Projector lamp lighting device supplying AC current including low frequency region having current reduction waveform
    101.
    发明授权
    Projector lamp lighting device supplying AC current including low frequency region having current reduction waveform 有权
    提供包括具有电流还原波形的低频区域的交流电的投影仪灯照明装置

    公开(公告)号:US08474985B2

    公开(公告)日:2013-07-02

    申请号:US12910923

    申请日:2010-10-25

    Applicant: Akira Ueda

    Inventor: Akira Ueda

    CPC classification number: H05B41/2885 H04N9/3155

    Abstract: A discharge lamp lighting device includes a lamp current control portion that generates, in synchronization with an input video signal, a control signal for controlling polarity reversal of an AC current with a steady-state lighting frequency and an AC current with a low frequency, and a lamp driving portion that drives the discharge lamp based on the control signal that is output by the lamp current control portion. The lamp current control portion generates a control signal for a brightness reduction waveform with timing corresponding to polarity reversal of the AC current with the steady-state lighting frequency, and the lamp driving portion inserts a current reduction waveform into the AC current with the low frequency by decreasing a voltage applied to the discharge lamp based on the control signal for the brightness reduction waveform. It is possible to reduce flicker that could be perceived due to insertion of a period without a reduction of the projection light amount (a period without a polarity reversal at the low frequency) during repeated reductions of the projection light amount occurring at intervals of polarity reversal of the steady-state lighting frequency.

    Abstract translation: 放电灯点亮装置包括灯电流控制部分,其与输入视频信号同步地产生用于控制具有稳态点亮频率和低频的交流电流的交流电流的极性反转的控制信号,以及 灯驱动部,其基于由灯电流控制部输出的控制信号驱动放电灯。 灯电流控制部分产生用于具有与具有稳态点亮频率的AC电流的极性反转相对应的定时的亮度降低波形的控制信号,并且灯驱动部分将电流减小波形插入到具有低频率的AC电流中 通过基于用于亮度降低波形的控制信号减小施加到放电灯的电压。 在反复减少以极性反转的间隔发生的投影光量的情况下,可以减少由于插入一段时间而不会减少投影光量(在低频时没有极性反转的周期)的闪烁。 的稳态照明频率。

    Fluorescent lamp dimmer with multi-function integrated circuit
    102.
    发明授权
    Fluorescent lamp dimmer with multi-function integrated circuit 有权
    荧光灯调光器具有多功能集成电路

    公开(公告)号:US08358078B2

    公开(公告)日:2013-01-22

    申请号:US12242303

    申请日:2008-09-30

    Inventor: David Natarelli

    CPC classification number: H05B41/3925 H05B41/28

    Abstract: In one embodiment, a fluorescent lamp dimming circuit includes power factor correction control, dimming control, and switching devices. The power factor correction control may be connected to power factor correction circuitry that produces a regulated DC buss. The dimming control circuit may be connected to the input of the fluorescent lamp dimming circuit for producing a driver signal whose frequency varies depending on the input voltage waveform perhaps as modified by a dimmer. The control circuit may produce a drive signal with a duty cycle profile to drive switching devices. The switching devices invert the DC buss voltage to an AC voltage waveform for driving a resonant tank circuit. The resonant tank circuit may include an inductance, a capacitance, and the impedance of a fluorescent lamp. The AC voltage waveform when applied to the resonant tank circuit may cause the fluorescent lamp to dim based on the dimmer setting.

    Abstract translation: 在一个实施例中,荧光灯调光电路包括功率因数校正控制,调光控制和开关装置。 功率因数校正控制可以连接到产生调节DC总线的功率因数校正电路。 调光控制电路可以连接到荧光灯调光电路的输入端,用于产生频率根据输入电压波形而变化的驱动器信号,或许可以通过调光器修改。 控制电路可以产生具有占空比轮廓的驱动信号以驱动开关装置。 开关器件将DC总线电压反相到用于驱动谐振回路的交流电压波形。 谐振回路可以包括电感,电容和荧光灯的阻抗。 施加到谐振回路的交流电压波形可能导致荧光灯根据调光器设置变暗。

