专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

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。

4. 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。

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. 发明授权

US09024611B2 Controller and converting controller with multi-function pin 有权
标题翻译：控制器和转换控制器与多功能引脚
公开(公告)号：US09024611B2
公开(公告)日：2015-05-05
申请号：US13585811
申请日：2012-08-14
申请人： Li-Min Lee , Quan Gan , Shian-Sung Shiu , Chung-Che Yu
发明人： Li-Min Lee , Quan Gan , Shian-Sung Shiu , Chung-Che Yu
IPC分类号： G05F1/10 , H02M3/156 , H02M1/32 , H01L21/00 , H02H3/10 , H02H7/122 , H02M3/158
CPC分类号： H02M3/156 , H01L21/00 , H02H3/10 , H02H7/1222 , H02H7/1227 , H02M1/32 , H02M3/158
摘要： A controller with a multi-function pin, adapted to control a converting circuit according to a control signal for converting an input voltage into an output voltage, is disclosed. The controller has the multi-function pin, an enable unit, an over-current detecting unit and a logic control unit. The enable unit is coupled to the multi-function pin for receiving an enable signal and activates the controller in response to the enable signal. The over-current detecting is coupled to the multi-function pin and determines an over-current value according to an over-current set resistance coupled between the multi-function pin and a voltage source. The over-current detecting unit generates an over-current protection signal according to the over-current value and a current flowing through the converting circuit. The logic control unit determines whether executing an over-current protection according to the over-current protection signal.
摘要翻译：公开了一种具有多功能引脚的控制器，其适于根据用于将输入电压转换为输出电压的控制信号来控制转换电路。控制器具有多功能引脚，使能单元，过流检测单元和逻辑控制单元。使能单元耦合到多功能引脚，用于接收使能信号，并响应于使能信号激活控制器。过电流检测耦合到多功能引脚，并根据耦合在多功能引脚和电压源之间的过电流设定电阻确定过电流值。过流检测单元根据过电流值和流过转换电路的电流产生过电流保护信号。逻辑控制单元根据过电流保护信号判定是否执行过电流保护。

10. 发明授权

US08558483B2 Non-linear load driving circuit and controller 有权
标题翻译：非线性负载驱动电路和控制器
公开(公告)号：US08558483B2
公开(公告)日：2013-10-15
申请号：US13118557
申请日：2011-05-30
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Xi Tu
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Xi Tu
IPC分类号： H05B37/02
CPC分类号： H05B33/0824 , H05B33/0815
摘要： A non-linear load driving circuit and a controller for controlling a conversion circuit to drive a non-linear load are provided. The controller includes a feedback unit, a pulse width control unit, and an overshoot reduction unit. The feedback unit generates a feedback signal according to a current feedback signal that represents a load current flowing through the non-linear load. The pulse width control unit generates a control signal according to the feedback signal to control a power output of the conversion circuit. The overshoot reduction unit generates an overshoot reduction signal when the load current changes from being smaller than to being greater than a predetermined value according to the current feedback signal. The pulse width control unit receives the overshoot reduction signal and reduces the duty cycle of the control signal accordingly. Thereby, stability of feedback control is improved and damage to circuit is prevented.
摘要翻译：提供了非线性负载驱动电路和用于控制转换电路以驱动非线性负载的控制器。控制器包括反馈单元，脉冲宽度控制单元和过冲减少单元。反馈单元根据表示流过非线性负载的负载电流的电流反馈信号产生反馈信号。脉冲宽度控制单元根据反馈信号产生控制信号，以控制转换电路的功率输出。当负载电流根据电流反馈信号从小于大于预定值变化时，过冲减少单元产生过冲减小信号。脉冲宽度控制单元接收过冲减小信号并相应地减小控制信号的占空比。由此，能够提高反馈控制的稳定性，防止对电路的损坏。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式