公开(公告)号：US20050024803A1

公开(公告)日：2005-02-03

申请号：US10902356

申请日：2004-07-27

申请人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

发明人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

IPC分类号： H02M1/34 ,  H02M3/335 ,  H02H3/26

CPC分类号： H02M1/34 ,  H02M3/33576 ,  H02M2001/342 ,  Y02B70/1491

摘要： An energy-feedback clamping circuit of a power converter is proposed. The converter includes a transformer coupled to a full-wave rectifier circuit. The clamping circuit includes: two clamping diodes having two anodes coupled to each other at a common-anode terminal and two cathodes coupled to two terminals of a secondary winding of the transformer, a first clamping capacitor having a first terminal coupled to a cathode of a first rectifying diode of the rectifier circuit and a second terminal coupled to the common-anode terminal, a second clamping capacitor having a first terminal coupled to a connecting node of the output filtering inductor and capacitor of the rectifier circuit and a second terminal coupled to the common-anode terminal, and a converter circuit having an input terminal coupled to the second clamping capacitor and an output terminal for offering a power source.

摘要翻译： 提出了一种功率转换器的能量反馈钳位电路。 该转换器包括耦合到全波整流电路的变压器。 钳位电路包括：两个钳位二极管，其具有在共阳极端子处彼此耦合的两个阳极和耦合到变压器的次级绕组的两个端子的两个阴极;第一钳位电容器，具有耦合到 整流电路的第一整流二极管和耦合到共阳极端子的第二端子，第二钳位电容器，其具有耦合到输出滤波电感器和整流器电路的电容器的连接节点的第一端子，以及耦合到整流电路的第二端子 公共阳极端子和具有耦合到第二钳位电容器的输入端子的转换器电路和用于提供电源的输出端子。

公开(公告)号：US09136201B2

公开(公告)日：2015-09-15

申请号：US13557158

申请日：2012-07-24

申请人： Aixing Tong ,  Teng Liu ,  Jianping Ying

发明人： Aixing Tong ,  Teng Liu ,  Jianping Ying

IPC分类号： H01L23/427 ,  H05K7/20 ,  H01L23/467 ,  F28D15/02

CPC分类号： H01L23/427 ,  F28D15/0275 ,  H01L23/467 ,  H01L2924/0002 ,  H05K7/2039 ,  H05K7/20909 ,  H05K7/20918 ,  H05K7/20936 ,  H01L2924/00

摘要： Disclosed are a hybrid heat sink and a hybrid heat sink assembly for a power module. The hybrid heat sink comprises a base provided with at least one power module on one side thereof, a first heat dissipation unit being a first heat dissipation fin group which is composed of a plurality of heat dissipation fins intervally arranged and is located on the other side of the base, and a second heat dissipation unit comprising a plurality of heat pipes and a second heat dissipation fin group. Each of the heat pipes comprises an evaporating section provided in the base and close to the power module, a condensing section, and an adiabatic section located between the evaporating section and the condensing section and comprises an extension portion and a folding portion, the second heat dissipation fin group is provided on the condensing sections.

摘要翻译： 公开了一种用于功率模块的混合散热器和混合散热器组件。 所述混合散热器包括在其一侧上设置有至少一个功率模块的基座，第一散热单元，第一散热单元，所述第一散热单元由多个隔热布置并位于另一侧的散热翅片组成， 以及包括多个热管和第二散热翅片组的第二散热单元。 每个热管包括设置在基座中并靠近功率模块的蒸发部分，冷凝部分和位于蒸发部分和冷凝部分之间的绝热部分，并且包括延伸部分和折叠部分，第二热量 冷凝段上设有散热片组。

