公开(公告)号：US20080054978A1

公开(公告)日：2008-03-06

申请号：US11889021

申请日：2007-08-08

申请人： Magellan Chiu ,  Venson Kuo

发明人： Magellan Chiu ,  Venson Kuo

IPC分类号： H03L5/00

CPC分类号： H03K7/08

摘要： A level-determining device of pulse width modulation (PWM) signal includes a PWM signal generating circuit, a reference voltage generating circuit and a determining circuit. The PWM signal generating circuit generates a first PWM signal. The reference voltage generating circuit generates a reference voltage signal. The determining circuit is respectively electrically connected to the PWM signal generating circuit and the reference voltage generating circuit for determining high level or low level of the first PWM signal in accordance with the reference voltage signal for generating a second PWM signal.

摘要翻译： 脉宽调制（PWM）信号的电平确定装置包括PWM信号发生电路，参考电压产生电路和确定电路。 PWM信号产生电路产生第一PWM信号。 参考电压产生电路产生参考电压信号。 判定电路分别电连接到PWM信号发生电路和参考电压发生电路，用于根据用于产生第二PWM信号的参考电压信号来确定第一PWM信号的高电平或低电平。

公开(公告)号：US20050194849A1

公开(公告)日：2005-09-08

申请号：US11014827

申请日：2004-12-20

申请人： Magellan Chiu ,  Venson Kuo ,  Wen-Shi Huang ,  Ming-Shi Tsai

发明人： Magellan Chiu ,  Venson Kuo ,  Wen-Shi Huang ,  Ming-Shi Tsai

IPC分类号： H02K29/08 ,  H02K37/00 ,  H02P6/12 ,  H02P6/16

CPC分类号： H02P6/16 ,  H02P29/032

摘要： Motors comprising stators and rotors having a plurality of north poles and south poles and methods of controlling the same. A first sensor and a second sensor are provided. The first and second sensors are disposed on the stator in a manner that the first and second sensors never simultaneously detect boundaries between the north and south poles during rotation of the rotor. If any one of the first and second sensors continuously detects a north pole or a south pole for a predetermined duration, the motor is shut off.

摘要翻译： 包括具有多个北极和南极的定子和转子的电动机及其控制方法。 提供第一传感器和第二传感器。 第一传感器和第二传感器设置在定子上，使得第一和第二传感器在转子旋转期间不会同时检测南极和南极之间的边界。 如果第一和第二传感器中的任何一个连续检测到北极或南极一段预定的持续时间，则马达被切断。

公开(公告)号：US07483249B2

公开(公告)日：2009-01-27

申请号：US10698893

申请日：2003-10-31

申请人： Lain-ken Lin ,  Magellan Chiu ,  Venson Kuo ,  Wen-shi Huang

发明人： Lain-ken Lin ,  Magellan Chiu ,  Venson Kuo ,  Wen-shi Huang

IPC分类号： H02H9/04

CPC分类号： H02H7/09 ,  H02H7/0833

摘要： An overvoltage protective device for DC motor is disclosed. The device includes a voltage-dividing circuit and a control unit, and is electrically connected to a DC motor in parallel. The voltage-dividing circuit has one end thereof electrically connected to an input voltage of the DC motor, and the other end thereof grounded. The control unit is electrically connected to a part of the voltage-dividing circuit for accessing a voltage level thereof and thereby driving the DC motor.

摘要翻译： 公开了一种用于直流电动机的过电压保护装置。 该装置包括分压电路和控制单元，并且并联电连接到DC电动机。 分压电路的一端与直流电动机的输入电压电连接，另一端接地。 控制单元电连接到分压电路的一部分以访问其电压电平，从而驱动DC电动机。

公开(公告)号：US07459876B2

公开(公告)日：2008-12-02

申请号：US11014827

申请日：2004-12-20

申请人： Magellan Chiu ,  Venson Kuo ,  Wen-Shi Huang ,  Ming-Shi Tsai

发明人： Magellan Chiu ,  Venson Kuo ,  Wen-Shi Huang ,  Ming-Shi Tsai

IPC分类号： H02P6/20

CPC分类号： H02P6/16 ,  H02P29/032

摘要： Motors comprising stators and rotors having a plurality of north poles and south poles and methods of controlling the same. A first sensor and a second sensor are provided. The first and second sensors are disposed on the stator in a manner that the first and second sensors never simultaneously detect boundaries between the north and south poles during rotation of the rotor. If any one of the first and second sensors continuously detects a north pole or a south pole for a predetermined duration, the motor is shut off.

