公开(公告)号：US09709881B2

公开(公告)日：2017-07-18

申请号：US14511722

申请日：2014-10-10

Applicant: SEIKO EPSON CORPORATION

Inventor： Tetsuo Terashima ,  Osamu Saito ,  Takeshi Nakajima

IPC: H05B37/02 ,  G03B21/20 ,  H05B41/288 ,  H05B41/28 ,  H05B41/38

CPC classification number: G03B21/2053 ,  H05B41/28 ,  H05B41/2883 ,  H05B41/386

Abstract: A discharge lamp lighting device according to an aspect of the invention includes a resonance circuit unit connected to a discharge lamp, a power converting unit configured to convert direct-current power into alternating-current power and supply the alternating-current power to the discharge lamp via the resonance circuit unit, and a control unit configured to supply the alternating-current power having a first frequency for causing resonance of the resonance circuit unit and a second frequency different from the first frequency, to the discharge lamp in a lighting start period from a start of lighting of the discharge lamp to a steady lighting state of the discharge. The second frequency is equal to or higher than 100 kHz.

公开(公告)号：US20150195894A1

公开(公告)日：2015-07-09

申请号：US14413296

申请日：2012-07-17

Applicant: Zhu Mao

Inventor： Zhu Mao

IPC: H05B41/295 ,  H05B41/38

CPC classification number: H05B41/295 ,  H05B41/2985 ,  H05B41/386

Abstract: A relamping circuit topology to provide a lamping signal in ballast circuits used to power heated filament gas discharge lamps. The relamping circuit includes a low level DC power source, a differential capacitance and a switching device coupled to the differential capacitance. The differential capacitance is configured to produce a relamping signal. The relamping circuit topology also includes an electric current path configured to direct a flow of direct current from the low level DC power supply through a filament of the gas discharge lamp, and to the differential capacitance such that breaking and restoring the electric current path activates the relamping signal.

Abstract translation: 一种增压电路拓扑，用于在用于对加热的灯丝气体放电灯供电的镇流器电路中提供抑制信号。 所述增压电路包括低电平直流电源，差分电容和耦合到所述差分电容的开关器件。 差分电容被配置为产生再生信号。 再现电路拓扑还包括电流通道，其被配置为引导来自低电平直流电源的直流电流通过气体放电灯的细丝，并且引导到差分电容，使得断开和恢复电流路径激活 更新信号。

公开(公告)号：US20130221849A1

公开(公告)日：2013-08-29

申请号：US13860615

申请日：2013-04-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Csaba KORONYA ,  Péter LUCZ ,  Gábor Szabó ,  János Gergely KÁLLAY ,  Dániel Gábor CSIKI

IPC: H01J61/52

CPC classification number: H01J61/523 ,  H01J61/28 ,  H01J61/327 ,  H01J61/44 ,  H01J61/46 ,  H05B41/386 ,  Y02B20/19

Abstract: A discharge lamp having an improved run-up time is disclosed. In an embodiment, the discharge lamp includes a light-transmissive discharge tube extending from a first end to a second end and having an inner surface and an outer surface, a phosphor coating layered onto the inner surface of the discharge tube, and a fill gas composition capable of sustaining a discharge sealed within the discharge tube. Also included is a resistive heating wire positioned about the outer surface of the discharge tube. In some embodiments, a lamp driver circuit is included that operates when the lamp is turned ON to provide power to electrodes in the discharge tube and to provide power to the resistive heating wire, and operates to disconnect power from the resistive heating wire when the discharge lamp achieves a predetermined percentage of its stabilized lumen output.

