Ignition scheme for electronic HID ballast
    131.
    发明授权
    Ignition scheme for electronic HID ballast 失效
    电子HID镇流器点火方案

    公开(公告)号:US06504313B1

    公开(公告)日:2003-01-07

    申请号:US09687136

    申请日:2000-10-13

    申请人: Eric Shen

    发明人: Eric Shen

    IPC分类号: H05B3702

    摘要: An improved ignition circuit for a high intensity discharge (HID) lamp is disclosed. The ignition voltage is provided across a single capacitor, and at the end of the ignition phase, a second capacitor is switched into the circuit to divide the voltage across two capacitors, and provide a steady state square wave current and voltage.

    摘要翻译: 公开了一种用于高强度放电(HID)灯的改进的点火电路。 点火电压提供在单个电容器两端,并且在点火阶段结束时,第二个电容器被切换到电路中,以跨越两个电容器分压,并提供稳态方波电流和电压。

    Electronic dimmable ballast for high intensity discharge lamp
    132.
    发明申请
    Electronic dimmable ballast for high intensity discharge lamp 有权
    电子镇流器用于高强度放电灯

    公开(公告)号:US20020153849A1

    公开(公告)日:2002-10-24

    申请号:US10104909

    申请日:2002-03-21

    IPC分类号: H05B041/16

    摘要: A dimmable electronic ballast for an HID lamp includes a rectifier stage for rectifying an AC input and providing a rectified DC output, a power factor correction stage for modifying a power factor of the AC input and for providing an increased voltage DC output from the rectified DC output, an electronic ballast control circuit for providing a driving signal comprising a pulse train for controlling a switching operation of an output switch stage driving the HID lamp; the output switch stage having at least one electronic switching element coupled to the increased voltage DC output for providing a pulsed power signal to the HID lamp to power the lamp, the electronic ballast control circuit having a feedback input comprising a signal related to the power dissipated by the HID lamp for maintaining the power at a desired level, the desired level being set by a dimming control input to the electronic ballast control circuit. The circuit provides high frequency power, typically above 50 kHz, to the HID lamp.

    摘要翻译: 用于HID灯的可调光电子镇流器包括整流级,用于整流AC输入并提供整流DC输出;功率因数校正级,用于修改AC输入的功率因数,并提供来自整流DC的增加的电压DC输出 输出,电子镇流器控制电路,用于提供包括用于控制驱动所述HID灯的输出开关级的开关操作的脉冲串的驱动信号; 输出开关级具有耦合到增加的电压DC输出的至少一个电子开关元件,用于向HID灯提供脉冲功率信号以为灯供电,该电子镇流器控制电路具有反馈输入,该反馈输入包括与功率消耗有关的信号 通过用于将功率保持在期望水平的HID灯,通过对电子镇流器控制电路的调光控制输入来设置期望的电平。 该电路向HID灯提供通常高于50 kHz的高频功率。

    Method and circuit arrangement for operating a sodium high-pressure lamp
    133.
    发明申请
    Method and circuit arrangement for operating a sodium high-pressure lamp 审中-公开
    用于操作钠高压灯的方法和电路装置

    公开(公告)号:US20020149325A1

    公开(公告)日:2002-10-17

    申请号:US10048906

    申请日:2002-02-04

    IPC分类号: H05B039/04

    CPC分类号: H05B41/2887 Y02B20/202

    摘要: Sodium high-pressure lamps can be operated by a circuit arrangement which rectifies the AC line voltage and, dispensing with smoothing, feeds it directly to an inverter for generating a frequency above 1 kHz. Via an RF inductor and an ignition transformer, the lamp, which preferably contains a xenon filling above 1 bar, is fed the voltage modulated with twice the line frequency. The saving in electric energy of the lamp/ballast system is 30% by comparison with an inductor-driven Hg-free standard lamp, given the same luminous flux. The use of a microprocessor to control the half bridge permits an externally controlled or automatic lowering of power with a further potential energy saving of 35% on average over the year, and an end-of-life shutdown of the system in order to avoid cycling.

    摘要翻译: 钠高压灯可以通过对交流线路电压进行整流的电路布置来操作,并且分配平滑将其直接馈送到逆变器以产生高于1kHz的频率。 通过RF电感器和点火变压器,优选地包含高于1巴的氙气充电的灯被馈送到两倍于线路频率的电压。 与电感驱动的无汞标准灯相比,给定相同的光通量,灯/镇流器系统的电能节省30%。 使用微处理器控制半桥允许外部控制或自动降低功率,同时平均每年平均节能35%,系统关机结束以避免骑自行车 。

    High pressure discharge lamp, high pressure discharge lamp lighting apparatus and luminaire therefor
    134.
    发明申请
    High pressure discharge lamp, high pressure discharge lamp lighting apparatus and luminaire therefor 失效
    高压放电灯,高压放电灯照明装置及其灯具

