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1. 发明申请

US20080122551A1 APPARATUS FOR PULSE WIDTH MODULATION AND METHOD FOR CONTROLLING THEREOF 审中-公开
标题翻译：用于脉冲宽度调制的装置及其控制方法
公开(公告)号：US20080122551A1
公开(公告)日：2008-05-29
申请号：US11609908
申请日：2006-12-13
申请人： Li-Min Lee , Chung-Che Yu , Chih-Shun Lee
发明人： Li-Min Lee , Chung-Che Yu , Chih-Shun Lee
IPC分类号： H03K7/08
CPC分类号： H03K7/08 , H02M3/156 , H03F2200/351
摘要： An apparatus for generating a pulse width modulated (PWM) signal to control a transforming circuit to drive a loading is provided. The apparatus includes an error signal generator, a control circuit and a comparator. The error signal generator includes a first input terminal for receiving a reference voltage, a second input terminal for receiving a feedback signal generated based on an operating state of the loading respectively, and an output terminal for outputting an error status signal. The comparator includes a first input terminal for receiving the error status signal, a second input terminal for receiving a compare signal, and an output terminal for generating the PWM signal. The control circuit determines whether to provide a setting signal coupled to the output terminal of the error signal generator based on at least one control signal.
摘要翻译：提供一种用于产生脉宽调制（PWM）信号以控制变换电路以驱动负载的装置。该装置包括误差信号发生器，控制电路和比较器。误差信号发生器包括用于接收参考电压的第一输入端子，用于分别接收基于负载运行状态产生的反馈信号的第二输入端子和用于输出错误状态信号的输出端子。比较器包括用于接收误差状态信号的第一输入端子，用于接收比较信号的第二输入端子和用于产生PWM信号的输出端子。控制电路基于至少一个控制信号来确定是否提供耦合到误差信号发生器的输出端的设置信号。

2. 发明申请

US20110156607A1 DC/AC Inverter 有权
标题翻译：直流/交流逆变器
公开(公告)号：US20110156607A1
公开(公告)日：2011-06-30
申请号：US13042472
申请日：2011-03-08
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B41/36 , H02M7/537
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A direct current to alternating current (DC/AC) inverter is for driving a fluorescent lamp through quasi sine wave generation. The DC/AC inverter includes a frequency generator for generating a reference signal and a modulation signal, a pulse width modulator coupled to the frequency generator for providing a pulse width modulation signal according to said modulation signal, a driver circuit coupled to the pulse width modulator for generating at least one driving signal according to the pulse width modulation signal and the reference signal, a half bridge power switch unit coupled to the driver circuit, and a resonant tank coupled to the fluorescent lamp for outputting a quasi sine wave to drive the fluorescent lamp.
摘要翻译：直流到交流（DC / AC）的逆变器用于通过准正弦波产生来驱动荧光灯。 DC / AC逆变器包括用于产生参考信号和调制信号的频率发生器，耦合到频率发生器的脉冲宽度调制器，用于根据所述调制信号提供脉宽调制信号;驱动器电路，耦合到脉宽调制器用于根据脉宽调制信号和参考信号产生至少一个驱动信号，耦合到驱动电路的半桥功率开关单元和耦合到荧光灯的谐振槽，用于输出准正弦波以驱动荧光灯。

3. 发明申请

US20120146534A1 DC/AC Inverter 有权
标题翻译：直流/交流逆变器
公开(公告)号：US20120146534A1
公开(公告)日：2012-06-14
申请号：US13396609
申请日：2012-02-15
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B41/36 , H02M7/44
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A fluorescent lamp device includes a frequency generator for generating a pulse signal, a driver circuit coupled to said frequency generator for generating at least one driving signal according to said pulse signal, a half bridge power switch unit coupled to the driver circuit, a resonant tank coupled to the half bridge power switch unit, and a fluorescent lamp coupled to the resonant tank.
摘要翻译：荧光灯装置包括用于产生脉冲信号的频率发生器，耦合到所述频率发生器的驱动电路，用于根据所述脉冲信号产生至少一个驱动信号;耦合到驱动电路的半桥功率开关单元，谐振槽耦合到半桥功率开关单元，以及耦合到谐振槽的荧光灯。

4. 发明授权

US08508145B2 DC/AC inverter 有权
标题翻译： DC / AC变频器
公开(公告)号：US08508145B2
公开(公告)日：2013-08-13
申请号：US13396609
申请日：2012-02-15
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A fluorescent lamp device includes a frequency generator for generating a pulse signal, a driver circuit coupled to said frequency generator for generating at least one driving signal according to said pulse signal, a half bridge power switch unit coupled to the driver circuit, a resonant tank coupled to the half bridge power switch unit, and a fluorescent lamp coupled to the resonant tank.
摘要翻译：荧光灯装置包括用于产生脉冲信号的频率发生器，耦合到所述频率发生器的驱动电路，用于根据所述脉冲信号产生至少一个驱动信号;耦合到驱动电路的半桥功率开关单元，谐振槽耦合到半桥功率开关单元，以及耦合到谐振槽的荧光灯。

