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    • 193. 发明申请
    • FLUORESCENT TUBE LAMP DRIVE CIRCUIT
    • 荧光灯管驱动电路
    • WO2006003560A1
    • 2006-01-12
    • PCT/IB2005/052064
    • 2005-06-23
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BUIJ, Arnold, W.VAN DER VEEN, Geert, W.
    • BUIJ, Arnold, W.VAN DER VEEN, Geert, W.
    • H05B41/295
    • H05B41/295Y10S315/05
    • A drive circuit for driving a fluorescent tube lamp comprises a variable frequency oscillator generating a lamp drive frequency, a resonant drive circuit driving the lamp with the lamp drive frequency, and a control unit for driving the variable frequency of the latter under control of a synchronization signal. When a pre-heating frequency is generated by the variable frequency oscillator, the lamp is pre-heated while when an illumination drive frequency is generated, the lamp ignites and operates in its illuminated state. The control unit comprises a transition controller for at an ignition of the lamp limiting the drive frequency to an ultimate ignition frequency, and only enabling transition from the ultimate ignition frequency to the illumination drive frequency after an ignition delay time.
    • 用于驱动荧光管灯的驱动电路包括产生灯驱动频率的可变频率振荡器,用灯驱动频率驱动灯的谐振驱动电路,以及用于在同步控制下驱动后者的可变频率的控制单元 信号。 当由可变频率振荡器产生预热频率时,灯被预热,而当产生照明驱动频率时,灯点亮并在其照亮状态下工作。 控制单元包括一个过渡控制器,用于点灯时将驱动频率限制在极限点火频率,并且仅在点火延迟时间之后才允许从最终点火频率转换到照明驱动频率。
    • 194. 发明申请
    • DIGITAL ELECTRONIC BALLAST CONTROL APPARATUS AND METHOD
    • 数字电子控制装置及方法
    • WO2004103026A3
    • 2005-12-01
    • PCT/US2004014237
    • 2004-05-05
    • INT RECTIFIER CORPRIBARICH THOMAS JGREEN PETER
    • RIBARICH THOMAS JGREEN PETER
    • H05B41/282H05B41/295H05B41/298G05F1/00H05B37/02
    • H05B41/295H05B41/2828H05B41/2981Y02B20/186
    • A ballast control (10) may include a digital controlled oscillator (11) to provide a precise and consistent oscillation frequency for switching a half-bridge circuit in the electronic ballast. The ballast control (10) may include a digital memory device (15) for storing ballast control operational parameters. A controller (12) cap access the digital memory to retrieve parameter values and applies them to various ballast control components. A counter (16) in the ballast control counts a number of events, and provides a signal when a predetermined count is reached to contribute to identifying fault conditions. The controller (12) may contain one or more timers to time duration's related to events in the electronic ballast, such as the initiation of an ignition current The digital nature of the ballast control permits a wide degree of flexibility in providing operational set points and reacting to conditions in the electronic ballast and simplifies the ballast control.
    • 镇流器控制(10)可以包括数字控制振荡器(11),以提供用于切换电子镇流器中的半桥电路的精确和一致的振荡频率。 镇流器控制(10)可以包括用于存储镇流器控制操作参数的数字存储器件(15)。 控制器(12)盖进入数字存储器以检索参数值并将其应用于各种镇流器控制部件。 镇流器控制中的计数器(16)对多个事件进行计数,并且在达到预定计数时提供信号以有助于识别故障状况。 控制器(12)可以包含与电子镇流器中的事件相关的持续时间的一个或多个定时器,例如点火电流的启动。镇流器控制的数字性质允许在提供操作设定点和反应中具有广泛的灵活性 在电子镇流器的条件下简化镇流器控制。
    • 195. 发明申请
    • 点灯ユニット及び低圧水銀放電ランプ
    • 灯泡操作单元和低压汞排放灯
    • WO2005083323A1
    • 2005-09-09
    • PCT/JP2005/001698
    • 2005-02-04
    • 松下電器産業株式会社高橋 暁良業天 正芳
    • 高橋 暁良業天 正芳
    • F21V23/02
    • H05B41/295Y02B20/19
    • 突入電流低減用の突入電流防止抵抗を備えると共に、間違って調光点灯されても、前記突入電流防止抵抗に過度な電流が流れるのを防ぐ。  電球形蛍光ランプ1は、ホルダー20とケース30とを組み立て、このケース30の内部に、発光管10を点灯させる点灯ユニット50を収納している。この点灯ユニット50は、整流・平滑回路部とインバータ回路部と共振回路部とを基板51に備え、整流・平滑回路部の入力側に接続される突入電流防止抵抗62を有する。突入電流防止抵抗62の本体部外周が、整流・平滑回路部に使用される電解コンデンサ53と共振回路部に使用される共振用コンデンサ54の両本体部外周に接触する状態で配置されている。
    • 提供了用于降低浪涌电流的浪涌电流防止电阻,并且即使在错误地进行调光操作的情况下也防止了过电流流过浪涌电流阻止电阻。 紧凑型荧光灯(1)包括保持器(20)和壳体(30)的组件和用于操作容纳在壳体(30)中的电弧管(10)的操作单元(50)。 操作单元(50)包括整流/平滑电路部分,逆变器电路部分和安装在板(51)上的谐振电路部分,还包括与整流器的输入侧连接的浪涌电流防止电阻器 /平滑电路部分。 浪涌电流防止电阻器62被布置为使得其主体部分的外周接触用于整流/平滑电路部分的电解电容器53的主体部分的外周, 用于谐振电路部分的谐振电容器(54)的主体部分。
    • 197. 发明申请
    • DIGITAL LIGHTING BALLAST OSCILLATOR
    • 数码照明灯泡振荡器
    • WO2004079471A2
    • 2004-09-16
    • PCT/US2004/006426
    • 2004-03-03
    • INTERNATIONAL RECTIFIER CORPORATIONRIBARICH, Thomas, J.GREEN, PeterSUBRAMANIAN, Muthu
    • G05F
    • H05B41/2828H05B41/295H05B41/3925
    • An oscillator for a power converter control outputs a pulse train based on a charging time of a capacitor linked to a variable current source. A digital to analog converter (DAC) controls the variable current source in conjunction with a switch to determine the charging time of the capacitor. By varying the digital DAC input, the charging time of the capacitor is modified, thereby modifying the frequency of the pulse train. A comparator compares the capacitor voltage to a toggled threshold, which switches depending on whether the capacitor is charging or discharging. The comparator output supplies the pulse train that can be used in a half bridge switching arrangement for the power converter, which can also serve as an electronic ballast for a lamp.