摘要翻译： 包括具有多个北极和南极的定子和转子的电动机及其控制方法。 提供第一传感器和第二传感器。 第一传感器和第二传感器设置在定子上，使得第一和第二传感器在转子旋转期间不会同时检测南极和南极之间的边界。 如果第一和第二传感器中的任何一个连续检测到北极或南极一段预定的持续时间，则马达被切断。

公开(公告)号：US20050270815A1

公开(公告)日：2005-12-08

申请号：US11146035

申请日：2005-06-07

申请人： Magellan Chiu ,  Chun-Lung Chiu ,  Wei-Shuo Tseng ,  Ming-Shi Tsai

发明人： Magellan Chiu ,  Chun-Lung Chiu ,  Wei-Shuo Tseng ,  Ming-Shi Tsai

IPC分类号： H02M1/38 ,  H02M3/335 ,  H02M7/5387

CPC分类号： H02M1/38 ,  H02M7/53871

摘要： A full-bridge circuit for a heat dissipation system. The heat dissipation system further includes a fan and a control circuit. The control circuit outputs a first control signal and a second control signal. The full-bridge circuit includes a first control line having a first switch and a third switch serially coupled, a second control line includes a second switch and a fourth switch serially coupled, and a induction coil having one terminal coupled between the first and third switches and the other terminal coupled between the second and fourth switches. The ON/OFF states of the first and second switches are controlled by the first and second control signals respectively. The ON/OFF states of the third and fourth switches are controlled by two driving voltage sources respectively.

摘要翻译： 用于散热系统的全桥电路。 散热系统还包括风扇和控制电路。 控制电路输出第一控制信号和第二控制信号。 全桥电路包括具有第一开关和串联耦合的第三开关的第一控制线，第二控制线包括串联耦合的第二开关和第四开关，以及耦合在第一和第三开关之间的一个端子的感应线圈 并且另一个端子耦合在第二和第四开关之间。 第一和第二开关的ON / OFF状态分别由第一和第二控制信号控制。 第三和第四开关的ON / OFF状态分别由两个驱动电压源控制。

公开(公告)号：US07224137B2

公开(公告)日：2007-05-29

申请号：US11063553

申请日：2005-02-24

申请人： Magellan Chiu ,  Chun-Lung Chiu ,  Po-Tsun Kuo ,  Wen-Shi Huang

发明人： Magellan Chiu ,  Chun-Lung Chiu ,  Po-Tsun Kuo ,  Wen-Shi Huang

IPC分类号： H02P3/18 ,  H02P3/00

CPC分类号： H02P3/08

摘要： The present invention provides an instantaneous fan stopping method and structure thereof. The method and structure can eliminate the inertial rotating state of the fan when the power supplied to the fan is cut off. In accordance with the present invention, a closed circuit is formed between the two terminals of the coil used to drive the fan. When the closed circuit is formed, the inertial rotation of the fan can generate an induced current in this coil, which, in turn, generates a magnetic force to stop the fan.

摘要翻译： 本发明提供一种瞬时风扇停止方法及其结构。 当切断风扇的电源时，该方法和结构可以消除风扇的惯性旋转状态。 根据本发明，在用于驱动风扇的线圈的两个端子之间形成闭合电路。 当闭路形成时，风扇的惯性旋转可以在该线圈中产生感应电流，这又产生磁力来阻止风扇。

公开(公告)号：US07327589B2

公开(公告)日：2008-02-05

申请号：US11146035

申请日：2005-06-07

申请人： Magellan Chiu ,  Chun-Lung Chiu ,  Wei-Shuo Tseng ,  Ming-Shi Tsai

发明人： Magellan Chiu ,  Chun-Lung Chiu ,  Wei-Shuo Tseng ,  Ming-Shi Tsai

IPC分类号： H02M7/5387 ,  H02M3/24 ,  H02P5/34

CPC分类号： H02M1/38 ,  H02M7/53871

摘要： A full-bridge circuit for a heat dissipation system. The heat dissipation system further includes a fan and a control circuit. The control circuit outputs a first control signal and a second control signal. The full-bridge circuit includes a first control line having a first switch and a third switch serially coupled, a second control line includes a second switch and a fourth switch serially coupled, and a induction coil having one terminal coupled between the first and third switches and the other terminal coupled between the second and fourth switches. The ON/OFF states of the first and second switches are controlled by the first and second control signals respectively. The ON/OFF states of the third and fourth switches are controlled by two driving voltage sources respectively.