5. 发明授权

US07531970B2 Power source driving circuits and controllers thereof 有权
标题翻译：电源驱动电路及其控制器
公开(公告)号：US07531970B2
公开(公告)日：2009-05-12
申请号：US11385536
申请日：2006-03-20
申请人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
发明人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
IPC分类号： G05F1/00
CPC分类号： H05B41/2828 , H05B41/2824 , H05B41/2855 , H05B41/2856 , Y02B20/186 , Y10S315/07
摘要： A controller for a driving circuit of power source comprises a frequency generator, a pulse width modulator, and a driving device. The frequency generator comprises a latch circuit. The frequency generator provides a pulse signal at a first frequency after the controller is started. After the frequency generator receives an indicating signal, the frequency generator changes the frequency of pulse signal from the first frequency to a second frequency and locks the frequency of pulse signal at the second frequency. The pulse width modulator provides a PWM signal according to the pulse signal and a feedback signal which indicates a status of electric power supply of the driving circuit. The driving device controls semiconductor switches according to the PWM signal.
摘要翻译：用于电源驱动电路的控制器包括频率发生器，脉宽调制器和驱动装置。频率发生器包括一个锁存电路。频率发生器在控制器启动后以第一个频率提供脉冲信号。在频率发生器接收到指示信号之后，频率发生器将脉冲信号的频率从第一频率改变到第二频率，并将脉冲信号的频率锁定在第二频率。脉冲宽度调制器根据脉冲信号提供PWM信号，并提供指示驱动电路的电力供应状态的反馈信号。驱动装置根据PWM信号控制半导体开关。

6. 发明申请

US20070126373A1 Power source driving circuits and controllers thereof 有权
标题翻译：电源驱动电路及其控制器
公开(公告)号：US20070126373A1
公开(公告)日：2007-06-07
申请号：US11385536
申请日：2006-03-20
申请人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
发明人： Chung-Che Yu , Chien-Pang Hung , Chih-Shun Lee , Chin-Fa Kao
IPC分类号： H05B41/36
CPC分类号： H05B41/2828 , H05B41/2824 , H05B41/2855 , H05B41/2856 , Y02B20/186 , Y10S315/07
摘要： A controller for a driving circuit of power source comprises a frequency generator, a pulse width modulator, and a driving device. The frequency generator comprises a latch circuit. The frequency generator provides a pulse signal at a first frequency after the controller is started. After the frequency generator receives an indicating signal, the frequency generator changes the frequency of pulse signal from the first frequency to a second frequency and locks the frequency of pulse signal at the second frequency. The pulse width modulator provides a PWM signal according to the pulse signal and a feedback signal which indicates a status of electric power supply of the driving circuit. The driving device controls semiconductor switches according to the PWM signal.
摘要翻译：用于电源驱动电路的控制器包括频率发生器，脉宽调制器和驱动装置。频率发生器包括一个锁存电路。频率发生器在控制器启动后以第一个频率提供脉冲信号。在频率发生器接收到指示信号之后，频率发生器将脉冲信号的频率从第一频率改变到第二频率，并将脉冲信号的频率锁定在第二频率。脉冲宽度调制器根据脉冲信号提供PWM信号，并提供指示驱动电路的电力供应状态的反馈信号。驱动装置根据PWM信号控制半导体开关。

7. 发明授权

US08143797B2 DC/AC inverter 有权
标题翻译： DC / AC变频器
公开(公告)号：US08143797B2
公开(公告)日：2012-03-27
申请号：US13042472
申请日：2011-03-08
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A direct current to alternating current (DC/AC) inverter is for driving a fluorescent lamp through quasi sine wave generation. The DC/AC inverter includes a frequency generator for generating a reference signal and a modulation signal, a pulse width modulator coupled to the frequency generator for providing a pulse width modulation signal according to said modulation signal, a driver circuit coupled to the pulse width modulator for generating at least one driving signal according to the pulse width modulation signal and the reference signal, a half bridge power switch unit coupled to the driver circuit, and a resonant tank coupled to the fluorescent lamp for outputting a quasi sine wave to drive the fluorescent lamp.
摘要翻译：直流到交流（DC / AC）的逆变器用于通过准正弦波产生来驱动荧光灯。 DC / AC逆变器包括用于产生参考信号和调制信号的频率发生器，耦合到频率发生器的脉冲宽度调制器，用于根据所述调制信号提供脉宽调制信号;驱动器电路，耦合到脉宽调制器用于根据脉宽调制信号和参考信号产生至少一个驱动信号，耦合到驱动电路的半桥功率开关单元和耦合到荧光灯的谐振槽，用于输出准正弦波以驱动荧光灯。