Abstract translation: 公开了一种具有改善的启动时间的放电灯。 在一个实施例中，放电灯包括从第一端延伸到第二端并具有内表面和外表面的透光放电管，层叠在放电管的内表面上的荧光体涂层和填充气体 可以在放电管内保持放电密封的组合物。 还包括围绕放电管的外表面定位的电阻加热线。 在一些实施例中，包括灯驱动器电路，其在灯被接通时操作以向放电管中的电极提供电力，并且向电阻加热线提供电力，并且当放电时电力从电阻加热线断开 灯达到其稳定的流明输出的预定百分比。

公开(公告)号：US20110074295A1

公开(公告)日：2011-03-31

申请号：US12994479

申请日：2009-05-21

Applicant: Toshifumi Tanaka

Inventor： Toshifumi Tanaka

IPC: B60Q1/04 ,  H05B41/36 ,  B60Q1/14

CPC classification number: H05B41/386 ,  H05B41/2882 ,  Y02B20/204

Abstract: A discharge lamp lighting device is realized, which enables scale and cost reductions thereof, and is capable of reducing a flash at a starting time of the discharge lamp, suppressing a feeling of wrongness at a time of raising a luminous flux, and easily suppressing variations among a plurality of the discharge lamps. The discharge lamp lighting device includes: a lighting circuit unit that receives a direct current voltage, and converts the direct current voltage into an output required by a discharge lamp; and a control unit that receives detection values of a discharge lamp voltage and a discharge lamp current, and controls the lighting circuit unit to achieve a predetermined target power value, in which, after the discharge lamp is started, the control unit controls the predetermined target power value to be reduced from an output power value larger than a rated power value to the rated power value for several seconds to several ten seconds, wherein the control unit sets a target power value after the discharge lamp is started at a first output power value larger than the rated power value, and increases the target power value toward a second output power value as a maximum output power value for a first predetermined time after the discharge lamp is started.

Abstract translation: 实现了放电灯点亮装置，能够进行规模化和降低成本，并且能够在放电灯的起动时间减少闪光，抑制在提高光通量时的错误感，并且容易抑制变化 在多个放电灯中。 放电灯点亮装置包括：点亮电路单元，其接收直流电压，并将直流电压转换为放电灯所需的输出; 以及控制单元，其接收放电灯电压和放电灯电流的检测值，并且控制点亮电路单元以实现预定的目标功率值，其中在放电灯启动之后，控制单元控制预定目标 功率值从大于额定功率值的输出功率值减小到额定功率值几秒至几十秒，其中所述控制单元在所述放电灯以第一输出功率值启动之后设定目标功率值 大于额定功率值，并且在放电灯起动之后的第一预定时间内将目标功率值朝着第二输出功率值提高为最大输出功率值。

公开(公告)号：USRE42141E1

公开(公告)日：2011-02-15

申请号：US11699569

申请日：2007-01-30

Applicant: Noboru Yamamoto ,  Yukio Kunieda

Inventor： Noboru Yamamoto ,  Yukio Kunieda

IPC: H05B37/00

CPC classification number: H05B41/386 ,  H05B41/2883

Abstract: An electric discharge lamp device has a lighting start voltage storage circuit for storing a lamp voltage immediately after the start of lighting of a lamp, and a change detection circuit for detecting a change in the lamp voltage by subtracting the lamp voltage immediately after the start of lighting of the lamp from the lamp voltage detected currently. The electric power supplied to the lamp is controlled based upon the change in the lamp voltage.

Abstract translation: 放电灯装置具有用于存储灯开始后的灯电压的点亮开始电压存储电路，以及变更检测电路，用于通过在开始后立即减去灯电压来检测灯电压的变化 目前灯具电压从灯电压检测到。 基于灯电压的变化来控制提供给灯的电力。

公开(公告)号：US07511434B2

公开(公告)日：2009-03-31

申请号：US11325034

申请日：2006-01-03

Applicant: Chung-hyuk Shin

Inventor： Chung-hyuk Shin

IPC: G05F1/00

CPC classification number: H05B41/2822 ,  H05B41/382 ,  H05B41/386

Abstract: A lamp driving apparatus includes a lamp driving power system providing a driving power to a lamp, a sensor detecting whether the lamp is turned on, and a controller controlling the lamp driving power system to provide an initial driving power to the lamp to turn on the lamp, and to provide an excess driving power to the lamp if the sensor detects that the lamp is not turned on, the excess driving power having a higher voltage level than the initial driving power. A liquid crystal display includes the lamp driving apparatus and a driving method thereof includes a lamp that is stably driven at an initial stage of operation.