    • 用于功率转换器控制的振荡器基于连接到可变电流源的电容器的充电时间输出脉冲串。 数模转换器(DAC)与开关一起控制可变电流源,以确定电容器的充电时间。 通过改变数字DAC输入,改变电容器的充电时间,从而改变脉冲串的频率。 比较器将电容器电压与切换阈值进行比较,这取决于电容器是充电还是放电。 比较器输出提供可用于功率转换器的半桥开关装置中的脉冲串,其也可以用作灯的电子镇流器。
    • 198. 发明申请
    • LIGHTING CONTROL SYSTEM WITH VARIABLE ARC CONTROL INCLUDING START-UP CIRCUIT FOR PROVIDING A BIAS VOLTAGE SUPPLY
    • 具有可变电弧控制的照明控制系统,包括用于提供偏置电压的启动电路
    • WO2004010735A3
    • 2004-04-22
    • PCT/US0321965
    • 2003-07-16
    • GLADDING DONALD K
    • NOSTWICK ALLAN ALBERT
    • H05B41/28H05B41/282H05B41/295H05B41/16
    • H05B41/28H05B41/282H05B41/295
    • A lighting control system provides variable arc current to one or more fluorescent gas discharge lamps (30) and provides a heating voltage to the lamp electrodes. The system includes a start-up circuit which includes circuitry for providing a starting voltage to an output power conditioning circuit (28). The latter drives a switching unit to control the application of DC power to the fluorescent gas discharge lamps and to provide an operating voltage to an input power factor correction circuit (18). The input power factor correction circuit (18) boosts the converted DC power and the operating voltage. The start-up circuit (28) includes a plurality of voltage doubling rectifier circuits (D103-D106) and a plurality of zener diodes (Z101, Z102) which receive the operating voltage and are electrically connected to the input power factor correction circuit (18) and the output power conditioning unit (28) so as to provide a regulated bias voltage supply to the output power conditioning unit and to the input power factor correction circuit.
    • 照明控制系统向一个或多个荧光气体放电灯(30)提供可变电弧电流,并向灯电极提供加热电压。 该系统包括启动电路,其包括用于向输出功率调节电路(28)提供启动电压的电路。 后者驱动开关单元来控制对荧光气体放电灯的直流电力的应用并向输入功率因数校正电路(18)提供工作电压。 输入功率因数校正电路(18)提高转换的直流电力和工作电压。 启动电路(28)包括多个倍压整流电路(D103-D106)和多个齐纳二极管(Z101,Z102),其接收工作电压并电连接到输入功率因数校正电路 )和输出功率调节单元(28),以便向输出功率调节单元和输入功率因数校正电路提供稳定的偏置电压源。
    • 200. 发明申请
    • DISCHARGE LAMPS
    • 放射灯
    • WO02032195A2
    • 2002-04-18
    • PCT/CA2001/001431
    • 2001-10-12
    • C02F1/32H05B41/295
    • C02F1/325C02F2201/3227C02F2201/326H05B41/295Y02W10/37
    • A system for operating a discharge lamp at partial power by heating the filaments to maintain an operating temperature for the filaments within an operating temperature range. The system comprises a ballast with a resonant circuit having a resonant frequency for supplying power to the discharge lamp and a heating power to each filament of the discharge lamp. The heating power is substantially controlled by an inductor in series with each filament. The ballast with the discharge lamp as a load is characterized by an output having a higher voltage at lower power than at higher power levels. This profile is also suitable for heating the filaments of the discharge lamp, which require more heating power or higher voltage when the discharge lamp is operating at lower power levels.
    • 一种用于通过加热灯丝来以部分功率操作放电灯以将灯丝的工作温度保持在工作温度范围内的系统。 该系统包括具有谐振电路的镇流器,该谐振电路具有用于向放电灯供电的谐振频率和对放电灯的每个灯丝的加热功率。 加热功率基本上由与每根灯丝串联的电感器控制。 放电灯作为负载的镇流器的特征在于具有比在较高功率电平低的功率下的较高电压的输出。 该型材也适用于加热放电灯的灯丝,当放电灯以较低的功率水平运行时,其需要更多的加热功率或更高的电压。