    公开(公告)号:US20020135304A1

    公开(公告)日:2002-09-26

    申请号:US10014127

    申请日:2001-12-12

    IPC分类号: H01J017/16

    摘要: A high pressure discharge lamp includes a light-transmissive ceramic discharge vessel with an envelope having a maximum outer diameter D1 and open ends, a metal pipe having one end, i.e., a top end fused in the open end of the light-transmissive ceramic discharge vessel and the other end, i.e., a base end protruding from the light-transmissive ceramic discharge vessel, a pair of electrodes each having one end, i.e., a base end connectively supported on the base end of the metal pipe and the other end, i.e., a top end extending within the light-transmissive ceramic discharge vessel, and a discharge agent which is filled in the light-transmissive ceramic discharge vessel, wherein it is also characterized by that the high pressure discharge lamp has an overall length L1, and the overall length L1 and the maximum outer diameter of D1 satisfies a following equation. 1.5nullL1/D1null4.5

    摘要翻译: 高压放电灯包括具有最大外径D1和开口端的外壳的透光陶瓷放电容器,具有一端的金属管即熔合在透光陶瓷放电开口端的顶端 容器和另一端,即从透光陶瓷放电容器突出的基端,一对电极,每个电极具有一端,即,连接地支撑在金属管的基端上的基端和另一端, 即在透光性陶瓷放电容器内延伸的顶端,以及填充在透光性陶瓷放电容器内的放电剂,其特征还在于高压放电灯具有整体长度L1, D1的总长度L1和最大外径满足以下等式。 <段落lvl =“0”> 1.5 <= L1 / D1 <= 4.5

    Lighting device for electric discharge lamp
    135.
    发明授权
    Lighting device for electric discharge lamp 失效
    电动放电灯的照明装置

    公开(公告)号:US5083065A

    公开(公告)日:1992-01-21

    申请号:US599929

    申请日:1990-10-19

    摘要: A lighting device for an electric discharge lamp comprises an LC series resonant circuit, and control means for controlling an inverter circuit. Immediately after the occurrence of a dielectric breakdown in the electric discharge lamp. AC voltage with a relatively low frequency is applied to the lamp so as to pass a heavy current therethrough. Subsequently, the frequency is increased stepwise by a relatively small variation until a terminal voltage of the electric discharge lamp reaches a predetermined value. Thereafter, the frequency is increased stepwise by a relatiely large variation until the electric discharge lamp assumes a discharge stable state.

    摘要翻译: 用于放电灯的照明装置包括LC串联谐振电路和用于控制逆变器电路的控制装置。 紧接着在放电灯中发生电介质击穿。 具有较低频率的交流电压被施加到灯,以便通过其中的大电流。 随后,通过相对小的变化逐渐增加频率,直到放电灯的端子电压达到预定值。 此后,通过相对大的变化逐渐增加频率,直到放电灯呈现放电稳定状态。

    Apparatus for operating HID lamp at high frequency with high power
factor and for providing standby lighting
    136.
    发明授权
    Apparatus for operating HID lamp at high frequency with high power factor and for providing standby lighting 失效
    用于高功率操作HID灯的设备,具有高功率因数和提供待机照明

    公开(公告)号:US4506195A

    公开(公告)日:1985-03-19

    申请号:US464435

    申请日:1983-02-04

    申请人: Robert T. Elms

    发明人: Robert T. Elms

    CPC分类号: H05B41/36 H05B41/2887

    摘要: Ballast apparatus operates a HID lamp at high frequency and high power factor. Series-connected current-limiting input inductor and input capacitor connect across apparatus input and are tuned off resonance to pass predetermined lagging current. An additional input capacitor is connected across input terminals to that input power factor approaches unity. Full-wave diode bridge has input connected across series-connected input capacitor and filter capacitor connects across bridge rectifier output. During normal operation, the filter capacitor develops a DC potential which is current limited by series-connected inductor and capacitor. Inverter has input connected across filter capacitor and inverter an output that drives the HID lamp through a high-voltage generating and variable impedance resonant circuit. When HID lamp is not operating, resonant circuit impresses high voltage across lamp to start same in warm or cold condition and resonant circuit exhibits relatively low impedance which decreases current-limited potential across filter capacitor. When HID lamp is normally operating, resonant circuit exhibits relatively high impedance which increases DC potential across filter capacitor. Additional pair of series-connected diodes connect across bridge rectifier output and incandescent lamp connects between predetermined input terminal and voltage responsive control and switching means, which connects to interconnection of additional diodes. Voltage responsive switching means responds to decreased voltage across filter capacitor when HID lamp is not operating to energize standby incandescent lamp. When HID lamp is operating, voltage-responsive switching means responds to increased voltage across filter capacitor to maintain incandescent lamp de-energized.

