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1. 发明申请

US20130147357A1 SYSTEMS AND METHODS FOR CONTROLLING BRIGHTNESS OF COLD-CATHODE FLUORESCENT LAMPS WITH WIDE DIMMING RANGE AND ADJUSTABLE MINIMUM BRIGHTNESS 有权
标题翻译：用于控制具有宽度调节范围和可调光最小亮度的冷阴极荧光灯亮度的系统和方法
公开(公告)号：US20130147357A1
公开(公告)日：2013-06-13
申请号：US13762222
申请日：2013-02-07
申请人： On-Bright Electronics (Shanghai) Co., Ltd.
发明人： Miao Li , Liqiang Zhu , Lieyi Fang
IPC分类号： H05B41/39
CPC分类号： H05B41/39 , H05B41/282 , H05B41/3927 , Y02B20/183
摘要： System and method for adjusting brightness of one or more cold-cathode fluorescent lamps. The system includes a voltage selector configured to receive a dimming voltage and a first threshold voltage and generate an output voltage. The output voltage is selected from a group consisting of the dimming voltage and the first threshold voltage. Additionally, the system includes an oscillator coupled to a first capacitor and configured to generate a ramp signal with the first capacitor, and a signal generator configured to receive the ramp signal and the output voltage and generate a first signal. The first signal corresponds to a lamp brightness level. Moreover, the system includes a brightness detector configured to receive the first signal and output a second signal. The second signal indicates whether the lamp brightness level is higher than a threshold brightness level.
摘要翻译：用于调节一个或多个冷阴极荧光灯的亮度的系统和方法。该系统包括被配置为接收调光电压和第一阈值电压并产生输出电压的电压选择器。输出电压从由调光电压和第一阈值电压组成的组中选择。另外，该系统包括耦合到第一电容器并被配置为产生与第一电容器的斜坡信号的振荡器，以及被配置为接收斜坡信号和输出电压并产生第一信号的信号发生器。第一个信号对应于灯的亮度级别。此外，该系统包括配置成接收第一信号并输出第二信号的亮度检测器。第二信号指示灯亮度是否高于阈值亮度级。

2. 发明授权

US08330707B2 Lighting device for cold-cathode tube and control method thereof 有权
标题翻译：冷阴极管照明装置及其控制方法
公开(公告)号：US08330707B2
公开(公告)日：2012-12-11
申请号：US12696744
申请日：2010-01-29
申请人： Isamu Kaneyasu
发明人： Isamu Kaneyasu
IPC分类号： G09G3/36
CPC分类号： H05B41/285 , H05B41/392 , Y02B20/183
摘要： A lighting device for a cold-cathode tube includes an inverter that supplies a current through the cold-cathode tube, an operation portion through which a luminance adjustment is performed, an inverter control circuit that controls the inverter in accordance with a luminance adjustment value adjusted through the operation portion so as to change the current flowing through the cold-cathode tube, and a protective circuit that stops operation of the inverter when the current flowing through the cold-cathode tube becomes smaller than a predetermined set value. The protective circuit of the lighting device is controlled in such a way that the protective circuit does not operate when the luminance adjustment value adjusted through the operation portion is smaller than a luminance threshold value.
摘要翻译：用于冷阴极管的照明装置包括：逆变器，其提供通过冷阴极管的电流，执行亮度调节的操作部分;逆变器控制电路，其根据调节的亮度调整值来控制逆变器通过操作部分改变流过冷阴极管的电流，以及当流过冷阴极管的电流变得小于预定设定值时停止逆变器运行的保护电路。控制照明装置的保护电路，使得当通过操作部分调整的亮度调整值小于亮度阈值时，保护电路不工作。