Abstract translation: 灯驱动装置包括向灯提供驱动电力的灯驱动电力系统，检测灯是否被接通的传感器，以及控制灯驱动电力系统以向灯提供初始驱动电力的控制器，以接通 并且如果传感器检测到灯未被接通，则过大的驱动功率具有比初始驱动功率更高的电压电平，以向灯提供过量的驱动电力。 液晶显示器包括灯驱动装置，其驱动方法包括在初始操作阶段被稳定地驱动的灯。

公开(公告)号：US07439691B2

公开(公告)日：2008-10-21

申请号：US11743464

申请日：2007-05-02

Applicant: Katsumi Sugaya ,  Izumi Takaya ,  Tomoyoshi Arimoto

Inventor： Katsumi Sugaya ,  Izumi Takaya ,  Tomoyoshi Arimoto

IPC: H05B37/02

CPC classification number: H05B41/386 ,  Y02B20/204

Abstract: To shorten the luminous flux rise time and prevent melting/deformation of the projections in the initial ignition period of high pressure discharge lamps that have a sealed mercury volume of no less than 0.20 mg/mm3, a power supply device feeds a current that exceeds the maximum current value of the constant power control period to the high pressure discharge lamp during a first control period from the initial discharge until the lamp voltage reaches a specified lamp voltage and causes a switch to constant power control, and then, during the following period until a change to steady power control, the power supply device feeds it a current that is less than the maximum current during regular operation.

Abstract translation: 为了缩短光通量上升时间并防止在密封汞容积不小于0.20mg / mm 3的高压放电灯的初始点火期间的突起熔化/变形，功率 供给装置在从初始放电到灯电压达到规定的灯电压的第一控制期间内将超过恒定功率控制期间的最大电流值的电流馈送到高压放电灯，并使开关恒定功率控制， 然后，在随后的一段时间内，直到稳定的功率控制发生变化，供电装置在正常运行期间向其馈送小于最大电流的电流。

公开(公告)号：US07391172B2

公开(公告)日：2008-06-24

申请号：US11679046

申请日：2007-02-26

Applicant: Bruce R. Ferguson ,  George C. Henry ,  Roger Holliday

Inventor： Bruce R. Ferguson ,  George C. Henry ,  Roger Holliday

IPC: H05B37/02 ,  G09G3/36

CPC classification number: H05B41/2858 ,  G09G3/3406 ,  G09G2320/041 ,  G09G2320/062 ,  H05B41/2856 ,  H05B41/386 ,  H05B41/3922

Abstract: An illumination control circuit allows a user to set a desired brightness level and maintains the desired brightness level over temperature and life of a light source. The illumination control circuit uses a dual feedback loop with both optical and thermal feedbacks. The optical feedback loop controls power to the light source during normal operations. The thermal feedback loop overrides the optical feedback loop when the temperature of the light source becomes excessive.

Abstract translation: 照明控制电路允许用户设定期望的亮度水平并且保持在光源的温度和寿命之上所需的亮度水平。 照明控制电路使用具有光学和热反馈的双反馈环路。 光学反馈环路在正常操作期间控制光源的电力。 当光源的温度过高时，热反馈环路将覆盖光学反馈回路。

公开(公告)号：US07385361B2

公开(公告)日：2008-06-10

申请号：US10556382

申请日：2004-05-12

Applicant: Toshiyuki Noguchi ,  Yasuhiro Kakimoto

Inventor： Toshiyuki Noguchi ,  Yasuhiro Kakimoto

IPC: G05F1/00

CPC classification number: H05B41/382 ,  H05B41/2882 ,  H05B41/2883 ,  H05B41/2885 ,  H05B41/386 ,  H05B41/388 ,  Y02B20/202 ,  Y02B20/204 ,  Y10S315/02 ,  Y10S315/05 ,  Y10S315/07

