Operating circuit for a discharge lamp
    3.
    发明授权
    Operating circuit for a discharge lamp 失效
    放电灯的操作电路

    公开(公告)号:US5198728A

    公开(公告)日:1993-03-30

    申请号:US808665

    申请日:1991-12-17

    CPC分类号: H05B41/392 H05B41/2882

    摘要: A switched mode power supply (SNT) is coupled to a source of d-c energy (U.sub.Batt) and provides electrical energy to a lamp within widely varying limits. The switching conditions of the switched mode power supply are controlled by an operation control circuit (ADD) which has a current sensing resistor, serially connected to the lamp, to provide a lamp current signal, and a voltage divider (R2, R3) connected across the lamp to sense lamp voltage and provide a lamp voltage signal. The lamp current signal and the lamp voltage signal are added, compared in a comparator formed by an operational amplifier (IC2-A), with respect to a reference setting power level, and the output signal from the comparator is coupled back to the switched mode power supply to control the switching rate thereof, based on the instantaneous lamp current and lamp voltage. Excess voltage can be compensated by providing either an active semiconductor switching network (T1, T2, FIG. 3) or a passive semiconductor switch (ZD), which affects the added current-voltage signal applied to the comparator (IC2-A).

    摘要翻译: 开关模式电源(SNT)耦合到d-c能量源(UBatt),并在广泛变化的范围内为灯提供电能。 开关模式电源的开关条件由具有串联连接到灯的电流检测电阻器以提供灯电流信号的操作控制电路(ADD)控制,并且分压器(R2,R3)跨越 该灯用于感测灯电压并提供灯电压信号。 在由运算放大器(IC2-A)形成的比较器中比较相对于参考设定功率电平的灯电流信号和灯电压信号,并且来自比较器的输出信号被耦合回到切换模式 基于瞬时灯电流和灯电压来控制其开关速率的电源。 可以通过提供影响施加到比较器(IC2-A)的附加电流 - 电压信号的有源半导体开关网络(T1,T2,图3)或无源半导体开关(ZD)来补偿过大的电压。

    Method to operate a discharge lamp, and circuit arrangement for
operation of the discharge lamp
    4.
    发明授权
    Method to operate a discharge lamp, and circuit arrangement for operation of the discharge lamp 失效
    在发生声共振时操作不稳定操作的放电灯的方法和用于放电灯的操作电路的方法

    公开(公告)号:US5680015A

    公开(公告)日:1997-10-21

    申请号:US539882

    申请日:1995-10-06

    CPC分类号: H05B41/2928 Y02B20/208

    摘要: To operate a discharge lamp, and more particularly a low-power high-pressure discharge lamp, only in quiet or stable lamp operation, a microprocessor (MC) is provided which establishes a test phase of limited time duration during which the frequency of operation of the lamp is varied by frequency modulation within a predetermined range. Lamp operation is monitored, for example by deriving a test voltage across a coupling capacitor (C6) receiving lamp current. If the monitored voltage, which is representative of lamp operation, shows that the lamp operates quietly and stably, the then pertaining frequency is stored by the microprocessor and, after the test phase is finished, the lamp is operated within a frequency window formed by the largest number of contiguous modulation frequencies which are suitable for, or result in, stable lamp operation. The test phase is carried out repetitively, at least upon each energization of the lamp, so that different operating characteristics of the lamp (e.g. due to changes in temperature, aging, or the like) are compensated.

    摘要翻译: 为了操作放电灯,特别是低功率高压放电灯,仅在安静或稳定的灯操作中,提供微处理器(MC),其建立有限持续时间的测试阶段,在该期间,操作频率 该灯由预定范围内的频率调制变化。 监视灯操作,例如通过在接收灯电流的耦合电容器(C6)上导出测试电压。 如果代表灯操作的监测电压表明灯静音稳定地运行,则微处理器存储随之而来的频率,并且在测试阶段完成之后,灯在由 适用于或导致稳定的灯操作的最大数量的连续调制频率。 至少在灯的每次通电时,重复地执行测试阶段,从而补偿灯的不同操作特性(例如由于温度,老化等的变化)。