3. 发明授权

US08093836B2 Circuit arrangement and method for striking a discharge lamp 失效
标题翻译：用于击打放电灯的电路布置和方法
公开(公告)号：US08093836B2
公开(公告)日：2012-01-10
申请号：US12442407
申请日：2006-09-25
申请人： Olaf Busse , Siegfried Mayer , Arwed Storm
发明人： Olaf Busse , Siegfried Mayer , Arwed Storm
IPC分类号： H05B37/02
CPC分类号： H05B41/282 , Y02B20/183
摘要： A circuit arrangement for striking a discharge lamp, comprising: a drive apparatus, having an output adapted to provide a drive signal with a predeterminable frequency; an inverter, which is coupled to the output of the drive apparatus, and having an output adapted to provide a square-wave signal with a predeterminable duty factor; a load circuit, which is coupled to the output of the inverter and has at least one terminal for the discharge lamp, the load circuit comprising a lamp inductor, which is coupled in series between the output of the inverter and the at least one terminal for the discharge lamp; a first control loop with a first reference variable, a first manipulated variable and a first controlled variable, the first control loop having a first time constant; a second control loop with a second reference variable, an auxiliary manipulated variable and a second controlled variable, the second control loop having a second time constant; and a strike detection apparatus, which is adapted to detect striking of the discharge lamp and, after detection of the striking to switch over the first and the second control loops from the striking operation mode to the continuous operation mode. The auxiliary manipulated variable of the second control loop represents the first reference variable of the first control loop, the first time constant being smaller than the second time constant by at least a factor of 10, and the first manipulated variable represents the duty factor of the output signal of the inverter.
摘要翻译：一种用于撞击放电灯的电路装置，包括：驱动装置，具有适于提供具有可预定频率的驱动信号的输出; 反相器，其耦合到驱动装置的输出端，并且具有适于向方波信号提供可预定占空系数的输出端; 负载电路，其耦合到所述逆变器的输出并且具有用于所述放电灯的至少一个端子，所述负载电路包括灯电感器，所述灯电感器串联耦合在所述逆变器的输出端与所述至少一个端子之间，放电灯; 具有第一参考变量的第一控制回路，第一操作变量和第一受控变量，所述第一控制回路具有第一时间常数; 具有第二参考变量的第二控制回路，辅助操纵变量和第二受控变量，所述第二控制回路具有第二时间常数; 以及触发检测装置，其适于检测放电灯的触发，并且在检测到所述第一和第二控制环从所述打击操作模式切换到所述连续操作模式之后。第二控制回路的辅助操作变量表示第一控制回路的第一参考变量，第一时间常数小于第二时间常数至少10倍，第一操作变量表示第一控制回路的占空系数输出信号。

4. 发明申请

US20110298388A1 LIGHT DRIVER CIRCUIT DEVICE AND BACKLIGHT DEVICE 有权
标题翻译：光驱电路和背灯装置
公开(公告)号：US20110298388A1
公开(公告)日：2011-12-08
申请号：US13211343
申请日：2011-08-17
申请人： Cheng-Neng Liao , Chia-Hung Sun , Huang-Ti Lin , Chin-Chuang Chueh
发明人： Cheng-Neng Liao , Chia-Hung Sun , Huang-Ti Lin , Chin-Chuang Chueh
IPC分类号： H05B41/16
CPC分类号： H05B41/282 , Y02B20/183
摘要： A light driver circuit device for synchronously driving a plurality of cold cathode fluorescent lamps (CCFLs) is provided. The light driver circuit device includes an inverter circuit board and a balance circuit board. The inverter circuit board has an inverter circuit coupled to a driving signal for outputting a driving voltage to drive the CCFLs synchronously. The balance circuit board and the inverter circuit board are installed separately, and the balance circuit board has a balance circuit coupled to a terminal of each CCFL and the inverter circuit. The CCFL driving architecture is designed to install the inverter circuit and the balance circuit individually, thus effectively reducing the space of the driving circuit and the total cost of the circuit design. Furthermore, the balance circuit board can balance the current in each CCFL effectively, and there is no limitation to where the balance circuit board can be disposed.
摘要翻译：提供了用于同步驱动多个冷阴极荧光灯（CCFL）的光驱动器电路装置。光驱动电路装置包括逆变器电路板和平衡电路板。逆变器电路板具有与用于输出驱动电压的驱动信号耦合的逆变器电路，以同步驱动CCFL。平衡电路板和逆变器电路板分别安装，平衡电路板具有耦合到每个CCFL的端子和逆变器电路的平衡电路。 CCFL驱动架构设计用于单独安装逆变器电路和平衡电路，从而有效减少驱动电路的空间和电路设计的总成本。此外，平衡电路板可以有效地平衡每个CCFL中的电流，并且不限于可以布置平衡电路板的位置。