摘要翻译： 用于散热系统的全桥电路。 散热系统还包括风扇和控制电路。 控制电路输出第一控制信号和第二控制信号。 全桥电路包括具有第一开关和串联耦合的第三开关的第一控制线，第二控制线包括串联耦合的第二开关和第四开关，以及耦合在第一和第三开关之间的一个端子的感应线圈 并且另一个端子耦合在第二和第四开关之间。 第一和第二开关的ON / OFF状态分别由第一和第二控制信号控制。 第三和第四开关的ON / OFF状态分别由两个驱动电压源控制。

公开(公告)号：US06982531B2

公开(公告)日：2006-01-03

申请号：US10651587

申请日：2003-08-29

申请人： Lain-ken Lin ,  Sans Chang ,  Magellan Chiu ,  Wen-shi Huang

发明人： Lain-ken Lin ,  Sans Chang ,  Magellan Chiu ,  Wen-shi Huang

IPC分类号： H02P3/18

CPC分类号： H03K17/08122 ,  H02P7/05

摘要： A driving circuit for switches of direct current fan motor is disclosed. The driving circuit includes a plurality of switches, a first control circuit, and a second circuit. The switches are driven by a first pulse width modulation signal and a second pulse width modulation signal, and they are electrically connected with the direct current fan motor in a bridge manner. A third pulse width modulation signal is used to drive the first control circuit connected to at least one of the switches driven by the first pulse width modulation signal. A fourth pulse width modulation signal is used to drive the second control circuit connected to at least one of the switches driven by the second pulse width modulation signal. Especially, either the first pulse width modulation signal or the second pulse width modulation signal is selected as the third pulse width modulation signal or the fourth pulse width modulation signal.

摘要翻译： 公开了一种用于直流风扇电动机的开关的驱动电路。 驱动电路包括多个开关，第一控制电路和第二电路。 这些开关由第一脉冲宽度调制信号和第二脉冲宽度调制信号驱动，它们以桥式方式与直流风扇电动机电连接。 第三脉冲宽度调制信号用于驱动与由第一脉冲宽度调制信号驱动的至少一个开关连接的第一控制电路。 第四脉冲宽度调制信号用于驱动与由第二脉冲宽度调制信号驱动的至少一个开关连接的第二控制电路。 特别地，选择第一脉冲宽度调制信号或第二脉冲宽度调制信号作为第三脉冲宽度调制信号或第四脉冲宽度调制信号。

公开(公告)号：US20050257537A1

公开(公告)日：2005-11-24

申请号：US11075947

申请日：2005-03-10

申请人： Sans Chang ,  Magellan Chiu ,  Chun-Lung Chiu ,  Ming-Shi Tsai

发明人： Sans Chang ,  Magellan Chiu ,  Chun-Lung Chiu ,  Ming-Shi Tsai

IPC分类号： F24F7/00 ,  F24F11/00 ,  F25B49/00 ,  F25D17/00 ,  F25D17/04 ,  G05D23/19

CPC分类号： F24F11/77 ,  F24F11/30 ,  F24F2110/10 ,  F24F2110/20 ,  F25B2600/112 ,  F25B2700/02 ,  Y02B30/743

摘要： A fan speed control system. A temperature and humidity sensing unit detects environmental temperature and humidity and outputs a corresponding electrical signal. A micro-control unit receives and processes the electrical signal to obtain a digital signal, and sends the digital signal to the fan motor circuit to control fan speed accordingly.

摘要翻译： 风扇调速系统。 温度和湿度检测单元检测环境温度和湿度并输出相应的电信号。 微控制单元接收并处理电信号以获得数字信号，并将数字信号发送到风扇电动机电路以相应地控制风扇速度。

公开(公告)号：US20050184692A1

公开(公告)日：2005-08-25

申请号：US11063553

申请日：2005-02-24

申请人： Magellan Chiu ,  Chun-Lung Chiu ,  Po-Tsun Kuo ,  Wen-Shi Huang

发明人： Magellan Chiu ,  Chun-Lung Chiu ,  Po-Tsun Kuo ,  Wen-Shi Huang

IPC分类号： F04D27/00 ,  H02P3/08 ,  H02P3/12

CPC分类号： H02P3/08

摘要： The present invention provides an instantaneous fan stopping method and structure thereof. The method and structure can eliminate the inertial rotating state of the fan when the power supplied to the fan is cut off. In accordance with the present invention, a closed circuit is formed between the two terminals of the coil used to drive the fan. When the closed circuit is formed, the inertial rotation of the fan can generate an induced current in this coil, which, in turn, generates a magnetic force to stop the fan.

摘要翻译： 本发明提供一种瞬时风扇停止方法及其结构。 当切断风扇的电源时，该方法和结构可以消除风扇的惯性旋转状态。 根据本发明，在用于驱动风扇的线圈的两个端子之间形成闭合电路。 当闭路形成时，风扇的惯性旋转可以在该线圈中产生感应电流，这又产生磁力来阻止风扇。