the square wave period, and the driving circuit outputs a driving signal to a fan motor according to the adjusted square wave.

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