公开(公告)号：US20130307416A1

公开(公告)日：2013-11-21

申请号：US13688703

申请日：2012-11-29

申请人： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

发明人： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/089 ,  Y02B20/341

摘要： The present application discloses an open circuit protecting circuit, an open circuit protecting method and an illuminating apparatus. The open circuit protecting circuit is configured in an apparatus with a LED load being supplied with power by a current source, and comprises: a switch circuit, a timer circuit and a detecting circuit. When the LED load malfunctions, the open circuit protecting circuit carries out the following operations: the detecting circuit sends an enabling signal to the timer circuit, the timer circuit sends a driving signal with a set time to the switch circuit and the switch circuit is in the on-state during the set time, so as to make the LED load be short circuited to protect the circuit from being damaged. The open circuit protecting circuit can also resume to normal work automatically after the open circuited malfunction is cleared, and thus a hot-plugging function can be realized.

摘要翻译： 本申请公开了一种开路保护电路，开路保护方法和照明装置。 开路保护电路配置在LED负载由电流源供电的装置中，包括：开关电路，定时器电路和检测电路。 当LED负载发生故障时，开路保护电路进行以下操作：检测电路向定时器电路发送使能信号，定时器电路向开关电路发送设定时间的驱动信号，开关电路处于 在设定时间内的导通状态，以使LED负载短路，以保护电路免受损坏。 开路保护电路也可以在断路故障后自动恢复正常工作，从而实现热插拔功能。

公开(公告)号：US08564221B2

公开(公告)日：2013-10-22

申请号：US13242094

申请日：2011-09-23

申请人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

发明人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： G05F1/00

CPC分类号： H05B41/38

摘要： A driving circuit system for a gas discharge lamp includes a power circuit having a switch for converting an input voltage into a lamp voltage for driving the gas discharge lamp, a lamp current detecting circuit connected to the power circuit or the gas discharge lamp for detecting a lamp current, a feedback circuit connected to the lamp current detecting circuit for generating a lamp current feedback signal, a constant power control circuit for generating a corrected current reference signal, and a power control circuit connected to the feedback circuit, the constant power control circuit, and the switch of the power circuit for generating a first modulating signal in accordance with the lamp current feedback signal and the corrected current reference signal for driving the switch to turn on or off, thereby substantially maintaining a lamp power of the gas discharge lamp at a constant value.

摘要翻译： 一种用于气体放电灯的驱动电路系统包括电源电路，其具有用于将输入电压转换为用于驱动气体放电灯的灯电压的开关，连接到电源电路的灯电流检测电路或用于检测气体放电灯的气体放电灯 连接到用于产生灯电流反馈信号的灯电流检测电路的反馈电路，用于产生校正的电流参考信号的恒功率控制电路和连接到反馈电路的功率控制电路，恒功率控制电路 以及用于根据灯电流反馈信号产生第一调制信号的电源电路的开关和用于驱动开关导通或关断的校正电流参考信号，从而基本上将气体放电灯的灯功率维持在 恒定值。

公开(公告)号：US08400787B2

公开(公告)日：2013-03-19

申请号：US13267186

申请日：2011-10-06

申请人： Hongyang Wu ,  Bin Wang ,  Jianhong Zeng ,  Jianping Ying ,  Xiaoni Xin

发明人： Hongyang Wu ,  Bin Wang ,  Jianhong Zeng ,  Jianping Ying ,  Xiaoni Xin

IPC分类号： H02M3/335 ,  H02M7/217

CPC分类号： H02M3/33592 ,  H02M3/3378 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02P80/112

摘要： The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for outputting an output voltage, a rectifying device having a first rectifying switch and a synchronous rectification control circuit coupled to the resonant converter and including a signal generation apparatus generating a weighted turn-off signal to turn off the first rectifying switch at a zero crossing point of a first current flowing through the first rectifying switch.