    Liquid crystal display device and method of reducing a discharge time of a liquid crystal capacitor thereof
    103.
    发明授权
    Liquid crystal display device and method of reducing a discharge time of a liquid crystal capacitor thereof 有权
    液晶显示装置及其液晶电容器的放电时间减少的方法

    公开(公告)号:US07944440B2

    公开(公告)日:2011-05-17

    申请号:US11943193

    申请日:2007-11-20

    Applicant: Sang-Heon Park

    Inventor: Sang-Heon Park

    Abstract: A liquid crystal display device includes: a power supply unit which outputs a supply voltage at a first level when an outside power is supplied and outputs the supply voltage at a second level when the outside power is removed; a discharge unit which outputs a discharge signal when the supply voltage at the second level is input; and a liquid crystal panel including a gate discharge line, a plurality of gate lines connected to the gate discharge line, a plurality of thin film transistors connected to the plurality of gate lines, and a plurality of liquid crystal capacitors connected to the thin film transistors and which charges to a gradation display voltage. The thin film transistor is turned on to discharge the gradation display voltage charged in the plurality of liquid crystal capacitors when the discharge signal is provided to the gate discharge line.

    Abstract translation: 液晶显示装置包括:电源单元,其在外部电力供给时输出第一电平的电源电压,并且在外部电力被去除时将电源电压输出为第二电平; 当输入第二电平的电源电压时,输出放电信号的放电单元; 以及液晶面板,包括栅极放电线,连接到栅极放电线的多条栅极线,连接到多条栅极线的多个薄膜晶体管和连接到薄膜晶体管的多个液晶电容器 并将其充电到灰度显示电压。 当放电信号提供给栅极放电线时,薄膜晶体管导通以放电充电在多个液晶电容器中的灰度显示电压。

    Method and circuit arrangement for operating a discharge lamp
    104.
    发明授权
    Method and circuit arrangement for operating a discharge lamp 失效
    用于操作放电灯的方法和电路装置

    公开(公告)号:US07714522B2

    公开(公告)日:2010-05-11

    申请号:US11573014

    申请日:2005-08-04

    CPC classification number: H05B41/2928 Y02B20/208

    Abstract: A method and a circuit arrangement operate a discharge lamp, such as a high-intensity discharge lamp (HID) or ultra high performance lamps (UHP). The discharge lamp has first and second operating phases with a higher first or a lower second frequency of the lamp's alternating current (AC). The operating phases are activated alternatively at defined intervals and for defined periods of time, in order to achieve a stable arc discharge and only a low burnout or rise in burning voltage of the lamp during its life by configuring certain forms of electrode tips.

    Abstract translation: 一种方法和电路装置操作诸如高强度放电灯(HID)或超高性能灯(UHP)的放电灯。 放电灯具有第一和第二工作阶段,灯的交流电(AC)具有较高的第一或更低的第二频率。 操作阶段以限定的间隔和限定的时间段被激活,以便通过配置某些形式的电极尖端来实现稳定的电弧放电,并且在其寿命期间仅仅是低的烧坏或灯的燃烧电压的上升。

    Boron Nitride Thin-Film Emitter and Production Method Thereof, and Electron Emitting Method Using Boron Nitride Thin-Film Emitter
    106.
    发明申请
    Boron Nitride Thin-Film Emitter and Production Method Thereof, and Electron Emitting Method Using Boron Nitride Thin-Film Emitter 失效
    氮化硼薄膜发射体及其制造方法以及使用氮化硼薄膜发射体的电子发射方法

    公开(公告)号:US20080030152A1

    公开(公告)日:2008-02-07

    申请号:US11665250

    申请日:2005-12-21

    CPC classification number: H01J9/025 H01J1/304 H01J2201/30446

    Abstract: Based on designs concerning boron nitride thin-films each including boron nitride crystals in acute-ended shapes excellent in field electron emission properties, and designs of emitters adopting such thin-films, it is aimed at appropriately controlling a distribution state of such crystals to thereby provide an emitter having an excellent efficiency and thus requiring only a lower threshold electric field for electron emission. In a design of a boron nitride thin-film emitter comprising crystals that are each represented by a general formula BN, that each include sp3 bonded boron nitride, sp2 bonded boron nitride, or a mixture thereof, and that each exhibit an acute-ended shape excellent in field electron emission property; there is controlled an angle of a substrate relative to a reaction gas flow upon deposition of the emitter from a vapor phase, thereby controlling a distribution state of the crystals over a surface of the thin-film.

