公开(公告)号：US20080252226A1

公开(公告)日：2008-10-16

申请号：US11962120

申请日：2007-12-21

申请人： CHIH-CHAN GER ,  WEN-LIN CHEN

发明人： CHIH-CHAN GER ,  WEN-LIN CHEN

IPC分类号： H05B37/02

CPC分类号： H05B41/2825

摘要： A light source driving device includes a power stage circuit, a first transformer circuit, a second transformer circuit, and a feedback control circuit. The power stage circuit converts a received signal to an alternating current (AC) signal, which includes a synchronizing switching bridge arm, a first bridge arm, and a second bridge arm. The synchronizing switching bridge arm has a Soft-Switching function, and forms a first full-bridge circuit with the first bridge arm and forms a second full-bridge circuit with the second bridge arm. The first transformer circuit is connected to the first full-bridge circuit, for converting the AC signal. The second transformer circuit is connected to the second full-bridge circuit, for converting the AC signal. The feedback control circuit is connected between the light source module and the power stage circuit, for controlling output of the power stage circuit.

摘要翻译： 光源驱动装置包括功率级电路，第一变压器电路，第二变压器电路和反馈控制电路。 功率级电路将接收到的信号转换成包括同步切换桥臂，第一桥臂和第二桥臂的交流（AC）信号。 同步开关桥臂具有软开关功能，并与第一桥臂形成第一全桥电路，并与第二桥臂形成第二全桥电路。 第一变压器电路连接到第一全桥电路，用于转换AC信号。 第二变压器电路连接到第二全桥电路，用于转换AC信号。 反馈控制电路连接在光源模块和功率级电路之间，用于控制功率级电路的输出。

公开(公告)号：US20080211418A1

公开(公告)日：2008-09-04

申请号：US12069876

申请日：2008-02-12

申请人： Jian-Hui Lu

发明人： Jian-Hui Lu

IPC分类号： H05B41/36 ,  H02M7/44

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2855

摘要： An exemplary inverter circuit (2) includes a full-bridge circuit (21) for converting a DC voltage into an AC low voltage, main inverse transformers (22) for converting the AC low voltage into an AC high voltage, and a feedback circuit (25). The feedback circuit includes a secondary inverse transformer (250) for converting the AC low voltage into an AC high voltage, a sampling unit (254) for sampling the AC high voltage and outputting a sampling voltage, and an integral circuit unit (205) for integrating the sampling voltage and outputting an integrated sampling voltage to the full-bridge circuit. When the AC low voltage outputted by the full-bridge circuit fluctuates, the feedback circuit sends a feedback voltage to the full-bridge circuit, and the full-bridge circuit stabilizes the AC low voltage according to the feedback voltage. The feedback voltage is in direct proportion to the fluctuation of the AC low voltage.

摘要翻译： 示例性的逆变器电路（2）包括用于将DC电压转换为AC低电压的全桥电路（21），用于将AC低电压转换为AC高电压的主反变压器（22）和反馈电路 25）。 该反馈电路包括用于将交流低电压转换成交流高电压的次级逆变压器（250），用于对交流高电压进行采样并输出采样电压的采样单元（254），以及用于 对采样电压进行积分并将整体采样电压输出到全桥电路。 当全桥电路输出的交流低电压波动时，反馈电路向全桥电路发送反馈电压，全桥电路根据反馈电压稳定交流低电压。 反馈电压与交流低电压的波动成正比。

公开(公告)号：US20080088249A1

公开(公告)日：2008-04-17

申请号：US11535988

申请日：2006-09-28

申请人： Jea-Sen Lin ,  Ta-yung Yang

发明人： Jea-Sen Lin ,  Ta-yung Yang

IPC分类号： H05B41/36

CPC分类号： H05B41/2825 ,  Y10S315/05 ,  Y10S315/07

摘要： A lower-cost ballast circuit for fluorescent lamps is provided. A resonant circuit is formed by a series connection of an inductor and a capacitor to operate the fluorescent lamp. A first circuit and a second circuit are coupled to switch the resonant circuit. Taking the first circuit for instance, a first resistor is connected in series with a first switch for generating a first control signal in response to a switching current of the first switch. The first switch is turned on once the first control signal is lower than a first zero-threshold. After a quarter resonant period of the resonant circuit, the first switch is turned off once the first control signal is lower than a first threshold. Therefore, a soft switching for the first switch is achieved.

