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    VERFAHREN ZUM BETREIBEN MINDESTENS EINER LEUCHTSTOFFLAMPE MIT EINEM ELEKTRONISCHEN VORSCHALTGERÄT SOWIE VORSCHALTGERÄT DAFÜR
    63.
    发明授权
    VERFAHREN ZUM BETREIBEN MINDESTENS EINER LEUCHTSTOFFLAMPE MIT EINEM ELEKTRONISCHEN VORSCHALTGERÄT SOWIE VORSCHALTGERÄT DAFÜR 失效
    一种用于运行至少一个荧光灯电子镇流器镇流器确保两

    公开(公告)号：EP0801881B1

    公开(公告)日：1998-05-20

    申请号：EP95925814.6

    申请日：1995-07-03

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： KRUMMEL, Peter

    IPC分类号： H05B41/29

    CPC分类号： H05B41/2981 ,  Y10S315/07

    摘要： The invention concerns a method of operating at least one fluorescent lamp (FL) by means of electronic ballast and the ballast itself. A rectifier bridge (GL) at a.c. supply voltage (L, N), a connected high-value regulator (L1, D1, V1), a half-bridge circuit (V2, V3) and a control and regulating circuit (IC) are provided for continuously monitoring the lamp current with a regulated control circuit (CCO, SEL, HSD, LSD) for the power transistors (V2, V3) which maintains the bulb current constant during normal operation. As a master control system, a time-value emitting device (PST, IT, CT), which is activated in a specific manner whenever the lamp is activated or a fault is detected, generates a time base for a monitoring circuit (MON) which evaluates the lamp current at any particular moment at predetermined reference levels (Mp, Mi and Mo) which differ in individual time sections (Δpt, Δit, Δst, Δot) and which, via the regulated control circuit (CCO, IST, SEL, HSD, LSD), controls the lamp current as a function of time if the lamp starts normally and triggers automatic switching-off of the electronic ballast in the event of a fault.

    ELECTRONIC BALLAST
    64.
    发明公开
    ELECTRONIC BALLAST 失效
    电子镇流器

    公开(公告)号：EP0838129A1

    公开(公告)日：1998-04-29

    申请号：EP97916619.0

    申请日：1997-04-30

    申请人： Philips Electronics N.V.

    发明人： XIA, Yong, Ping ,  LU, Xing-Xing ,  CHOU, John

    IPC分类号： H05B41

    CPC分类号： H05B41/2853 ,  H05B41/2981

    摘要： A programmed electronic ballast circuit including a voltage maintenance circuit to ensure that the integrated circuit continues to oscillate and drive the half-bridge inverter until the DC bus voltage falls to a level insufficient to permit the fluorescent bulbs at the output to ignite. Additionally, the voltage maintenance circuit drives the voltage of the integrated circuit down to a level whereby proper resetting of the integrated circuit and proper preheating of the fluorescent bulb filaments is assured.

    CONTROL AND PROTECTION OF DIMMABLE ELECTRONIC FLUORESCENT LAMP BALLAST WITH WIDE INPUT VOLTAGE RANGE AND WIDE DIMMING RANGE
    65.
    发明公开
    CONTROL AND PROTECTION OF DIMMABLE ELECTRONIC FLUORESCENT LAMP BALLAST WITH WIDE INPUT VOLTAGE RANGE AND WIDE DIMMING RANGE 失效
    具有宽输入电压范围和宽调光范围的可调电子荧光灯镇流器的控制和保护

    公开(公告)号：EP0818129A1

    公开(公告)日：1998-01-14

    申请号：EP96938661.0

    申请日：1996-10-28

    申请人： GENERAL ELECTRIC COMPANY

    发明人： STEVANOVIC, Ljugisa, Dragoljub ,  STEIGERWALD, Robert, Louis ,  KHERALUWALA, Mustansir, Hussain

