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15 条记录 (耗时 0.011 秒)

    Self-regulating, no load protection electronic ballast system
    3.
    发明公开
    Self-regulating, no load protection electronic ballast system 失效
    Selbstregulierendes，gegen NichtbelastunggeschütztesBallastsystem。

    公开(公告)号：EP0325009A1

    公开(公告)日：1989-07-26

    申请号：EP88300404.6

    申请日：1988-01-19

    申请人： INTENT PATENTS A.G.

    发明人： Hanlet, Jacques Marie

    IPC分类号： H05B41/29

    CPC分类号： H05B41/2821 ,  H05B41/295 ,  Y02B20/185 ,  Y10S315/07

    摘要： A self-regulating, no load protected electronic ballast system (10) is provided which includes a power source (12) for actuating at least one gas discharge tube (66) with a regulated current and limited voltage to maintain the gas discharge tubes (66) input and output power at a predetermined value. The self-regulating, no load protected electronic ballast system (10) includes a filter circuit (11) coupled to the power source (12) with an induction circuit (15) coupled to the filter circuit (11). The induction circuit (15) has a tapped primary winding (42) providing an auto-transformer configuration for establishing the magnitude of the regulated current. The induction circuit (15) includes a trigger control winding (48) for generating a control current and further includes a no load protection circuit (99) for generating a voltage across the gas discharge tube (66) responsive to the regulated current and for maintaining the output voltage at a predetermined value when the gas discharge tube (66) is decoupled from the electronic ballast system (10). In this manner, the output voltage of the ballast system (10) is substantially reduced when the gas discharge tube (66) is electrically decoupled from the overall circuit resulting in a higher reliability and extended life of a particular gas discharge tube (66).

    摘要翻译： 提供了一种自调节无负载保护的电子镇流器系统（10），其包括用于以稳定的电流和有限电压致动至少一个气体放电管（66）的电源（12），以维持气体放电管（66 ）输入和输出功率在预定值。 自调节无负载保护的电子镇流器系统（10）包括耦合到电源（12）的滤波电路（11），耦合到滤波电路（11）的感应电路（15）。 感应电路（15）具有抽头的初级绕组（42），其提供用于建立调节电流的大小的自动变压器配置。 感应电路（15）包括用于产生控制电流的触发控制绕组（48），并且还包括空载保护电路（99），用于响应于调节电流产生气体放电管（66）两端的电压并用于维持 当气体放电管（66）与电子镇流器系统（10）分离时，输出电压处于预定值。 以这种方式，当气体放电管（66）与整个电路电分离时，镇流器系统（10）的输出电压显着降低，导致特定气体放电管（66）的更高的可靠性和更长的寿命。

    Frequency stabilized automatic gain controlled ballast system
    4.
    发明公开
    Frequency stabilized automatic gain controlled ballast system 失效
    频率稳定镇流器装置具有自动增益控制。

    公开(公告)号：EP0186931A1

    公开(公告)日：1986-07-09

    申请号：EP85300075.0

    申请日：1985-01-04

    申请人： INTENT PATENTS A.G.

    发明人： Hanlet, Jacques Marie

    IPC分类号： H05B41/29

    CPC分类号： H05B41/2821 ,  H05B41/295 ,  Y02B20/185 ,  Y10S315/07

    摘要： A frequency stabilized automatic gain controlled ballast system (10) which is coupled to a power source (12) in order to operate at least one of a pair of gas discharge tubes (40 and 40'). Each of the gas discharge tubes (40, 40') include respective filaments (42, 44 and 42', 44'). A frequency control circuit (11) is coupled to the power source (12) and includes a frequency control transformer (43) and a frequency control capacitor (50) for establishing a constant oscillation signal at a predetermined frequency. A switching network (13) is connected to the frequency control circuit (11) for establishing a pulsating current responsive to the constant oscillation signal of predetermined frequency. Induction circuitry (15) is coupled to the switching network (13) and the frequency control circuit (11) and includes an inverter transformer (78) as well as coupling capacitors (86 and 88) for generating a voltage across the gas discharge tubes (40 and 40'). Automatic gain control circuitry (17) is included in inverter transformer (78) and is made up of a pair of secondary windings (80 and 81) wound in a manner to provide a negative feedback voltage to each of the transistors (70 and 70') of switching network (13). The inverter transformer (78) has a pair of primary windings (82 and 84) which operate alternately and are coupled to the primary winding (45) of frequency control transformer (43) to provide a repetitive cycle. First and second coupling capacitors (86 and 88) are coupled to primary windings (82 and 84) of inverter transformer (78) and filaments (42 and 42') of gas discharge tubes (40 and 40') for discharging the induced voltage across the tubes (40 and 40').

    Electronic ballast system for gas discharge tubes
    5.
    发明公开
    Electronic ballast system for gas discharge tubes 失效
    Elektronisches VorschaltsystemfürGasentladungslampen。

    公开(公告)号：EP0181480A1

    公开(公告)日：1986-05-21

    申请号：EP85112512.0

    申请日：1983-01-19

    申请人： INTENT PATENTS A.G.

    发明人： Hanlet, Jacques M.

