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    • 31. 发明申请
    • METHOD AND SYSTEM FOR OPERATING A GAS DISCHARGE LAMP
    • 用于操作气体放电灯的方法和系统
    • US20100060184A1
    • 2010-03-11
    • US12302040
    • 2007-05-10
    • Engbert Bernard Gerard NijhofMarcel Johannes Maria BucksJozef Petrus Emanuel De KrijgerCong Khanh Pham
    • Engbert Bernard Gerard NijhofMarcel Johannes Maria BucksJozef Petrus Emanuel De KrijgerCong Khanh Pham
    • H05B41/288
    • H05B41/2881Y02B20/204
    • In an application of a gas discharge lamp (La) arranged at a relatively large distance from its driving lamp driver circuit, parasitic capacitances (CGR,1, CGR,2) between the wiring (W1, W2) and ground may result in a current flowing to other parts of the lamp driver circuit, which may result in incorrect operation of the lamp driver circuit. In particular, if the gas discharge lamp is ignited using a resonant circuit for generating a relatively high ignition voltage such incorrect operation may result. In accordance with the present invention, a first alternating voltage is generated at a first lamp terminal (O1) and a second alternating voltage is generated at a second lamp terminal (O2), such that the voltage across the lamp terminals is equal to the sum of the first and the second alternating voltages. Thereto, a resonant inductance of the resonant circuit is embodied as a first and a second inductor (L1a, L1b), each coupled to a respective lamp terminal of the gas discharge lamp.
    • 在与其驱动灯驱动电路相距较远的气体放电灯(La)的应用中,布线(W1,W2)与地之间的寄生电容(CGR,1,CGR,2)可能导致电流 流到灯驱动器电路的其他部分,这可能导致灯驱动器电路的不正确的操作。 特别地,如果使用谐振电路点燃气体放电灯以产生相对较高的点火电压,则可能导致不正确的操作。 根据本发明,在第一灯端子(O1)处产生第一交流电压,并且在第二灯端子(O2)处产生第二交流电压,使得灯端子两端的电压等于总和 的第一和第二交流电压。 此外,谐振电路的谐振电感被实现为第一和第二电感器(L1a,L1b),每个耦合到气体放电灯的各个灯端子。
    • 32. 发明申请
    • Power supply for external electrode fluorescent lamps
    • 外部电极荧光灯的电源
    • US20090146586A1
    • 2009-06-11
    • US11999568
    • 2007-12-06
    • Francis J. ParkerRobert CrawbuckEmilian Padurariu
    • Francis J. ParkerRobert CrawbuckEmilian Padurariu
    • H05B41/288
    • H05B41/2828Y10S315/07
    • The present invention provides a power supply circuit for providing power for a plurality of external electrode fluorescent lamps (EEFLs) connected in parallel, comprising a controllable voltage regulator for receiving an input power signal and for providing a regulated voltage signal, an output inverter and a resonant circuit connected to receive the regulated voltage signal and for providing a resonant frequency signal, a voltage transformation stage for receiving the resonant frequency signal for transforming the resonant frequency signal to a power voltage signal capable of driving a plurality of EEFLs connected in parallel, wherein the controllable voltage regulator is connected to receive the resonant frequency signal and is responsive thereto to keep the resonant frequency signal within an acceptable operating voltage range to power the EEFLs independently of the number of EEFLs connected to receive the power voltage signal.
    • 本发明提供了一种用于为并联连接的多个外部电极荧光灯(EEFL)提供电力的电源电路,包括用于接收输入功率信号并提供调节电压信号的可控电压调节器,输出反相器和 谐振电路,其连接以接收调节电压信号并用于提供谐振频率信号;电压变换级,用于接收用于将谐振频率信号转换成能够驱动并联连接的多个EEFL的电源电压信号的谐振频率信号,其中 连接可控电压调节器以接收谐振频率信号并响应于此,以将谐振频率信号保持在可接受的工作电压范围内,以独立于连接的EEFL的数量来供电EEFL以接收电力电压信号。
    • 36. 发明申请
    • Ballast for a discharge lamp
    • 镇流器放电灯
    • US20050212457A1
    • 2005-09-29
    • US10507173
    • 2003-03-06
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • H05B1/00H01J1/00H05B41/288H05B41/38H05B37/02
    • H05B41/2887H05B41/2881H05B41/382Y02B20/202Y02B20/204
    • The invention relates to ballast for a discharge lamp (16), comprising a direct-current supply phase (2), semiconductor switches (10, 11), operated at a high-frequency clock frequency for modifying the direction of current through the discharge lamp (16), an ignition transformer (15), which can be supplied with the direct current of the direct-current supply phase (2) via a series capacitor (14) and a choke inductance (17) that is connected to an electrode of the discharge of the discharge lamp (16), said electrode not being connected to the ignition transformer (15). To increase the ignition reliability of the discharge lamp (16), a capacitor (24), connected in series to a switch (23), is connected between a junction point (27) of the series capacitor (14) and ignition transformer (15) on one side and a junction point (26) between the discharge lamp (16) and the choke inductance (17) on the other side, and the capacitor (24) and the choke inductance (17) form a series resonant circuit that is tuned to a higher harmonic of the clock frequency.