5. 发明授权

US08054010B2 Display device illuminating device and display device provided with the illuminating device 有权
标题翻译：具有照明装置的显示装置照明装置和显示装置
公开(公告)号：US08054010B2
公开(公告)日：2011-11-08
申请号：US12297495
申请日：2007-03-05
申请人： Yoshiki Takata
发明人： Yoshiki Takata
IPC分类号： H05B37/00 , H01J11/00 , H01J1/88
CPC分类号： H05B41/282 , G02F1/133604 , Y02B20/183
摘要： An illuminating device for a display device includes a tube lamp which can be driven in parallel by power supplied from a power supply device through a first power supply member and a second power supply member; the first power supply member; and the second power supply member. The illuminating device is provided with illuminating sections whose equivalent circuit is a serially connected body having capacitors connected to the both ends of a negative resistance. The illuminating sections are driven in parallel by separating them into two systems. A voltage to be applied to the left end of the illuminating sections which belong to the first system, and a voltage to be applied to the left end of the illuminating sections which belong to the second system are permitted to be in opposite phases, and a voltage to be applied to the right end of the illuminating sections which belong to the first system and a voltage to be applied to the right end of the illuminating sections which belong to the second system are permitted to be in opposite phases. Thus, display noise of the display device can be reduced.
摘要翻译：一种用于显示装置的照明装置，包括：管灯，其能够通过第一供电部件和第二供电部件从电源装置供给的电力并联驱动; 第一供电构件; 和第二电源部件。照明装置设有照明部，其等效电路是串联连接体，其具有连接到负电阻的两端的电容器。通过将照明部分分成两个系统来驱动照明部分。施加到属于第一系统的照明部分的左端的电压和施加到属于第二系统的照明部分的左端的电压被允许处于相反的相位，并且施加到属于第一系统的照明部分的右端的电压和施加到属于第二系统的照明部分的右端的电压被允许处于相反的相位。因此，可以降低显示装置的显示噪声。

6. 发明授权

US07911463B2 Power supply topologies for inverter operations and power factor correction operations 失效
标题翻译：变频器运行和功率因数校正操作的电源拓扑
公开(公告)号：US07911463B2
公开(公告)日：2011-03-22
申请号：US11216912
申请日：2005-08-31
申请人： Yung-Lin Lin , Da Liu
发明人： Yung-Lin Lin , Da Liu
IPC分类号： G09G5/00
CPC分类号： H02M1/42 , H05B41/282 , Y02B20/183 , Y02B70/12
摘要： A method according to one embodiment may include generating, by a controller, a plurality of control signals to control operations of inverter circuitry to generate an AC signal from a DC signal. The method of this embodiment may also include using the control signals generated by the controller to also control operations of power factor correction (PFC) circuitry, via the inverter circuitry, to enable the PFC circuitry to generate power factor correction of an input source coupled to the PFC circuitry and the inverter circuitry. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
摘要翻译：根据一个实施例的方法可以包括由控制器产生多个控制信号以控制逆变器电路的操作以从DC信号产生AC信号。该实施例的方法还可以包括使用由控制器产生的控制信号也经由逆变器电路来控制功率因数校正（PFC）电路的操作，以使PFC电路能够产生耦合到 PFC电路和逆变器电路。当然，在不偏离本实施例的情况下，可以进行许多替代，变化和修改。

7. 发明授权

US07876058B2 Systems and methods for backlighting image displays 有权
标题翻译：用于背光照明显示的系统和方法
公开(公告)号：US07876058B2
公开(公告)日：2011-01-25
申请号：US11821560
申请日：2007-06-22
申请人： Erin L. Price , Asim M. Siddiqui , James A. Yasukawa
发明人： Erin L. Price , Asim M. Siddiqui , James A. Yasukawa
IPC分类号： H05B37/02 , G09G3/10
CPC分类号： H05B41/282 , Y02B20/183
摘要： Systems and methods for backlighting an image display by independently driving multiple backlights for the display. The display may be, for example, a LCD display panel of a portable information handling system such as a battery-powered notebook computer that employs two or more cold cathode fluorescent lamps (CCFLs) for backlighting the LCD display. The multiple backlights may be independently driven, for example, using a common inverter that is capable of independently driving two or more backlight lamps, or by driving each backlight lamp with a separate inverter.
摘要翻译：通过独立驱动显示器的多个背光照明图像显示器的系统和方法。显示器可以是例如使用两个或更多个冷阴极荧光灯（CCFL）来背光LCD显示器的诸如电池供电的笔记本电脑的便携式信息处理系统的LCD显示面板。多个背光源可以被独立地驱动，例如使用能够独立地驱动两个或更多个背光灯的公共逆变器，或者通过用单独的反相器驱动每个背光灯。