    摘要翻译: 镇流器以高频和高功率因数操作HID灯。 串联连接的限流输入电感和输入电容连接在设备输入端,并调谐掉共振以通过预定的滞后电流。 在输入端子之间连接一个额外的输入电容器,使输入功率因数接近于一个单位。 全波二极管桥连接串联输入电容的输入端,滤波电容连接跨桥式整流器输出。 在正常工作期间,滤波电容产生直流电势,其电流由串联电感和电容限制。 变频器的输入端通过滤波电容和变频器连接,通过高压发生和可变阻抗谐振电路驱动HID灯。 当HID灯不工作时,谐振电路在暖或冷条件下使灯两端的高压开始相同,并且谐振电路呈现相对较低的阻抗,从而降低了滤波电容的电流限制电位。 当HID灯正常工作时,谐振电路呈现相对较高的阻抗,增加了跨滤波电容的直流电势。 另外一对串联二极管连接跨桥整流器输出,白炽灯连接在预定的输入端和电压响应控制和开关装置之间,连接到附加二极管的互连。 电压响应开关装置响应HID灯不工作以激励备用白炽灯时滤波电容的电压降低。 当HID灯工作时,电压响应开关装置响应滤波电容器两端的增加的电压,以保持白炽灯断电。

    Power supply for arc lamps
    137.
    发明授权
    Power supply for arc lamps 失效
    电弧灯电源

    公开(公告)号:US4485434A

    公开(公告)日:1984-11-27

    申请号:US397596

    申请日:1982-07-12

    摘要: A power supply for an arc lamp comprises a power source and an inverter, the power source being a constant current source and the inverter a bridge network of field effect transistors switched by square wave pulses from an oscillator so that the output of the bridge network comprises alternating square wave pulses of equal duration for driving the lamp. The oscillator pulses are fed by way of opto-isolators to the bridge transistors. The constant current source and bridge network are provided as a power module for parallel connection with like modules and the oscillator is of modular form and serves as a common oscillator for the power modules.

    摘要翻译: 电弧灯的电源包括电源和逆变器,电源是恒流源,逆变器由场振荡器的方波脉冲切换的场效应晶体管的桥接网络使得桥接网络的输出包括 用于驱动灯的相等持续时间的交替方波脉冲。 振荡器脉冲通过光隔离器馈送到桥式晶体管。 恒流源和桥接网络被提供为用于与类似模块并联的功率模块,并且振荡器是模块化形式,并且用作功率模块的公共振荡器。

    Circuit arrangement for operating a high-pressure gas discharge lamp
    138.
    发明授权
    Circuit arrangement for operating a high-pressure gas discharge lamp 失效
    用于操作高压气体放电灯的电路装置

    公开(公告)号:US4471269A

    公开(公告)日:1984-09-11

    申请号:US447842

    申请日:1982-12-08

    摘要: A circuit arrangement for operating a high-pressure gas discharge lamp (14) with high frequency current in which a direct voltage is supplied to a transistor bridge (5 to 8) having a transverse branch in which is arranged a choke coil (13). The clock (switching) frequency of the transistor bridge is varied within each period of the AC mains alternating voltage in dependence upon the current derived from the AC mains voltage.

    摘要翻译: 一种电路装置,用于将具有高频电流的高压气体放电灯(14)进行操作,其中直流电压被提供给具有横向分支的晶体管桥(5至8),其中配置有扼流线圈(13)。 晶体管桥的时钟(开关)频率在交流电源交流电压的每个周期内根据从交流电源电压得到的电流而变化。

    Discharge lamp auxiliary circuit with dI/dt switching control
    139.
    发明授权
    Discharge lamp auxiliary circuit with dI/dt switching control 失效
    放电灯辅助电路采用dI / dt开关控制

    公开(公告)号:US4060752A

    公开(公告)日:1977-11-29

    申请号:US662524

    申请日:1976-03-01

    申请人: Loren H. Walker

    发明人: Loren H. Walker

    摘要: A variable frequency AC source drives a gas discharge lamp which is connected in parallel with the capacitance of a series resonant circuit. The polarity of the voltage applied to the resonant circuit is commutated at such times as the rate-of-change of current flow in the resonant circuit is at or near zero. The source frequency is thus maintained at or near the circuit resonant frequency to maintain high output voltage when the lamp is starting or reigniting.The polarity is also commutated at such times as the current flow from the source reaches a predetermined level. Lamp current is thus controlled in the running mode.

    摘要翻译: 变频AC电源驱动与串联谐振电路的电容并联连接的气体放电灯。 施加到谐振电路的电压的极性在谐振电路中的电流变化率处于或接近零的时刻换向。 因此,源频率保持在或接近电路谐振频率,以在灯开始或重新点亮时保持高的输出电压。