    • 本发明涉及一种用于放电灯(16)的镇流器,包括直流电源相位(2),以高频时钟频率工作的半导体开关(10,11),用于改变通过放电灯的电流方向 (16),点火变压器(15),其可以经由串联电容器(14)和扼流圈电感(17)提供直流供电相(2)的直流电流,该扼流圈电感连接到 放电灯(16)的放电,所述电极不连接到点火变压器(15)。 为了提高放电灯(16)的点火可靠性,将串联电容器(14)的点(27)与点火变压器(15)连接的开关(23)串联连接的电容器(24) )和另一侧的放电灯(16)和扼流圈电感(17)之间的接合点(26),电容器(24)和扼流圈电感(17)形成串联谐振电路 调谐到时钟频率的较高谐波。
    • 39. 发明申请
    • Circuit and method of igniting a high-pressure lamp
    • 点燃高压灯的电路和方法
    • US20050146285A1
    • 2005-07-07
    • US10507181
    • 2003-03-10
    • Peter Lurkens
    • Peter Lurkens
    • H05B41/24H05B41/18H05B41/288H05B41/36
    • H05B41/2883Y02B20/204
    • The invention relates to an electronic circuit for igniting a high-pressure lamp. A resonant circuit 13 of the circuit is used to supply the ignition voltage for the high-pressure lamp. To enable an exact adjustment of the resonance frequency in the resonant circuit, it is proposed that the circuit also comprises converter 12 for generating an alternating voltage with which the resonant circuit 13 is excited and an oscillator 14, 16, 17 for driving the converter 12, the fundamental frequency of the output voltage of the oscillator being at least in proximity to an integral fraction of the resonance frequency of the resonant circuit 13. Finally, it is proposed that the circuit includes a feedback 17 from the resonant circuit 13 to the oscillator 14, 16, 17, whereby the fundamental frequency of the output voltage of the oscillator is so tuned that the resulting frequency of the output voltage of the oscillator corresponds substantially exactly to the integral fraction of the resonance frequency. The invention also relates to a corresponding lighting installation and a corresponding method.
    • 本发明涉及一种用于点燃高压灯的电子电路。 电路的谐振电路13用于提供高压灯的点火电压。 为了能够精确地调整谐振电路中的谐振频率,建议该电路还包括用于产生谐振电路13被激励的交流电压的转换器12和用于驱动转换器12的振荡器14,16,17 振荡器的输出电压的基频至少接近谐振电路13的谐振频率的积分分数。 最后,提出该电路包括从谐振电路13到振荡器14,16,17的反馈17,由此振荡器的输出电压的基频如此调谐,使得所得到的输出电压的频率 振荡器基本上完全对应于共振频率的积分分数。 本发明还涉及相应的照明装置和相应的方法。
    • 40. 发明申请
    • CHARGE PUMP CIRCUIT TO OPERATE CONTROL CIRCUIT
    • 充电泵电路操作控制电路
    • US20050146283A1
    • 2005-07-07
    • US10751154
    • 2004-01-02
    • Louis Nerone
    • Louis Nerone
    • H05B41/24H02M3/07H03K3/353H05B41/23H05B41/282H05B41/288H05B41/292H05B39/04
    • H05B41/2925H05B41/2825H05B41/2881
    • In accordance with one aspect of the present application a ballast for operating a lamp includes an inverter circuit configured to generate a control signal. A resonant circuit is configured for operational coupling to the inverter circuit and to the lamp to generate resonant voltage in response to receiving the control signal from the inverter circuit. A clamping circuit is operationally coupled to the resonant circuit to limit the voltage across the resonant circuit. A multiplier circuit is operationally coupled to the resonant circuit to boost the voltage clamped by the clamping circuit to a value sufficient to permit starting of the lamp. A pulsing circuit includes a power controller to pulse the inverter “ON” and “OFF,” and a charge pump circuit to operate the power controller. The charge pump circuit is operationally coupled to the clamping circuit to derive electrical power from the clamping circuit.
    • 根据本申请的一个方面,用于操作灯的镇流器包括被配置为产生控制信号的逆变器电路。 谐振电路被配置为响应于接收到来自逆变器电路的控制信号而与逆变器电路和灯的工作耦合以产生谐振电压。 钳位电路可操作地耦合到谐振电路以限制谐振电路两端的电压。 乘法器电路可操作地耦合到谐振电路,以将由钳位电路钳位的电压升高到足以允许灯起动的值。 脉冲电路包括用于对逆变器“ON”和“OFF”脉冲的功率控制器以及用于操作功率控制器的电荷泵电路。 电荷泵电路可操作地耦合到钳位电路以从钳位电路导出电力。