    IPC分类号： H05B41/16

    CPC分类号： H05B41/2821 ,  H05B41/392

    摘要： According to the invention, a fluorescent tube is powered by a ballast system comprising a transformer connected to an AC power source via a rectifying diode. The primary winding of the transformer is connected in series with the power source and filament of the tube via a capacitor. The secondary winding of transformer is connected to in positive feed-back relation with the base (44) and emitter (42)-of a transistor. The collector of the transistor is connected to the capacitor. The second capacitor is connected in series with the transformer secondary winding to apply a pulse voltage to the second filament of the tube.

    摘要翻译： 根据本发明，荧光管由包括经由整流二极管连接到AC电源的变压器的镇流器系统供电。 变压器的初级绕组通过电容器与电源和电源线串联。 变压器的次级绕组与晶体管的基极（44）和发射极（42）以正反馈关系连接。 晶体管的集电极连接到电容器。 第二电容器与变压器次级绕组串联连接，以向管的第二个细丝施加脉冲电压。

    Universal electronic ballast system
    6.
    发明公开
    Universal electronic ballast system 失效
    Vielseitiges elektronischesVorschaltgerät。

    公开(公告)号：EP0495571A2

    公开(公告)日：1992-07-22

    申请号：EP92300091.3

    申请日：1992-01-07

    申请人： INTENT PATENTS A.G.

    发明人： Johns, Douglas A.

    IPC分类号： H05B41/29 ,  H02M1/00

    CPC分类号： H05B41/28 ,  Y10S315/07

    摘要： A universal electronic ballast system (10) is provided for actuating at least one gas discharge lamp (1900) having any one of a plurality of predetermined wattage ratings. Electronic ballast system (10) includes a filter circuit coupled to an AC power mains (100,110) for substantially suppressing spurious signals passing into or from the power source. The filter circuit is coupled to a regulated switching power supply circuit (14) which generates a regulated boost voltage and draws a substantially constant in phase sinusoidal load current from the power source supplied to a switching circuit (16) which generates a regulated pulsating current at a predetermined frequency. Responsive to the regulated pulsating current a high voltage is induced in the primary windings (1710 and 1680) of induction transformer (T3). The high voltage is coupled to gas discharge lamp (1900) by means of the magnetic coupling between primary winding (1730) and secondary winding (1770) of the output transformer (T2). Universal electronic ballast system (10) monitors the presence of gas discharge lamp (1900) by means of the voltage divider (1270,1830) and protection circuit formed by diode (1490), transistors (1380) and transistors (1380 and 1440), for maintaining the switching transistor (1590) in an "off" condition by shunting the base drive signal therefrom responsive to gas discharge lamp (1900) being removed from ballast system (10).

    摘要翻译： 提供通用电子镇流器系统（10），用于致动具有多个预定功率额定值中的任何一个的至少一个气体放电灯（1900）。 电子镇流器系统（10）包括耦合到交流电源（100,110）的滤波器电路，用于基本上抑制通入或流出电源的杂散信号。 滤波器电路耦合到调节开关电源电路（14），其产生调节的升压电压并且从提供给开关电路（16）的电源中提取大致恒定的相位正弦负载电流，该开关电路产生调节的脉动电流 预定频率。 响应于调节的脉动电流，在感应变压器（T3）的初级绕组（1710和1680）中感应出高电压。 高压通过输出变压器（T2）的初级绕组（1730）和次级绕组（1770）之间的磁耦合耦合到气体放电灯（1900）。 通用电子镇流器系统（10）通过分压器（1270,1830）和由二极管（1490），晶体管（1380）和晶体管（1380和1440）形成的保护电路监视气体放电灯（1900）的存在， 用于通过从气压放电灯（1900）从镇流器系统（10）移除而将开关晶体管（1590）保持在“关闭”状态，通过分流基极驱动信号。

    Universal electronic ballast system
    10.
    发明公开
    Universal electronic ballast system 失效
    通用电子镇流器系统

    公开(公告)号：EP0495571A3

    公开(公告)日：1992-09-02

    申请号：EP92300091.3

    申请日：1992-01-07

    申请人： INTENT PATENTS A.G.

    发明人： Johns, Douglas A.

    IPC分类号： H05B41/29 ,  H02M1/00

    CPC分类号： H05B41/28 ,  Y10S315/07

    摘要： A universal electronic ballast system (10) is provided for actuating at least one gas discharge lamp (1900) having any one of a plurality of predetermined wattage ratings. Electronic ballast system (10) includes a filter circuit coupled to an AC power mains (100,110) for substantially suppressing spurious signals passing into or from the power source. The filter circuit is coupled to a regulated switching power supply circuit (14) which generates a regulated boost voltage and draws a substantially constant in phase sinusoidal load current from the power source supplied to a switching circuit (16) which generates a regulated pulsating current at a predetermined frequency. Responsive to the regulated pulsating current a high voltage is induced in the primary windings (1710 and 1680) of induction transformer (T3). The high voltage is coupled to gas discharge lamp (1900) by means of the magnetic coupling between primary winding (1730) and secondary winding (1770) of the output transformer (T2). Universal electronic ballast system (10) monitors the presence of gas discharge lamp (1900) by means of the voltage divider (1270,1830) and protection circuit formed by diode (1490), transistors (1380) and transistors (1380 and 1440), for maintaining the switching transistor (1590) in an "off" condition by shunting the base drive signal therefrom responsive to gas discharge lamp (1900) being removed from ballast system (10).