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公开(公告)号：US07701158B2
公开(公告)日：2010-04-20
申请号：US11638508
申请日：2006-12-14
IPC分类号： H02P7/00
CPC分类号： F04D27/001 , F04D25/16 , F04D27/008
摘要： A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.
摘要翻译： 风扇系统包括驱动装置，速度检测装置和逻辑装置。 驱动装置产生速度检测信号和预定报警信号。 与驱动装置电连接的速度检测装置接收速度检测信号，当速度检测信号低于基准信号时，生成低速信号。 逻辑装置分别与驱动装置和速度检测装置电连接，并且当逻辑装置接收到预定的报警信号或低速信号时产生报警信号。
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公开(公告)号：US20070145920A1
公开(公告)日：2007-06-28
申请号：US11638508
申请日：2006-12-14
IPC分类号： H02P7/00
CPC分类号： F04D27/001 , F04D25/16 , F04D27/008
摘要： A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.
摘要翻译： 风扇系统包括驱动装置，速度检测装置和逻辑装置。 驱动装置产生速度检测信号和预定报警信号。 与驱动装置电连接的速度检测装置接收速度检测信号，当速度检测信号低于基准信号时，生成低速信号。 逻辑装置分别与驱动装置和速度检测装置电连接，并且当逻辑装置接收到预定的报警信号或低速信号时产生报警信号。
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公开(公告)号：US07164249B2
公开(公告)日：2007-01-16
申请号：US11355100
申请日：2006-02-16
IPC分类号： H02P3/00
CPC分类号： F04D27/004
摘要： A fan control device receives a reference revolution signal to control the rotation speed of a fan. The fan control device includes a reference signal generating module, a revolution modifying module and a fan driving module. The reference signal generating module generates a first reference signal and a second reference signal. The revolution modifying module receives the first reference signal and the second reference signal, and generates a target revolution signal according to the reference revolution signal and the first and second reference signals. The fan driving module receives the target revolution signal and generates a driving signal to drive the fan according to the target revolution signal.
摘要翻译： 风扇控制装置接收参考转动信号以控制风扇的转速。 风扇控制装置包括参考信号发生模块，转动修正模块和风扇驱动模块。 参考信号产生模块产生第一参考信号和第二参考信号。 旋转修改模块接收第一参考信号和第二参考信号，并且根据参考转动信号和第一和第二参考信号产生目标转速信号。 风扇驱动模块接收目标转速信号，并根据目标转速信号产生驱动风扇的驱动信号。
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公开(公告)号：US20060263072A1
公开(公告)日：2006-11-23
申请号：US11355100
申请日：2006-02-16
IPC分类号： H02P7/18
CPC分类号： F04D27/004
摘要： A fan control device receives a reference revolution signal to control the rotation speed of a fan. The fan control device includes a reference signal generating module, a revolution modifying module and a fan driving module. The reference signal generating module generates a first reference signal and a second reference signal. The revolution modifying module receives the first reference signal and the second reference signal, and generates a target revolution signal according to the reference revolution signal and the first and second reference signals. The fan driving module receives the target revolution signal and generates a driving signal to drive the fan according to the target revolution signal.
摘要翻译： 风扇控制装置接收参考转动信号以控制风扇的转速。 风扇控制装置包括参考信号发生模块，转动修正模块和风扇驱动模块。 参考信号产生模块产生第一参考信号和第二参考信号。 旋转修改模块接收第一参考信号和第二参考信号，并且根据参考转动信号和第一和第二参考信号产生目标转速信号。 风扇驱动模块接收目标转速信号，并根据目标转速信号产生驱动风扇的驱动信号。
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公开(公告)号：US20060056823A1
公开(公告)日：2006-03-16
申请号：US11270494
申请日：2005-11-10
申请人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
发明人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
IPC分类号： H02P7/29
CPC分类号： H02P6/15
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. The present invention further provides a bi-power motor driving system including a motor rotating by receiving a first power from a first power generator, and a driving circuit for driving the motor according to a second power from a second power generator.