摘要翻译： 提供了一种用于荧光灯的低成本镇流器电路。 谐振电路由电感器和电容器的串联连接形成，以操作荧光灯。 耦合第一电路和第二电路以切换谐振电路。 以第一电路为例，第一电阻器与第一开关串联连接，用于响应于第一开关的开关电流产生第一控制信号。 一旦第一控制信号低于第一零阈值，第一开关被接通。 在谐振电路的四分之一谐振周期之后，一旦第一控制信号低于第一阈值，第一开关被断开。 因此，实现了第一开关的软开关。

公开(公告)号：US07064497B1

公开(公告)日：2006-06-20

申请号：US11055003

申请日：2005-02-09

申请人： Guan-Chyun Hsieh

发明人： Guan-Chyun Hsieh

IPC分类号： H05B41/16

CPC分类号： H05B41/2825 ,  Y02B20/185 ,  Y10S315/04

摘要： A Synchronous PWM controller realized by dead-time modulation is provided for applying to the self-oscillation Royer inverter. The proposed dead-time-modulated PWM (DTM-PWM) controller is composed of a monostable circuit and a constant-current charger (CCC). The presented switching period for the buck regulation consists of a referred sawtooth having a constant-period and a dead-time. The synchronizing strategy is conducted by modulating the dead-time according to the resonant frequency of the Royer inverter. Two kinds of the control strategies in DTM-PWM controller are explored including the down-going and up-going error voltage controls. A DTM-PWM controlled dimmable Royer inverter with two-CCFL having primary-side control is designed and realized. Two kinds of the existing controllers for the Royer inverter are also experimented and compared with the proposed DTM-PWM controller. The results of the analysis and the theoretical prediction are verified with the experiments.

摘要翻译： 提供了通过死区时间调制实现的同步PWM控制器，用于应用于自振荡的Royer逆变器。 提出的死时调制PWM（DTM-PWM）控制器由单稳态电路和恒流充电器（CCC）组成。 所提出的降压调节的开关周期由具有恒定周期和死区时间的参考锯齿构成。 通过根据Royer逆变器的谐振频率调制死区时间来实现同步策略。 探讨了DTM-PWM控制器中的两种控制策略，包括下行和正在进行的误差电压控制。 设计并实现了具有初级侧控制的双CCFL的DTM-PWM控制可调光Royer逆变器。 还对罗尔逆变器的两种现有控制器进行了实验，并与提出的DTM-PWM控制器进行了比较。 通过实验验证了分析结果和理论预测结果。

公开(公告)号：US20050275353A1

公开(公告)日：2005-12-15

申请号：US11147210

申请日：2005-06-08

申请人： Felix Franck ,  Helmut Haeusser-Boehm

发明人： Felix Franck ,  Helmut Haeusser-Boehm

IPC分类号： H05B37/00 ,  H05B37/02 ,  H05B39/00 ,  H05B39/04 ,  H05B39/09 ,  H05B41/282

CPC分类号： H05B41/2825 ,  H05B39/045 ,  Y02B20/185

摘要： An electronic transformer for halogen incandescent lamps is equipped with a self-commutated half-bridge inverter. The half-bridge inverter contains a start circuit with a start capacitor (C3), which starts commutation of the half-bridge inverter after each mains half-wave by driving a lower half-bridge transistor (T2). The start circuit has to be suppressed while the half-bridge inverter is commutating. This is achieved according to the invention by discharging the start capacitor (C3) whenever an upper half-bridge transistor is turned on (T1). This is done by an amplifier element (V1), which is driven via a high-pass filter (C4) from the half-bridge midpoint (M).

