-
公开(公告)号：US07567749B2
公开(公告)日：2009-07-28
申请号：US11703183
申请日：2007-02-07
Applicant: Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
Inventor： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC: H02P7/29
CPC classification number: H02P29/50
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US07425809B2
公开(公告)日：2008-09-16
申请号：US11370851
申请日：2006-03-09
Applicant: Po-Hui Shen , Cheng-Chieh Liu , Ching-Sen Hsieh , Yueh-Lung Huang
Inventor： Po-Hui Shen , Cheng-Chieh Liu , Ching-Sen Hsieh , Yueh-Lung Huang
IPC: G05B5/00
CPC classification number: G06F1/206 , H05K7/20209
Abstract: A heat dissipation device comprises a fan motor, a drive circuit, and a reset current reduction circuit. When the fan motor is locked, an input terminal of the reset current reduction circuit receives an alarm signal, and an output terminal thereof outputs a voltage signal, which is larger than a reference voltage generated as the fan motor is at a low rotation rate, so as to decrease a reset current of the fan motor.
Abstract translation: 散热装置包括风扇电动机，驱动电路和复位电流降低电路。 当风扇电动机被锁定时，复位电流降低电路的输入端接收报警信号，其输出端输出大于风扇电动机处于低转速时产生的参考电压的电压信号， 从而降低风扇马达的复位电流。
-
公开(公告)号：US20060263072A1
公开(公告)日：2006-11-23
申请号：US11355100
申请日：2006-02-16
Applicant: Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Tsung-Jung Hsieh , Yueh-Lung Huang
Inventor： Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Tsung-Jung Hsieh , Yueh-Lung Huang
IPC: H02P7/18
CPC classification number: F04D27/004
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US09382915B2
公开(公告)日：2016-07-05
申请号：US13185729
申请日：2011-07-19
Applicant: Chia-Ming Hsu , Chien-Ming Lee , Yueh-Lung Huang , Jung-Yuan Chen , Ching-Sen Hsieh , Chia-Lin Lee , Yen-Hung Chen , Jian-Cun Lin
Inventor： Chia-Ming Hsu , Chien-Ming Lee , Yueh-Lung Huang , Jung-Yuan Chen , Ching-Sen Hsieh , Chia-Lin Lee , Yen-Hung Chen , Jian-Cun Lin
CPC classification number: F04D27/004 , F04B49/065 , F04D19/026
Abstract: A control method of a fan rotation speed, which controls the operation of a fan set including fans connected in series, is disclosed. The control method includes the steps of acquiring a control factor; judging whether the control factor is less than a first threshold value; executing a first control procedure when the control factor is less than the first threshold value; judging whether the control factor is greater than a second threshold value when the control factor is greater than the first threshold; executing a second control procedure when the control factor is greater than the second threshold value; and executing a third control procedure when the control factor is less than the second threshold value.
Abstract translation: 公开了一种风扇转速的控制方法，其控制包括串联连接的风扇的风扇组的操作。 控制方法包括获取控制因子的步骤; 判断所述控制因子是否小于第一阈值; 当所述控制因子小于所述第一阈值时，执行第一控制程序; 当所述控制因子大于所述第一阈值时，判断所述控制因子是否大于第二阈值; 当所述控制因子大于所述第二阈值时执行第二控制过程; 以及当所述控制因子小于所述第二阈值时执行第三控制过程。
-
公开(公告)号：US07701158B2
公开(公告)日：2010-04-20
申请号：US11638508
申请日：2006-12-14
Applicant: Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Yueh-Lung Huang , Wen-Shi Huang
Inventor： Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Yueh-Lung Huang , Wen-Shi Huang
IPC: H02P7/00
CPC classification number: F04D27/001 , F04D25/16 , F04D27/008
Abstract: 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.
Abstract translation: 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。
-
Patent Agency Ranking
公开(公告)号：US07242857B2
公开(公告)日：2007-07-10
申请号：US10895902
申请日：2004-07-22
Applicant: Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
Inventor： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
CPC classification number: H02P29/50
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US07218846B2
公开(公告)日：2007-05-15
申请号：US10839818
申请日：2004-05-06
Applicant: Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
Inventor： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC: H02P7/29
CPC classification number: H02P7/29
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US07164249B2
公开(公告)日：2007-01-16
申请号：US11355100
申请日：2006-02-16
Applicant: Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Tsung-Jung Hsieh , Yueh-Lung Huang
Inventor： Chia-Feng Wu , Cheng-Chieh Liu , Ching-Sen Hsieh , Tsung-Jung Hsieh , Yueh-Lung Huang
IPC: H02P3/00
CPC classification number: F04D27/004
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US20070160354A1
公开(公告)日：2007-07-12
申请号：US11703183
申请日：2007-02-07
Applicant: Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
Inventor： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
IPC: H02P7/29
CPC classification number: H02P29/50
Abstract: 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.
-
公开(公告)号：US20050105897A1
公开(公告)日：2005-05-19
申请号：US10895902
申请日：2004-07-22
Applicant: Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
Inventor： Chia-feng Wu , Ching-sen Hsieh , Yueh-lung Huang , Ming-shi Tsai
CPC classification number: H02P29/50
Abstract: 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.
Abstract translation: 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。
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.012 seconds)