摘要翻译： 提供了一种谐振转换器系统的结构及其控制方法。 所提出的谐振转换器系统包括接收用于输出输出电压的输入电压的谐振变换器，具有第一整流开关和耦合到谐振转换器的同步整流控制电路的整流装置，并且包括产生加权关断的信号产生装置 信号以在流过第一整流开关的第一电流的过零点处关闭第一整流开关。

公开(公告)号：US20130049629A1

公开(公告)日：2013-02-28

申请号：US13314820

申请日：2011-12-08

申请人： Weiqiang Zhang ,  Yan Zhong ,  Jianping Ying

发明人： Weiqiang Zhang ,  Yan Zhong ,  Jianping Ying

IPC分类号： H05B41/16

CPC分类号： H05B41/295 ,  H05B41/2828

摘要： An electronic ballast for driving a light-emitting device, includes a square wave generator having a plurality of switch elements for converting a DC input voltage into a square-wave AC voltage. A transformer has a driving winding and a plurality of inductive windings mutually connected with each other, in which at least a portion of the inductive windings are respectively connected to a control terminal of the switch element. A resonant circuit connects the driving winding and a light-emitting device and converts the square-wave voltage into an AC output voltage to drive the light-emitting device. An auxiliary control unit connected to the transformer regulates a voltage waveform of the driving winding or a voltage waveform of the inductive winding according to a control signal, thereby changing the voltage waveform of the inductive winding connected to the switch element to adjust the switching frequencies of the switch elements.

摘要翻译： 一种用于驱动发光器件的电子镇流器，包括具有用于将DC输入电压转换为方波AC电压的多个开关元件的方波发生器。 变压器具有彼此相互连接的驱动绕组和多个感应绕组，其中至少一部分感应绕组分别连接到开关元件的控制端子。 谐振电路连接驱动绕组和发光装置，并将方波电压转换成AC输出电压以驱动发光装置。 连接到变压器的辅助控制单元根据控制信号调节驱动绕组的电压波形或电感性绕组的电压波形，从而改变连接到开关元件的电感线圈的电压波形，以调节开关频率 开关元件。

公开(公告)号：US20130033182A1

公开(公告)日：2013-02-07

申请号：US13339675

申请日：2011-12-29

申请人： Yuanyuan Zhong ,  Weiqiang Zhang ,  Jianping Ying

发明人： Yuanyuan Zhong ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： H05B37/02 ,  H05B37/03

CPC分类号： G01R31/24 ,  H05B41/2855

摘要： Disclosed is an end-of-life detector for gas discharge lamp and the ballast incorporating the same. The end-of-life detector includes a lamp state signal detecting circuit for detecting the lamp state signal of at least one first gas discharge lamp and generating a positive voltage signal and a negative voltage signal accordingly; a comparing circuit for comparing the positive voltage signal with a positive selecting voltage and comparing the negative voltage signal with a negative selecting voltage, and in response thereto generating a positive control signal and a negative control signal; and a positive/negative duty time interval detecting circuit for generating a lamp life state signal which is generated by a difference between a positive duty time interval and a negative duty time interval. The lamp life state signal is varied along with the difference between the positive duty time interval and the negative duty time interval.

摘要翻译： 公开了一种用于气体放电灯的寿命终止检测器和包括其的镇流器。 寿命终止检测器包括灯状态信号检测电路，用于检测至少一个第一气体放电灯的灯状态信号，并相应地产生正电压信号和负电压信号; 比较电路，用于将正电压信号与正选择电压进行比较，并将负电压信号与负选择电压进行比较，并响应于产生正控制信号和负控制信号; 以及正/负占空时间间隔检测电路，用于产生由正占空时间间隔和负占空时间间隔之间的差产生的灯寿命状态信号。 灯寿命状态信号随正负时间间隔和负占空时间间隔之间的差异而变化。

公开(公告)号：US08345450B2

公开(公告)日：2013-01-01

申请号：US12854253

申请日：2010-08-11

申请人： Chao Yan ,  Jianhong Zeng ,  Wenxin Zhang ,  Yiqing Ye ,  Jianping Ying ,  Peter Barbosa ,  Wen-Chang Lee

发明人： Chao Yan ,  Jianhong Zeng ,  Wenxin Zhang ,  Yiqing Ye ,  Jianping Ying ,  Peter Barbosa ,  Wen-Chang Lee

IPC分类号： H02M3/335

CPC分类号： H02M3/337 ,  H02M1/32 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： The configurations of a DC/DC resonant converter and a controlling method thereof are provided. The proposed converter includes an over-current protection apparatus including a first switch element having a first and a second terminals, and a first voltage element having a negative terminal coupled to a positive terminal of a DC input voltage source and a positive terminal coupled to the second terminal of the first switch element.