摘要翻译： 用于卤素白炽灯的电子变压器配备有自换向半桥逆变器。 半桥逆变器包含具有启动电容器（C 3）的启动电路，其通过驱动下半桥晶体管（T 2）开始每个市电半波之后的半桥逆变器的换向。 半桥逆变器换向时必须抑制启动电路。 根据本发明，只要上半桥晶体管导通（T 1），通过放电启动电容器（C 3）来实现。 这通过从半桥中点（M）经由高通滤波器（C 4）驱动的放大器元件（V 1）来完成。

公开(公告)号：US06781315B2

公开(公告)日：2004-08-24

申请号：US09996314

申请日：2001-11-28

申请人： Kiyoshi Nishio ,  Toshiya Tanaka ,  Takayuki Fujita ,  Takeo Yasuda

发明人： Kiyoshi Nishio ,  Toshiya Tanaka ,  Takayuki Fujita ,  Takeo Yasuda

IPC分类号： H01J1346

CPC分类号： H05B41/2825 ,  H01J61/28 ,  H01J61/327 ,  H01J61/56 ,  Y02B20/185 ,  Y02B20/19

摘要： A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).

摘要翻译： 提供等效于典型灯泡的紧凑型自镇流荧光灯（10）。该自镇流荧光灯（10）包括盖（14），发光电路（16），电弧管（18）， 基座（12）和球体（17），并形成为其外形尺寸几乎与典型灯泡的标准尺寸相同的形状。 电弧管（18）由多个U形弯管（31）组成，其内管直径范围为6至9mm并彼此平行。 具有50至60mm的灯泡高度和200至300mm长的放电路径，电弧管（18）被设计成使得总光通量不小于700lm，灯效率不小于60 当灯以7至15W的灯功率点亮时，lm / W。包括盖（14）和球体（17）的信封（19）具有110至125mm的高度，包括高度 基地（12）。

公开(公告)号：US06756746B2

公开(公告)日：2004-06-29

申请号：US10247796

申请日：2002-09-19

申请人： Louis R. Nerone ,  David J. Kachmarik ,  Melvin C. Cosby, Jr.

发明人： Louis R. Nerone ,  David J. Kachmarik ,  Melvin C. Cosby, Jr.

IPC分类号： G05F100

CPC分类号： H05B41/2825

摘要： An inverter circuit for ballasting a gas discharge lamp having a delay circuit designed to delay regenerative control of the inverter switches until a d.c. bus has attained steady-state operating d.c. voltage. The inverter circuit includes a drive control circuit for inducing an a.c. load current. The inverter circuit includes first and second complementary switches serially connected between the bus and a reference bus. The switches are connected together at a common node through which the a.c. load current flows. A driving inductor is connected at one end to the common node and operatively connected at the remaining end to a control node. A load circuit includes a resonant inductor connected at one end to the common node, with the resonant inductor mutually coupled to the driving inductor. A resonant capacitor is serially connected between the remaining end of the resonant inductor and the reference bus. The gas discharge lamp is serially connected with a d.c. blocking capacitor across the resonant capacitor. A delay circuit, comprising a serially connected resistor and capacitor is connected across the drive control circuit.

摘要翻译： 一种用于镇流气体放电灯的逆变器电路，其具有设计成延迟逆变器开关的再生控制的延迟电路，直到直流。 公交车达到稳态运行。 电压。 逆变器电路包括一个驱动控制电路，用于引导一个直流 负载电流。 逆变器电路包括串联连接在总线和参考总线之间的第一和第二互补开关。 交换机在一个公共节点上连接在一起，通过该交换机 负载电流流动。 驱动电感器的一端连接到公共节点，并在其余端可操作地连接到控制节点。 负载电路包括在一端连接到公共节点的谐振电感器，谐振电感器相互耦合到驱动电感器。 谐振电容器串联连接在谐振电感器的剩余端和参考总线之间。 气体放电灯与直流电连接。 阻断电容器在谐振电容器两端。 包括串联连接的电阻器和电容器的延迟电路跨过驱动控制电路连接。