8. 发明授权

US07952296B2 Feedback circuit for DC/AC inverter 有权
标题翻译： DC / AC逆变器的反馈电路
公开(公告)号：US07952296B2
公开(公告)日：2011-05-31
申请号：US12693401
申请日：2010-01-25
申请人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
发明人： Chung-Che Yu , Shih-Chung Huang , Chien-Pang Hung , Chih-Shun Lee
IPC分类号： H05B37/02
CPC分类号： H02M7/53871 , H05B41/2825 , H05B41/2828 , Y02B20/186 , Y02B70/1441
摘要： A feedback circuit is utilized in a DC/AC inverter having a first power switch and a second power switch for driving a fluorescent lamp. The feedback circuit includes a protection circuit for disabling the first power switch and the second power switch when no fluorescent lamp is electrically connected, a first capacitor having a first terminal electrically connected to an output of the DC/AC inverter, a second capacitor having a first terminal electrically connected to a ground, and a second terminal electrically connected to a second terminal of the first capacitor, a diode having an anode electrically connected to the second terminals of the first and second capacitors, and a cathode electrically connected to the protection circuit, and a first resistor having a first terminal electrically connected to the cathode of the diode, and a second terminal electrically connected to the ground.
摘要翻译：在具有用于驱动荧光灯的第一电源开关和第二电源开关的DC / AC逆变器中采用反馈电路。所述反馈电路包括用于在没有荧光灯电连接时禁用所述第一电源开关和所述第二电源开关的保护电路，具有电连接到所述DC / AC逆变器的输出的第一端子的第一电容器，具有电连接到地的第一端子和与第一电容器的第二端子电连接的第二端子，具有电连接到第一和第二电容器的第二端子的阳极的二极管，以及电连接到保护电路的阴极以及第一电阻器，其具有电连接到二极管的阴极的第一端子和电连接到地的第二端子。

9. 发明申请

US20080048581A1 ELECTRONIC BALLAST AND METHOD FOR DRIVING FLUORESCENT LAMP 审中-公开
标题翻译：电子镇流器和驱动荧光灯的方法
公开(公告)号：US20080048581A1
公开(公告)日：2008-02-28
申请号：US11625995
申请日：2007-01-23
申请人： Chih-Shun Lee
发明人： Chih-Shun Lee
IPC分类号： H05B41/36
CPC分类号： H05B41/2981
摘要： An electronic ballast comprising a pulse width modulation (PWM) unit and a power-converting unit is provided. The PWM unit is used for generating a PWM signal to the power-converting unit so that the power-converting unit can generate a driving signal to drive and light up the fluorescent lamp according to the PWM signal. Specially, the duty cycle of the PWM signal is varied with time in a pre-heating period of the fluorescent lamp. In addition, the present invention further includes a detecting module for detecting a working voltage and a working current of the fluorescent lamp to determine whether the fluorescent lamp works normally. When the fluorescent lamp cannot work normally, the PWM signal generated by the PWM unit is disabled through the detecting module.
摘要翻译：提供了包括脉宽调制（PWM）单元和功率转换单元的电子镇流器。 PWM单元用于向功率转换单元产生PWM信号，使得功率转换单元可以产生驱动信号，以根据PWM信号驱动和点亮荧光灯。特别地，在荧光灯的预热期间，PWM信号的占空比随时间而变化。此外，本发明还包括检测模块，用于检测荧光灯的工作电压和工作电流，以确定荧光灯是否正常工作。当荧光灯不能正常工作时，通过检测模块禁止PWM单元产生的PWM信号。

10. 发明申请

US20080143269A1 DRIVING METHOD AND CIRCUIT FOR FLUORESCENT LAMP 审中-公开
标题翻译：荧光灯的驱动方法和电路
公开(公告)号：US20080143269A1
公开(公告)日：2008-06-19
申请号：US11693715
申请日：2007-03-30
申请人： Chih-Shun Lee , Chien-Pang Hung
发明人： Chih-Shun Lee , Chien-Pang Hung
IPC分类号： H05B37/02
CPC分类号： H05B41/2828 , H05B41/3925
摘要： A driving method for a fluorescent lamp is provided. A driving signal for driving the fluorescent lamp is generated, and an operating current of the fluorescent lamp is detected. The frequency of the driving signal is adjusted when the operating current of the fluorescent lamp reaches a first predetermined value. Besides, whether or not the operating current of the fluorescent lamp reaches a second predetermined value is detected in order to decide whether to stop generating the driving signal or not, wherein the second predetermined value is greater than the first predetermined value.
摘要翻译：提供了一种用于荧光灯的驱动方法。产生用于驱动荧光灯的驱动信号，并且检测荧光灯的工作电流。当荧光灯的工作电流达到第一预定值时，调节驱动信号的频率。此外，检测荧光灯的工作电流是否达到第二预定值，以便决定是否停止产生驱动信号，其中第二预定值大于第一预定值。

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