Abstract: An operating device control section (4) controls an output current of a DC-DC converter (1), and also controls a commutation frequency of a commutator (2) that converts a direct current output from the DC-DC converter into an alternating current. The operating device control section operates a discharge lamp, at the start of lamp operation, with a predetermined voltage value lower than a rated voltage and a first target current value higher than a rated current, then, at an end of a predetermined high frequency start period (T1) elapsed from the start of lamp operation, controls the commutator to switch from a commutation frequency higher than that during a steady lamp operation to a commutation frequency during the steady lamp operation, and then, after a voltage applied to the discharge lamp increases and reaches a voltage not lower than a predetermined threshold voltage (Vth) which is not higher than the rated voltage, controls the DC-DC converter to switch from the first target current value to a second target current value which is not higher than the rated current to operate the discharge lamp. A temperature of a lamp electrode can be increased quickly and sufficiently to reduce a time required to increase the lamp illuminance, thereby reducing a time required to cause video to be viewable.

Abstract translation: 操作装置控制部分（4）控制DC-DC转换器（1）的输出电流，并且还控制将从DC-DC转换器输出的直流电转换成交流电的换向器（2）的换向频率 。 操作装置控制部分在灯操作开始时以比额定电压低的额定电压和第一目标电流值的预定电压值操作放电灯，然后在预定的高频启动结束时 从灯操作开始经过的时间段（T 1），在稳定的灯操作期间，控制换向器从稳定的灯操作期间的换流频率切换到换向频率，然后在施加到放电的电压 灯增加并达到不低于额定电压的预定阈值电压（Vth）的电压，控制DC-DC转换器从第一目标电流值切换到不高于 额定电流来操作放电灯。 可以快速且充分地增加灯电极的温度，以减少增加灯照度所需的时间，从而减少使视频可见的时间。

公开(公告)号：US07208886B2

公开(公告)日：2007-04-24

申请号：US11163433

申请日：2005-10-19

Applicant: Kuan-Hong Hsieh ,  Wei-De Bao

Inventor： Kuan-Hong Hsieh ,  Wei-De Bao

IPC: H05B37/02 ,  H05B41/36

CPC classification number: H05B41/382 ,  H05B41/282 ,  H05B41/386

Abstract: A starting voltage adjustment circuit (70), which can vary starting voltages to CCFLs (40) according to variations in the temperature of the immediate environment, is employed in an apparatus for driving CCFLs. The starting voltage adjustment circuit includes a zener diode (710), a thermal resistor (720), and a voltage dividing resistor (730) connected in series between a buck converter, a resonant boost converter, and ground. The starting voltage adjustment circuit also includes a control chip (740) which includes pins, of which one is connected between the thermal resistor and the voltage dividing resistor and outputs a constant voltage, and another is connected between the voltage dividing resistor and ground. The thermal resistor has a voltage drop thereacross varying with the temperature. The starting voltage adjustment circuit adjusts an input voltage to the resonant boost converter, thereby adjusting the starting voltage to the CCFLs according to variations in temperature.

Abstract translation: 在用于驱动CCFL的装置中采用起动电压调节电路（70），该启动电压调节电路（70）可根据直接环境的温度变化而将启动电压改变为CCFL（40）。 启动电压调节电路包括串联连接在降压转换器，谐振升压转换器和地之间的齐纳二极管（710），热电阻器（720）和分压电阻器（730）。 启动电压调整电路还包括控制芯片（740），其包括引脚，其中一个连接在热电阻器和分压电阻器之间并输出恒定电压，另一个连接在分压电阻器和地之间。 热敏电阻具有随温度变化的电压降。 启动电压调节电路调节到谐振升压转换器的输入电压，从而根据温度变化调节CCFL的启动电压。