摘要翻译： 提供了DC / DC谐振变换器的结构及其控制方法。 所提出的转换器包括过电流保护装置，其包括具有第一和第二端子的第一开关元件和具有耦合到DC输入电压源的正端子的负端子的第一电压元件和耦合到 第一开关元件的第二端子。

公开(公告)号：US08305779B2

公开(公告)日：2012-11-06

申请号：US12551042

申请日：2009-08-31

申请人： Yansong Lu ,  Jingtao Tan ,  Xiao Chen ,  Hao Yu ,  Jianping Ying

发明人： Yansong Lu ,  Jingtao Tan ,  Xiao Chen ,  Hao Yu ,  Jianping Ying

IPC分类号： H02M5/45

CPC分类号： H02J9/062 ,  H02J2009/063 ,  Y02P80/112

摘要： The configurations of a parallel-connected UPS circuit are provided in the present invention. The proposed circuit includes a neutral, a battery having a positive and a negative terminals, and a plurality of PFC boost converters, each of which includes a PFC circuit including an inductor having a first terminal coupled to the positive terminal and a second terminal, a rectifying bridge coupled to the second terminal of the inductor, and having a first terminal and a second terminal coupled to the negative terminal, a switch bridge having a first terminal coupled to the first terminal of the rectifying bridge and a second terminal coupled to the second terminal of the rectifying bridge, and a control switch having a first terminal and a second terminal coupled to the neutral.

摘要翻译： 在本发明中提供并联UPS电路的配置。 所提出的电路包括中性线圈，具有正端子和负极端子的电池和多个PFC升压转换器，每个PFC升压转换器包括PFC电路，PFC电路包括具有耦合到正端子的第一端子和第二端子的电感器， 整流桥耦合到电感器的第二端子，并且具有耦合到负极端子的第一端子和第二端子，开关电桥，其具有耦合到整流桥的第一端子的第一端子和耦合到第二端子的第二端子 整流桥的端子和控制开关，其具有耦合到空档的第一端子和第二端子。

公开(公告)号：US20120049757A1

公开(公告)日：2012-03-01

申请号：US13073592

申请日：2011-03-28

申请人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

发明人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： H05B41/36

CPC分类号： H05B41/2887 ,  Y02B20/202

摘要： The invention proposes a ballast control circuit and ballast control method for gas discharge lamp. The ballast control circuit and control method of the invention is advantageous by allowing the OFF time of the main switch of the ballast circuit to be fixed in order to prevent the transformer of the ballast circuit from being saturated when the gas discharge lamp is ignited and has a very low impedance, and allowing the OFF time of the main switch to be flexibly adapted when the gas discharge lamp is warmed up and its impedance has risen up to a certain value. The inventive ballast control circuit is configured to proceed with the switching of the main switch according to a lamp status signal indicative of the status of the lamp.

摘要翻译： 本发明提出了一种用于气体放电灯的镇流器控制电路和镇流器控制方法。 本发明的镇流器控制电路和控制方法的优点在于，当镇流器电路的主开关的断开时间被固定时，为了防止镇流器的变压器在气体放电灯被点燃时饱和，并具有 非常低的阻抗，并且当气体放电灯加热并且其阻抗已经升高到一定值时允许主开关的断开时间被灵活地适配。 本发明的镇流器控制电路被配置为根据指示灯的状态的灯状态信号进行主开关的切换。