8. 发明授权

US07852013B2 Electronic stabilizer circuit for suppressing startup instabilities in cold cathode fluorescent lamps 失效
标题翻译：用于抑制冷阴极荧光灯启动不稳定性的电子稳定器电路
公开(公告)号：US07852013B2
公开(公告)日：2010-12-14
申请号：US12004528
申请日：2007-12-21
申请人： Robert Weger
发明人： Robert Weger
IPC分类号： H05B37/00
CPC分类号： H05B41/282 , Y02B20/183
摘要： According to the present invention an electronic stabilizer circuit for suppressing startup instabilities when supplying a cold cathode fluorescent lamp with current is proposed which is connected in series with a power supply line of the cold cathode fluorescent lamp. The stabilizer circuit has variable impedance which is automatically adjusted depending on the magnitude of the lamp current thus limiting the lamp current to a certain current threshold.
摘要翻译：根据本发明，提出了一种用于在向冷阴极荧光灯的电源线串联连接的情况下抑制供给冷阴极荧光灯时的启动不稳定性的电子稳定器电路。稳定器电路具有可变阻抗，其根据灯电流的大小自动调节，从而将灯电流限制到一定电流阈值。

9. 发明申请

US20100181927A1 MULTI-LAMP DRIVING CIRCUIT 审中-公开
标题翻译：多灯驱动电路
公开(公告)号：US20100181927A1
公开(公告)日：2010-07-22
申请号：US12618903
申请日：2009-11-16
申请人： CHI-HSIUNG LEE , CHIH-CHANG CHANG , YING-HUNG LIU
发明人： CHI-HSIUNG LEE , CHIH-CHANG CHANG , YING-HUNG LIU
IPC分类号： H05B41/16
CPC分类号： H05B41/282 , Y02B20/183
摘要： A multi-lamp driving circuit includes a power supply, a booster converter including a first winding and a second winding, a plurality of current balance circuits and a plurality of balance converters. The first winding of the booster converter is coupled to the power supply. Each of the current balance circuits includes a plurality of current balance sub-circuits each including a capacitor and a lamp connected in series. One end of each of the current balance sub-circuits is connected to one end of the second winding of the booster converter. A first winding of each of the balance converters is electrically connected between the other end of the second winding of the booster converter and the other end of the current balance sub-circuits of corresponding current balance circuits. Second windings of the balance converters are connected in series.
摘要翻译：多灯驱动电路包括电源，包括第一绕组和第二绕组的升压转换器，多个电流平衡电路和多个平衡转换器。升压转换器的第一绕组耦合到电源。每个电流平衡电路包括多个电流平衡子电路，每个子电路包括串联连接的电容器和灯。每个电流平衡子电路的一端连接到升压转换器的第二绕组的一端。每个平衡转换器的第一绕组电连接在升压转换器的第二绕组的另一端和相应的电流平衡电路的电流平衡子电路的另一端之间。平衡转换器的第二绕组串联连接。

10. 发明授权

US07737644B2 Backlight control circuit with feedback circuit 有权
标题翻译：带反馈电路的背光控制电路
公开(公告)号：US07737644B2
公开(公告)日：2010-06-15
申请号：US11824884
申请日：2007-07-02
申请人： Jian-Hui Lu , Tong Zhou , He-Kang Zhou
发明人： Jian-Hui Lu , Tong Zhou , He-Kang Zhou
IPC分类号： G05F1/00
CPC分类号： H05B41/282 , H05B41/2855 , Y02B20/183 , Y02B20/186
摘要： An exemplary backlight control circuit (20) includes at least two sampling circuits (21), at least two feedback circuits (22), and a PWM IC (23). Each of the sampling circuits includes a sampling output (210) and a backlight lamp (211). The PWM IC includes a current sense pin (230). The at least two feedback circuits correspond to the at least two sampling circuits, respectively. Each of the feedback circuits includes a resistor (222) and a diode (223) electrically coupled in parallel. The sampling output is configured to output a first voltage when the backlight lamp is in a normal working state, and output a second voltage when the backlight lamp has an open circuit. One terminal of the diode is electrically coupled to the sampling output of a corresponding one of the sampling circuits, and an opposite terminal of the diode is electrically coupled to the current sense pin.
摘要翻译：示例性背光控制电路（20）包括至少两个采样电路（21），至少两个反馈电路（22）和PWM IC（23）。每个采样电路包括采样输出（210）和背光灯（211）。 PWM IC包括电流检测引脚（230）。至少两个反馈电路分别对应于至少两个采样电路。每个反馈电路包括并联电耦合的电阻器（222）和二极管（223）。采样输出被配置为当背光灯处于正常工作状态时输出第一电压，并且当背光灯具有开路时输出第二电压。二极管的一个端子电耦合到对应的一个采样电路的采样输出，并且二极管的相对端子电耦合到电流检测引脚。

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