公开(公告)号：US20060139965A1

公开(公告)日：2006-06-29

申请号：US11158147

申请日：2005-06-20

申请人： Hongjian Gan ,  Qinggang Kong ,  Youjun Zhang ,  Jianping Ying

发明人： Hongjian Gan ,  Qinggang Kong ,  Youjun Zhang ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/285 ,  H02M2001/0032 ,  Y02B70/16

摘要： A power supply device and a single photo-coupler control circuit thereof are provided. The power supply device includes a single photo-coupler control circuit, a main converter and an auxiliary converter. The main converter connects to an output load. The auxiliary converter connects in parallel with the main converter. The single photo-coupler control circuit, also connected to the output load, monitors the status of the power supply device and controls the main converter and the auxiliary converter accordingly. The single photo-coupler control circuit only has one photo-coupler. The main converter and the auxiliary converter together provide a first output to the output load when the power supply device works in a normal mode. The main converter is turned off so that only the auxiliary converter provides a second output to the output load when the power supply device works in a standby mode.

摘要翻译： 提供了电源装置及其单个光电耦合器控制电路。 电源装置包括单个光耦合器控制电路，主转换器和辅助转换器。 主转换器连接到输出负载。 辅助转换器与主转换器并联连接。 单个光耦合器控制电路也连接到输出负载，监视电源设备的状态，并相应地控制主转换器和辅助转换器。 单个光电耦合器控制电路只有一个光电耦合器。 当电源装置工作在正常模式时，主转换器和辅助转换器一起为输出负载提供第一输出。 主转换器被关闭，使得仅当辅助转换器在待机模式下工作时，辅助转换器向输出负载提供第二输出。

公开(公告)号：US07200013B2

公开(公告)日：2007-04-03

申请号：US11158147

申请日：2005-06-20

申请人： Hongjian Gan ,  Qinggang Kong ,  Youjun Zhang ,  Jianping Ying

发明人： Hongjian Gan ,  Qinggang Kong ,  Youjun Zhang ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/285 ,  H02M2001/0032 ,  Y02B70/16

摘要： A power supply device and a single photo-coupler control circuit thereof are provided. The power supply device includes a single photo-coupler control circuit, a main converter and an auxiliary converter. The main converter connects to an output load. The auxiliary converter connects in parallel with the main converter. The single photo-coupler control circuit, also connected to the output load, monitors the status of the power supply device and controls the main converter and the auxiliary converter accordingly. The single photo-coupler control circuit only has one photo-coupler. The main converter and the auxiliary converter together provide a first output to the output load when the power supply device works in a normal mode. The main converter is turned off so that only the auxiliary converter provides a second output to the output load when the power supply device works in a standby mode.

摘要翻译： 提供了电源装置及其单个光电耦合器控制电路。 电源装置包括单个光耦合器控制电路，主转换器和辅助转换器。 主转换器连接到输出负载。 辅助转换器与主转换器并联连接。 单个光耦合器控制电路也连接到输出负载，监视电源设备的状态，并相应地控制主转换器和辅助转换器。 单个光电耦合器控制电路只有一个光电耦合器。 当电源装置工作在正常模式时，主转换器和辅助转换器一起为输出负载提供第一输出。 主转换器被关闭，使得仅当辅助转换器在待机模式下工作时，辅助转换器向输出负载提供第二输出。

公开(公告)号：US20070091650A1

公开(公告)日：2007-04-26

申请号：US11470090

申请日：2006-09-05

申请人： Lifeng Chen ,  Teng Liu ,  Hongjian Gan ,  Jianping Ying

发明人： Lifeng Chen ,  Teng Liu ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  Y02B70/1475

摘要： The adaptive synchronous rectification control circuit and its controlling method for a power converter are provided. The proposed control circuit having a transformer with a primary and a secondary sides, a switch coupled to the primary side and a synchronous rectification transistor (SRT) coupled to the secondary side and having a parasitic diode includes a preprocessor receiving a source-drain voltage of the SRT and outputting a first signal, and a control set receiving the first signal, a pre-determined voltage and a pulse signal synchronized to the switch and generating a second signal synchronized to the switch for controlling the SRT, in which a selection of the pre-determined voltage makes the source-drain voltage of the SRT ranged from 0 to a conducting voltage of the parasitic diode of the SRT.

摘要翻译： 提供了自适应同步整流控制电路及其电源转换器的控制方法。 所提出的控制电路具有具有初级侧和次级侧的变压器，耦合到初级侧的开关和耦合到次级侧并具有寄生二极管的同步整流晶体管（SRT），包括预处理器，其接收源极 - 漏极电压 SRT并且输出第一信号，以及接收第一信号的控制集，与开关同步的预定电压和脉冲信号，并产生与开关同步的第二信号以控制SRT，其中选择 预定电压使SRT的源极 - 漏极电压范围为0到SRT的寄生二极管的导通电压。

公开(公告)号：US20130188401A1

公开(公告)日：2013-07-25

申请号：US13466670

申请日：2012-05-08

申请人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

发明人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M1/4225 ,  H02H3/14 ,  H02M1/4258 ,  H02M2001/322 ,  Y02B70/126 ,  Y02P80/112

摘要： A capacitor discharging circuit and a converter are disclosed. The converter comprises: a capacitor connected between the live line and null line of an AC power input terminals, a conversion module coupled to the capacitor and comprising an energy storage component at least, an energy transfer unit coupled with the energy storage component and the capacitor, an AC power-off detecting unit and a control unit; wherein the energy transfer unit comprises a switch device; when AC power is disconnected, the AC power-off signal triggers the control unit to output a switch driving signal, controlling the operation of the energy transfer unit to transfer the energy stored in the capacitor to the energy storage component to discharge the capacitor.