公开(公告)号：US06710474B2

公开(公告)日：2004-03-23

申请号：US10032566

申请日：2002-01-02

申请人： Felix Franck

发明人： Felix Franck

IPC分类号： H03K1704

CPC分类号： H05B41/2825 ,  Y10T307/826 ,  Y10T307/865

摘要： A circuit for switching on a partial circuit includes a first switching element (T1), a second switching element (T2 to T6), an activation circuit for the first switching element, a first diode (D1), a second diode (D2), and a third diode (D3). During operation, when the partial circuit is being switched on, first switching element (T1) is activated and second switching element (T2 to T6) is assigned no activity. The activation circuit for the first switching element (T1) includes a storage capacitor (C1) and a DIAC coupled to a control electrode of the first switching element (T1). First diode (D1), second diode (D2), and third diode (D3) are arranged such that stored energy in storage capacitor (C1) is more effectively utilized for activating the first switching element (T1), thus allowing use of a smaller capacitance for the storage capacitor (C1).

摘要翻译： 用于接通部分电路的电路包括第一开关元件（T1），第二开关元件（T2至T6），第一开关元件的启动电路，第一二极管（D1），第二二极管（D2） 和第三二极管（D3）。 在操作期间，当部分电路接通时，第一开关元件（T1）被激活，第二开关元件（T2至T6）被分配无活动。 用于第一开关元件（T1）的激活电路包括耦合到第一开关元件（T1）的控制电极的存储电容器（C1）和DIAC。 第一二极管（D1），第二二极管（D2）和第三二极管（D3）被布置为使得存储电容器（C1）中的存储能量更有效地用于激活第一开关元件（T1），从而允许使用较小的 存储电容器（C1）的电容。

公开(公告)号：US06707260B2

公开(公告)日：2004-03-16

申请号：US10255846

申请日：2002-09-26

申请人： Nicolaas Hendrik Mario Pol ,  Feng-Kang Hu ,  Yimin Chen

发明人： Nicolaas Hendrik Mario Pol ,  Feng-Kang Hu ,  Yimin Chen

IPC分类号： H05B3702

CPC分类号： H02M1/36 ,  H02M7/53832 ,  H05B41/2825 ,  Y02B20/185

摘要： A self-oscillating bridge circuit comprises a start circuit for rendering one of the switches conductive for the first time at the start of operation. The start circuit is configured in such a way that it does not influence the switching of the bridge switches during stationary operation.

摘要翻译： 自振荡桥电路包括用于使开关中的一个开关首次导通的启动电路。 启动电路被配置成在静止操作期间不影响桥式开关的切换。

公开(公告)号：US06628090B1

公开(公告)日：2003-09-30

申请号：US10161060

申请日：2002-05-31

申请人： Rosario Scollo

发明人： Rosario Scollo

IPC分类号： H05B3702

CPC分类号： H05B41/2825 ,  H05B41/2856 ,  Y10S315/05

摘要： A resonant driving system for a fluorescent lamp having one end connected to a primary winding of a transformer. The driving system includes an inductor inserted between an input section of the resonant driving system and an internal circuit node that is connected to another end of the fluorescent lamp a converter inserted between the internal node and a voltage reference and comprising a first transistor and a second transistor of the complementary type, inserted, in series to each other, between the internal node and the voltage reference, and a control circuit connected to a secondary winding of the transformer and to the converter as well as to the control terminals of the first and second transistors of the converter, wherein the control circuit comprises an inductor connected to a resistor that is connected to the control terminals of the first and second transistors through a first and a second capacitor respectively.

摘要翻译： 一种用于荧光灯的谐振驱动系统，其一端连接到变压器的初级绕组。 所述驱动系统包括插入在所述谐振驱动系统的输入部分和内部电路节点之间的电感器，所述内部电路节点连接到插入在所述内部节点和电压基准之间的荧光灯的转换器的另一端，并且包括第一晶体管和第二晶体管 互补型晶体管，在内部节点和电压基准之间串联插入，以及连接到变压器的次级绕组和转换器的控制电路以及连接到第一和第二控制端子的控制端子 所述转换器的第二晶体管，其中所述控制电路包括连接到电阻器的电感器，所述电阻器分别通过第一和第二电容器连接到所述第一和第二晶体管的控制端子。