    IPC分类号： H05B41

    CPC分类号： H05B41/2851 ,  H05B41/2981 ,  H05B41/3925 ,  H05B41/3927 ,  Y02B20/186

    摘要： A ballast system for at least one dimmable fluorescent lamp includes a resonant switching inverter and a controller which controls the inverter to operate above resonance during starting and normal running operation. After a start delay timer alloys time for the lamp filaments to heat up, the controller provides control signals to a gate driver to drive the switching devices of the switching inverter initially at a relatively high frequency and then reduces the frequency until a sufficiently high voltage is reached to start the lamp. Once the lamp is started, the inverter is operated in its normal feedback mode. The ballast system further includes an overvoltage shutdown mechanism. During lamp starting, if either the output of the start delay timer is high or the output voltage is greater than a first overvoltage shutdown threshold, then an overvoltage shutdown timer is activated to shut down operation of the inverter for a predetermined overvoltage shutdown period. After the lamp has started, a second overvoltage shutdown threshold is activated which is lower than the first overvoltage threshold for avoiding operation of the inverter below resonance. Both the frequency and duty cycle of the output voltage from the switching inverter are variable to achieve a wide dimming range over a relatively narrow frequency range.

    摘要翻译： 用于至少一个可调光荧光灯的镇流器系统包括谐振开关逆变器和控制器，所述控制器控制逆变器在启动和正常运行操作期间在谐振之上操作。 在启动延迟计时器合金灯丝加热时间之后，控制器将控制信号提供给栅极驱动器以开始以相对高的频率驱动开关逆变器的开关器件，然后降低频率直到足够高的电压为 达到启动灯。 一旦灯启动，逆变器就以正常的反馈模式运行。 镇流器系统还包括过压关断机构。 在灯启动期间，如果启动延迟定时器的输出为高或者输出电压大于第一过压关闭阈值，则过压关闭定时器被激活以在预定的过压关闭时段期间关闭逆变器的操作。 灯启动后，第二个过压关断阈值被激活，低于第一个过压阈值，以避免变频器在共振之下运行。 来自开关逆变器的输出电压的频率和占空比都是可变的，以在相对较窄的频率范围内实现宽调光范围。

    Fluorescent lamp controllers with dimming control
    67.
    发明公开
    Fluorescent lamp controllers with dimming control 失效
    SteuerschaltungenfürLeuchtstofflampen mit Dimmersteuerung。

    公开(公告)号：EP0399613A2

    公开(公告)日：1990-11-28

    申请号：EP90201293.9

    申请日：1990-05-22

    申请人： PHILIPS ELECTRONICS NORTH AMERICA CORPORATION

    发明人： Wong, John ,  Kurczak, Michael

    IPC分类号： H05B41/392 ,  H05B41/29

    CPC分类号： H05B41/28 ,  H05B41/2981 ,  H05B41/3925 ,  Y10S315/04

    摘要： The invention relates to a lamp controller comprising a dimmer circuit for operating in response to a control voltage from a control voltage source to control a high frequency AC lamp-energizing source of said lamp controller and to thereby control light intensity, said dimmer circuit comprising: an isolation transformer including coupled primary and secondary winding means, means for applying a high frequency current from said controller to said primary winding means, input terminals for connection to said control voltage source, loading means coupled to said secondary winding means and to said input terminals and arranged to limit the voltage across said secondary winding means as a function of said control voltage and to thereby limit the high frequency voltage developed across said primary winding means from said high frequency current, and detector and output means for developing and applying to said controller an output signal for control of lamp intensity which corresponds to the high frequency voltage developed across said primary winding means, said loading means including amplifier means and being arranged to respond to a small control current through said voltage source to produce amplified and substantially equal loading currents in said secondary winding means in both half cycles of said high frequency current applied to said primary winding means.

    摘要翻译： 本发明涉及一种灯控制器，包括一个调光电路，用于响应于来自控制电压源的控制电压而操作，以控制所述灯控制器的高频AC灯通电源并由此控制光强度，所述调光电路包括： 包括耦合的初级和次级绕组装置的隔离变压器，用于将高频电流从所述控制器施加到所述初级绕组装置的装置，用于连接到所述控制电压源的输入端，耦合到所述次级绕组装置的加载装置和所述输入端 并且被布置为根据所述控制电压来限制所述次级绕组装置上的电压，从而限制所述初级绕组装置从所述高频电流产生的高频电压，以及用于显影和施加到所述控制器的检测器和输出装置 用于控制对应于th的灯强度的输出信号 在所述初级绕组装置上产生的高频电压，所述加载装置包括放大器装置，并且被布置成响应于通过所述电压源的小的控制电流，以在所述次级绕组装置中在所述第二绕组装置的两个半周期内产生放大的和基本上相等的负载电流 施加到所述初级绕组装置的高频电流。