    Abstract translation: 基于关于氮化硼薄膜的设计,每个氮化硼薄膜包括场致发射性能优异的急端形状的氮化硼晶体,以及采用这种薄膜的发射体的设计,旨在适当地控制这种晶体的分布状态 提供具有优异效率的发射极,因此仅需要较低的电子发射阈值电场。 在包含各自由通式BN表示的晶体的氮化硼薄膜发射体的设计中,每一个都包括结合氮化硼的sp 3+,sp 2+结合的硼 氮化物或其混合物,并且各自表现出场电子发射性优异的锐端形状; 当从气相沉积发射体时,控制衬底相对于反应气体流的角度,从而控制晶体在薄膜表面上的分布状态。

    Inductively powered secondary assembly
    107.
    发明申请
    Inductively powered secondary assembly 有权
    电感二次组装

    公开(公告)号:US20070205730A1

    公开(公告)日:2007-09-06

    申请号:US11558684

    申请日:2006-11-10

    Applicant: David Baarman

    Inventor: David Baarman

    Abstract: A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.

    Abstract translation: 配置成从初级线圈感应地接收电力的灯组件。 灯组件包括灯电路,其包括串联连接的次级灯和灯。 在第一方面,灯电路包括与灯和二极管串联连接的电容器,以将电路调谐到谐振。 电容器优选地选择为具有基本上等于或略小于次级电抗和灯的阻抗的电抗。 在第二方面,灯组件包括密封的透明套筒,其完全包围灯电路,使得透明套管完全关闭且不被穿透。 透明套筒优选地是灯套筒本身,其中二次电容器和电容器以及任何期望的启动器机构设置在其内部。

    Pulse width modulated defroster
    108.
    发明申请
    Pulse width modulated defroster 有权
    脉宽调制除霜器

    公开(公告)号:US20060186835A1

    公开(公告)日:2006-08-24

    申请号:US11327594

    申请日:2006-01-06

    CPC classification number: H05B3/84 H05B1/0236 H05B2203/035

    Abstract: A window defroster system that includes a heater grid and a controller. The controller includes a pulse width modulator configured to provide a driving signal to the heater grid. The driving signal has an initial heating portion and a pulsed portion. The initial heating portion provides an initial voltage that is greater than an optimal operating voltage of the heater grid, the pulsed portion provides a pulsed signal with a pulsed high voltage that is greater than the optimal operating voltage.

    Abstract translation: 一个窗户除霜系统,包括加热器网格和控制器。 控制器包括被配置为向加热器网格提供驱动信号的脉冲宽度调制器。 驱动信号具有初始加热部分和脉冲部分。 初始加热部分提供大于加热器网格的最佳工作电压的初始电压,脉冲部分提供具有大于最佳工作电压的脉冲高电压的脉冲信号。

    Multi-gap high impedance plasma opening switch
    110.
    发明授权
    Multi-gap high impedance plasma opening switch 失效
    多间隙高阻抗等离子体开关

    公开(公告)号:US5568019A

    公开(公告)日:1996-10-22

    申请号:US349337

    申请日:1994-12-05

    Inventor: Rodney J. Mason

    CPC classification number: H01J17/44 H01T2/00

    Abstract: A high impedance plasma opening switch having an anode and a cathode and at least one additional electrode placed between the anode and cathode. The presence of the additional electrodes leads to the creation of additional plasma gaps which are in series, increasing the net impedance of the switch. An equivalent effect can be obtained by using two or more conventional plasma switches with their plasma gaps wired in series. Higher impedance switches can provide high current and voltage to higher impedance loads such as plasma radiation sources.

    Abstract translation: 具有阳极和阴极的高阻抗等离子体开启开关和放置在阳极和阴极之间的至少一个附加电极。 附加电极的存在导致产生串联的附加等离子体间隙,增加了开关的净阻抗。 通过使用其等离子体间隔串联连接的两个或更多个常规等离子体开关可以获得等效的效果。 较高阻抗的开关可以为诸如等离子体辐射源的较高阻抗负载提供高电流和电压。

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