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。 本发明还提供一种双功率电动机驱动系统，其包括通过从第一发电机接收第一功率而旋转的电动机和用于根据来自第二发电机的第二功率驱动电动机的驱动电路。
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公开(公告)号：US07694157B2
公开(公告)日：2010-04-06
申请号：US10922851
申请日：2004-08-23
申请人： Chia-Feng Wu , Cheng-Chieh Liu , Yueh Lung Huang , Yi-Chieh Cho
发明人： Chia-Feng Wu , Cheng-Chieh Liu , Yueh Lung Huang , Yi-Chieh Cho
CPC分类号： G06F1/20
摘要： A heat dissipation device for cooling an electronic device. The heat dissipation device comprises a fan, a controller connected to the fan and coupled to the electronic device and a sensor connected to the controller and sending a first signal to the controller by detecting a temperature variation in the electronic device. The electronic device sends a second signal to the controller, the controller changes the speed of the fan according to either the first signal or the second signal.
摘要翻译： 一种用于冷却电子设备的散热装置。 散热装置包括风扇，连接到风扇并耦合到电子设备的控制器和连接到控制器的传感器，并通过检测电子设备中的温度变化向控制器发送第一信号。 电子设备向控制器发送第二信号，控制器根据第一信号或第二信号改变风扇的速度。
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公开(公告)号：US07545112B2
公开(公告)日：2009-06-09
申请号：US11710532
申请日：2007-02-26
申请人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
发明人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
CPC分类号： H02P7/285
摘要： A fan motor control device comprises a clock signal generator and a drive unit. The clock signal generator generates a low-frequency clock signal. A frequency of low-frequency clock signal is less than 23 KHz. The drive unit converts the low-frequency clock signal to a high-frequency drive signal and outputs the high-frequency drive signal to drive the fan motor. A frequency of the high-frequency drive signal is higher than 23 KHz.
摘要翻译： 风扇马达控制装置包括时钟信号发生器和驱动单元。 时钟信号发生器产生低频时钟信号。 低频时钟信号的频率小于23KHz。 驱动单元将低频时钟信号转换为高频驱动信号，并输出高频驱动信号来驱动风扇电机。 高频驱动信号的频率高于23KHz。
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公开(公告)号：US20070274694A1
公开(公告)日：2007-11-29
申请号：US11710532
申请日：2007-02-26
申请人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
发明人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
CPC分类号： H02P7/285
摘要： A fan motor control device comprises a clock signal generator and a drive unit. The clock signal generator generates a low-frequency clock signal. A frequency of low-frequency clock signal is less than 23 KHz. The drive unit converts the low-frequency clock signal to a high-frequency drive signal and outputs the high-frequency drive signal to drive the fan motor. A frequency of the high-frequency drive signal is higher than 23 KHz.
摘要翻译： 风扇马达控制装置包括时钟信号发生器和驱动单元。 时钟信号发生器产生低频时钟信号。 低频时钟信号的频率小于23KHz。 驱动单元将低频时钟信号转换为高频驱动信号，并输出高频驱动信号来驱动风扇电机。 高频驱动信号的频率高于23KHz。
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公开(公告)号：US07233121B2
公开(公告)日：2007-06-19
申请号：US11270494
申请日：2005-11-10
申请人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
发明人： Chia-Feng Wu , Yueh-Lung Huang , Ming-Shi Tsai , Wen-Shi Huang
IPC分类号： H02P25/12
CPC分类号： H02P6/15
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. The present invention further provides a bi-power motor driving system including a motor rotating by receiving a first power from a first power generator, and a driving circuit for driving the motor according to a second power from a second power generator.
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。 本发明还提供一种双功率电动机驱动系统，其包括通过从第一发电机接收第一功率而旋转的电动机和用于根据来自第二发电机的第二功率驱动电动机的驱动电路。
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公开(公告)号：US07781998B2
公开(公告)日：2010-08-24
申请号：US11790851
申请日：2007-04-27
申请人： Ming-Lung Liu , Yi-Chieh Cho , Chia-Feng Wu , Yueh-Lung Huang
发明人： Ming-Lung Liu , Yi-Chieh Cho , Chia-Feng Wu , Yueh-Lung Huang
IPC分类号： H02P6/14
CPC分类号： F04D29/582 , F04D27/008 , Y02P80/116
摘要： A fan system comprising a first switch, a second switch, a coil, and a drive device. The drive device comprises a third switch and a fourth switch. The third switch, the fourth switch, the first switch, the second switch and the coil form a bridge connection.
摘要翻译： 一种风扇系统，包括第一开关，第二开关，线圈和驱动装置。 驱动装置包括第三开关和第四开关。 第三开关，第四开关，第一开关，第二开关和线圈形成桥连接。
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