    Verfahren und Vorrichtung zum Betreiben mindestens einer Gasentladungslampe
    68.
    发明公开
    Verfahren und Vorrichtung zum Betreiben mindestens einer Gasentladungslampe 失效
    Verfahren und Vorrichtung zum Betreiben mindestens einer Gasentladungslampe。

    公开(公告)号：EP0359860A1

    公开(公告)日：1990-03-28

    申请号：EP88115709.3

    申请日：1988-09-23

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： Herfurth, Michael, Dipl.-Ing. ,  Söylemez, Ali-Ihsan

    IPC分类号： H05B41/29

    CPC分类号： H05B41/382 ,  H05B41/2981 ,  Y02B20/204 ,  Y10S315/04

    摘要： Die Erfindung stellt ein Verfahren und eine Vorrichtung zum Be­treiben einer Gasentladungslampe, insbesondere einer Leucht­stofflampe vor, die durch einen fremdgesteuerten Lampengene­rator (III) mit hochfrequenter Wechselspannung gespeist wird. Die Gasentla- dungslampe (22) ist im Normalbetrieb durch Vari­ieren der Betriebs- frequenz (f B ) des Lampengenerators (III) dimmbar. Das Verfahren sieht vor, daß während einer Vorheizpha­se (a) die Betriebsfrequenz (f B ) des Lampengenerators (III) grö­ßer als die Nennfrequenz (f N ) im Nennbetrieb gewählt und an­schließend die Betriebsfrequenz (f B ) so lange verringert wird bis die Gasentladungslampe (22) zündet. Nach dem Zünden der Gas­entladungslampe (22) wird die Betriebsfrequenz (f B ) bis zur Nenn­frequenz (f N ) verringert und anschließend der Normalbetrieb (d) e;ngeleitet.

    摘要翻译： 本发明代表用于操作由外部控制的灯发生器（III）以高频交流电压馈送的气体放电灯，特别是荧光灯的方法和装置。 在正常操作中，可以通过改变灯发生器（III）的工作频率（fB）来调节气体放电灯22。 该过程规定，在预热阶段（a）中，灯发生器（III）的工作频率（fB）被选择为大于标称操作中的标称频率（fN），随后的工作频率（fB）为 直到气体放电灯（22）点燃。 在气体放电灯（22）的点火之后，工作频率（fB）减小到标称频率（fN），并且随后引入正常操作（d）。 ... ...

    Drive device for a discharge lamp
    69.
    发明公开
    Drive device for a discharge lamp 失效
    Steuergerätfüreine Entladungslampe。

    公开(公告)号：EP0326114A1

    公开(公告)日：1989-08-02

    申请号：EP89101287.4

    申请日：1989-01-25

    申请人： TOKYO ELECTRIC CO., LTD.

    发明人： Suzuki, Satoshi ,  Kimura, Fujinori ,  Kubota, Hiroshi

    IPC分类号： H05B41/29

    CPC分类号： H05B41/2851 ,  H05B41/2981

    摘要： A drive device for a discharge lamp comprises a series inverter circuit (24) with first and second out­put terminals for producing an AC voltage between the first and second output terminals, a capacitor (33) con­nected between first ends of first and second filaments (32A, 32B) of the discharge lamp (32), and an inductor section for igniting the discharge lamp (32) in coopera­tion with the capacitor (33) and restricting a discharge current to be flow between the first and second fila­ments (32A, 32B) after the discharge lamp (32) has been ignited. In the drive device, the inductor section includes first and second inductors (37A, 37B) respec­tively connected between the first output terminal of the series inverter circuit (24) and a second end of the first filament (32A) and between the second output ter­minal of the series inverter circuit (24) and a second end of the second filament (32B).

    摘要翻译： 一种用于放电灯的驱动装置，包括：串联逆变器电路，具有第一和第二输出端，用于在第一和第二输出端之间产生交流电压;电容器，连接在第一和第二细丝的第一端之间， ，32B）和用于与电容器（33）配合点燃放电灯（32）并限制在第一和第二灯丝（32A，32B）之间流动的放电电流的电感器部分， 在放电灯（32）被点燃之后。 在驱动装置中，电感器部分包括分别连接在串联逆变器电路（24）的第一输出端子和第一灯丝（32A）的第二端之间以及第二输出端子之间的第一和第二电感器（37A，37B） 的串联逆变器电路（24）和第二灯丝（32B）的第二端。