公开(公告)号：US5990635A

公开(公告)日：1999-11-23

申请号：US102296

申请日：1998-06-22

申请人： Jonathan H. Ference ,  Donald F. Hausman ,  John F. Loar ,  Robert S. Spehalski ,  Walter S. Zaharchuk

发明人： Jonathan H. Ference ,  Donald F. Hausman ,  John F. Loar ,  Robert S. Spehalski ,  Walter S. Zaharchuk

IPC分类号： F21S10/00 ,  H05B37/02 ,  H05B39/08 ,  H02B37/02

CPC分类号： H05B39/086 ,  H05B37/02 ,  H05B37/0254 ,  H05B37/029 ,  H05B39/08 ,  Y10S315/04

摘要： A lighting dimmer for controlling the current through a lighting load includes circuitry for applying a predetermined dimming level control signal to a control circuit in response to the absence of a dimming level control signal and the cycling OFF and ON of a circuit breaker. The dimmer further includes voltage compensation circuitry for maintaining a constant lighting load current notwithstanding short-lived changes in nominal line voltage.

摘要翻译： 用于通过照明负载控制电流的照明调光器包括用于响应于没有调光电平控制信号和断路器的循环断开和接通而将预定调光电平控制信号施加到控制电路的电路。 调光器还包括电压补偿电路，用于维持恒定的照明负载电流，尽管标称线路电压短暂改变。

公开(公告)号：US5925988A

公开(公告)日：1999-07-20

申请号：US52695

申请日：1998-03-31

申请人： Duane A. Grave ,  Richard D. Hanson

发明人： Duane A. Grave ,  Richard D. Hanson

IPC分类号： G02F1/13357 ,  H01J61/067 ,  H01J61/54 ,  H01J61/72 ,  H01J65/04 ,  H05B41/24 ,  H02B37/02

CPC分类号： H05B41/24 ,  H01J61/067 ,  H01J61/54 ,  H01J61/72 ,  H01J65/046 ,  G02F1/1336 ,  H01J61/307

摘要： Disclosed are a backlight and a method of driving the same to provide a uniform low intensity source of light for a liquid crystal display. The fluorescent lamp includes a fluorescent lamp and a drive circuit coupled to the anode and to the cathode of the fluorescent lamp for supplying the fluorescent lamp with a drive current. First and second longitudinally extending substantially transparent conductor members are disposed externally along the length of the lamp. A radio frequency (RF) signal generator connected to each of the first and second longitudinally extending conductor members drives the first and second conductor members with an RF signal to generate a dynamic RF electric field within the glass tube.

摘要翻译： 公开了一种背光源及其驱动方法，以为液晶显示器提供均匀的低强度光源。 荧光灯包括荧光灯和耦合到荧光灯的阳极和阴极的驱动电路，用于向荧光灯提供驱动电流。 第一和第二纵向延伸的基本上透明的导体构件沿着灯的长度设置在外部。 连接到第一和第二纵向延伸的导体构件中的每一个的射频（RF）信号发生器用RF信号驱动第一和第二导体构件，以在玻璃管内产生动态RF电场。

公开(公告)号：US5691605A

公开(公告)日：1997-11-25

申请号：US512868

申请日：1995-08-09

申请人： Yongping Xia ,  Joshua Zhu ,  Sreeraman Venkitasubrahmanian ,  Raj Jayaraman ,  Thomas Farkas

发明人： Yongping Xia ,  Joshua Zhu ,  Sreeraman Venkitasubrahmanian ,  Raj Jayaraman ,  Thomas Farkas

IPC分类号： H05B41/38 ,  H05B37/02 ,  H05B41/285 ,  H05B41/36 ,  H05B41/392 ,  H02B37/02

CPC分类号： H05B41/2855 ,  H05B37/0263 ,  H05B41/2985 ,  H05B41/36 ,  H05B41/3921 ,  H05B41/3924 ,  Y10S315/04

摘要： A lamp controller includes an interface circuit, or receiver, which receives an input signal and decodes control signals supplied from a transmitting device, such as a power line wall controller, according to at least two of the following communication techniques: phase angle control, step control, and coded control. The receiver tests the input signal and identifies which type of control technique is employed by the wall controller connected to the lamp controller. The receiver then decodes the control command from the input signal. In a disclosed embodiment, the lamp controller is gas discharge lamp dimming ballast having a two wire input for connection to the hot dimmed and neutral leads of the power line controller. The ballast has an improved topology in which a pre-conditioner supplies a substantially constant DC voltage to a ballast stage including an inverter, a resonant tank output and a control circuit. The dim signal output by the receiver is independent of the DC rail voltage and, in combination with the maintenance of a substantially constant DC rail voltage, permits of improved dimming control while providing the ease of installation of a two wire ballast.

摘要翻译： 灯控制器包括接口电路或接收器，接口电路或接收器根据以下通信技术中的至少两个接收输入信号和解码从诸如电力线壁控制器的发送设备提供的控制信号：相位角控制，步骤 控制和编码控制。 接收机测试输入信号，并识别连接到灯控制器的墙壁控制器采用哪种类型的控制技术。 然后，接收器从输入信号解码控制命令。 在公开的实施例中，灯控制器是具有两线输入的气体放电灯调光镇流器，用于连接到电力线控制器的热调光和中性线。 镇流器具有改进的拓扑结构，其中预调节器向包括逆变器，谐振回路输出和控制电路的镇流器提供基本上恒定的DC电压。 由接收器输出的暗信号与直流轨道电压无关，并且与基本上恒定的直流轨电压的维持相结合，允许改进的调光控制，同时提供双线镇流器的易于安装。