摘要翻译： 公开了电容器放电电路和转换器。 该转换器包括：连接在交流电源输入端的实线和零线之间的电容器，耦合到电容器的转换模块，至少包括能量存储部件，与能量存储部件和电容器耦合的能量传递单元 AC电源关闭检测单元和控制单元; 其中所述能量传递单元包括开关装置; 当交流电源断开时，交流断电信号触发控制单元输出开关驱动信号，控制能量转移单元的运行，将存储在电容器中的能量转移到能量存储组件以对电容器进行放电。

公开(公告)号：US20050237010A1

公开(公告)日：2005-10-27

申请号：US11070642

申请日：2005-03-02

申请人： Jianping Ying ,  Chaoqun Sun ,  Hongjian Gan

发明人： Jianping Ying ,  Chaoqun Sun ,  Hongjian Gan

IPC分类号： G02F1/133 ,  H05B39/00 ,  H05B41/24 ,  H05B41/282

CPC分类号： H05B41/282 ,  H05B41/245 ,  Y02B20/183

摘要： The proposed architecture includes a Dual Boost PFC circuit for receiving the AC input voltage and generating the DC bus voltage, at least one inverter coupled to the Dual Boost PFC circuit for driving at least one CCFL to offer a backlight of a LCD panel, and a DC/DC converter coupled to the Dual Boost PFC circuit for offering power to the LCD apparatus. Since neither the input bridge rectifier nor the DC/DC converter between the PFC circuit and the backlight inverter is included in the presented architecture, relatively the simpler configuration and the higher conversion efficiency than those of the prior art are achieved.

摘要翻译： 所提出的架构包括用于接收AC输入电压并产生DC总线电压的双升压PFC电路，耦合到双升压PFC电路的至少一个逆变器用于驱动至少一个CCFL以提供LCD面板的背光，以及 耦合到双升压PFC电路的DC / DC转换器，为LCD装置提供电力。 由于PFC电路和背光反相器之间的输入桥式整流器和DC / DC转换器都不包括在本架构中，所以实现了比现有技术更简单的配置和更高的转换效率。

公开(公告)号：US07884496B2

公开(公告)日：2011-02-08

申请号：US12147797

申请日：2008-06-27

申请人： Fei Li ,  Hongjian Gan ,  Jianping Ying

发明人： Fei Li ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02J3/14

CPC分类号： H02M3/285 ,  H02M3/33561 ,  Y10T307/297 ,  Y10T307/406

摘要： The configurations of a switched-mode power supply and a controlling method thereof are provided. The proposed switched-mode power supply includes a first output converter receiving a DC input voltage and generating a first high power DC voltage output and at least one low power DC voltage output, and a second output converter receiving the DC input voltage and generating a second high power DC voltage output coupled to the first high power DC voltage output to generate a coupled output, wherein the first output converter works and the second output converter idles when a transient power of the coupled output is not larger than a rated output power of the first high power DC voltage output, and both the first and the second output converters work when the transient power is larger than the rated output power.

摘要翻译： 提供了开关电源的配置及其控制方法。 所提出的开关电源包括接收DC输入电压并产生第一高功率DC电压输出的第一输出转换器和至少一个低功率DC电压输出，以及接收DC输入电压的第二输出转换器，并产生第二 高功率直流电压输出耦合到第一高功率直流电压输出以产生耦合输出，其中第一输出转换器工作，而第二输出转换器在耦合输出的瞬态功率不大于 第一高功率直流电压输出，当瞬态功率大于额定输出功率时，第一和第二输出转换器都工作。

公开(公告)号：US07495934B2

公开(公告)日：2009-02-24

申请号：US11470090

申请日：2006-09-05

申请人： Lifeng Chen ,  Teng Liu ,  Hongjian Gan ,  Jianping Ying

发明人： Lifeng Chen ,  Teng Liu ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  Y02B70/1475

摘要： The adaptive synchronous rectification control circuit and its controlling method for a power converter are provided. The proposed control circuit having a transformer with a primary and a secondary sides, a switch coupled to the primary side and a synchronous rectification transistor (SRT) coupled to the secondary side and having a parasitic diode includes a preprocessor receiving a source-drain voltage of the SRT and outputting a first signal, and a control set receiving the first signal, a pre-determined voltage and a pulse signal synchronized to the switch and generating a second signal synchronized to the switch for controlling the SRT, in which a selection of the pre-determined voltage makes the source-drain voltage of the SRT ranged from 0 to a conducting voltage of the parasitic diode of the SRT.

摘要翻译： 提供了自适应同步整流控制电路及其电源转换器的控制方法。 所提出的控制电路具有具有初级侧和次级侧的变压器，耦合到初级侧的开关和耦合到次级侧并具有寄生二极管的同步整流晶体管（SRT），包括预处理器，其接收源极 - 漏极电压 SRT并且输出第一信号，以及接收第一信号的控制集，与开关同步的预定电压和脉冲信号，并产生与开关同步的第二信号以控制SRT，其中选择 预定电压使SRT的源极 - 漏极电压范围为0到SRT的寄生二极管的导通电压。

公开(公告)号：US20060187686A1

公开(公告)日：2006-08-24

申请号：US11158534

申请日：2005-06-21

申请人： Chaoqun Sun ,  Hongjian Gan ,  Jianping Ying

发明人： Chaoqun Sun ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02P80/112

摘要： An LLC series resonant converter and a driving method for the synchronous rectification power switches thereof are provided. The LLC series resonant converter includes a bridge circuit, a resonant network, a transformer, a rectification circuit, and a frequency adjustment controller. The bridge circuit includes at least one pair of power switches. The power switches drive the resonant network. The rectification circuit includes at least one pair of synchronous rectification power switches. The synchronous rectification power switches and the power switches have a mapping relation between them. The frequency adjustment controller provides driving signals to the synchronous rectification power switches in response to the operating frequency of the LLC series resonant converter and the series resonant frequency of the resonant network, to implement synchronous rectification in the LLC series resonant converter.

摘要翻译： 提供一种LLC串联谐振变换器及其同步整流电源开关的驱动方法。 LLC串联谐振变换器包括桥式电路，谐振网络，变压器，整流电路和频率调节控制器。 桥接电路包括至少一对电源开关。 电源开关驱动谐振网络。 整流电路包括至少一对同步整流电源开关。 同步整流电源开关和电源开关之间具有映射关系。 频率调节控制器响应于LLC串联谐振变换器的工作频率和谐振网络的串联谐振频率向同步整流功率开关提供驱动信号，以在LLC串联谐振变换器中实现同步整流。

公开(公告)号：US09263939B2

公开(公告)日：2016-02-16

申请号：US13466670

申请日：2012-05-08

申请人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

发明人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M3/335 ,  H02M1/42 ,  H02H3/14 ,  H02M1/32

CPC分类号： H02M1/4225 ,  H02H3/14 ,  H02M1/4258 ,  H02M2001/322 ,  Y02B70/126 ,  Y02P80/112

摘要： A capacitor discharging circuit and a converter are disclosed. The converter comprises: a capacitor connected between the live line and null line of an AC power input terminals, a conversion module coupled to the capacitor and comprising an energy storage component at least, an energy transfer unit coupled with the energy storage component and the capacitor, an AC power-off detecting unit and a control unit; wherein the energy transfer unit comprises a switch device; when AC power is disconnected, the AC power-off signal triggers the control unit to output a switch driving signal, controlling the operation of the energy transfer unit to transfer the energy stored in the capacitor to the energy storage component to discharge the capacitor.

摘要翻译： 公开了电容器放电电路和转换器。 该转换器包括：连接在交流电源输入端的实线和零线之间的电容器，耦合到电容器的转换模块，至少包括能量存储部件，与能量存储部件和电容器耦合的能量传递单元 AC电源关闭检测单元和控制单元; 其中所述能量传递单元包括开关装置; 当交流电源断开时，交流断电信号触发控制单元输出开关驱动信号，控制能量转移单元的运行，将存储在电容器中的能量转移到能量存储组件以对电容器进行放电。

公开(公告)号：US08953347B2

公开(公告)日：2015-02-10

申请号：US13482750

申请日：2012-05-29

申请人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

发明人： Hongyuan Jin ,  Baochen Wang ,  Hongjian Gan ,  Jianping Ying

IPC分类号： H02M1/00

CPC分类号： H02M1/32 ,  H02M7/217 ,  H02M2001/322

摘要： A capacitor discharging circuit and a power converter having the capacitor discharging circuit are disclosed. The capacitor discharging circuit comprises a conversion module connected with the two terminals of the capacitor, an AC power-off detecting unit used to detect on-off state of AC power, and a control unit. The conversion module comprises an energy consumption unit. When AC power is disconnected, the AC power-off signal generated by the AC power-off detecting unit intervenes the control unit to control the energy consumption unit to consume the energy stored in the capacitor.

摘要翻译： 公开了具有电容器放电电路的电容器放电电路和功率转换器。 电容器放电电路包括与电容器的两个端子连接的转换模块，用于检测交流电源的开关状态的AC断电检测单元和控制单元。 转换模块包括能量消耗单元。 当交流电源断开时，由交流断电检测单元产生的交流断电信号插入控制单元以控制能量消耗单元以消耗存储在电容器中的能量。