    Discharge lamp typically a sodium high-pressure discharge lamp, from an
a-c power network
    5.
    发明授权
    Discharge lamp typically a sodium high-pressure discharge lamp, from an a-c power network 失效
    放电灯通常是来自a-c电力网络的钠高压放电灯

    公开(公告)号:US5739644A

    公开(公告)日:1998-04-14

    申请号:US399750

    申请日:1995-03-07

    摘要: To provide for effective control of a discharge lamp, typically, a sodium gh pressure discharge lamp, which operates in two phases, namely, a power pulse phase, followed by a holding phase, without extensive and complex electronic circuitry, two individual oscillator systems are provided, one for each phase; the oscillator systems include a first power burst oscillator formed as a first half bridge by two transistors (T1, T2), and an individual connecting current limiting inductance (L1) to the lamp (E), and a second oscillator including a two-transistor second half bridge (T3, T4) and an individual current limiting inductance (L2) coupled to the lamp. The respective oscillators are controlled, in a closed control loop, by a burst generator (BG) and a holding pulse generator (SG), each of which provide their signals to a logic circuit (LK) which provides for exclusive control of the respective first or second half bridge. A lamp voltage sensing circuit (C4, R2) taps lamp operating voltage, which is compared with a command signal to control through a repetition frequency control generator (WG), the recurrence rate of the bursts from the power bursts generator (BG). The lamp starting circuit (4) can also be controlled from the sensed signal by comparison with a reference in a second comparator (K) and suitably applied to an ignition circuit by an ignition monitoring logic. A pair of electrolytic capacitors of essentially the same value is connected across the d-c supply and their midjunction to the lamp.

    摘要翻译: 为了提供有效控制放电灯(通常为两相工作的钠高压放电灯),即功率脉冲相位,随后是保持阶段,没有广泛和复杂的电子电路,两个单独的振荡器系统是 为每个阶段提供一个; 振荡器系统包括通过两个晶体管(T1,T2)形成为第一半桥的第一功率脉冲串振荡器和与灯(E)的单独的连接限流电感(L1),以及包括双晶体管 第二半桥(T3,T4)和耦合到灯的单独的限流电感(L2)。 相应的振荡器在封闭的控制回路中被脉冲串发生器(BG)和保持脉冲发生器(SG)控制,每个脉冲发生器(SG)向逻辑电路(LK)提供信号,逻辑电路(LK)提供对相应的第一 或后半桥。 灯电压检测电路(C4,R2)将灯操作电压与通过重复频率控制发生器(WG)控制的命令信号进行比较,来自功率脉冲串发生器(BG)的脉冲串的再现速率。 灯启动电路(4)也可以通过与第二比较器(K)中的参考值进行比较,从感测信号进行控制,并通过点火监控逻辑适当地施加到点火电路。 一对基本相同值的电解电容器连接在d-c电源及其与中间连接的灯上。

    High-pressure discharge lamp with pulsed inverter operating circuit, and
method of operating a discharge lamp
    6.
    发明授权
    High-pressure discharge lamp with pulsed inverter operating circuit, and method of operating a discharge lamp 失效
    具有脉冲逆变器工作电路的高压放电灯,以及操作放电灯的方法

    公开(公告)号:US5343125A

    公开(公告)日:1994-08-30

    申请号:US786502

    申请日:1991-11-01

    摘要: To ensure ignition of a high-pressure discharge lamp, for example a metal vapor halogen high-pressure dicharge lamp which has an ignition circuit, and is operated by direct current from an inverter circuit controlled for pulse width modulation, current flow to the lamp is extended in time upon initial energization thereof so that an initial hot spot which forms on an electrode can remain hot to establish a stabilized arc. This extension of current flow can be obtained by an R/C circuit in parallel to the output or storage capacitor (C.sub.A) of the inverter circuit (FIG. 1) or by an NTC resistor (H) in series with the lamp, or by a resistor which is short-circuited by a relay contact as the lamp operates, or the like.

    摘要翻译: 为了确保高压放电灯点燃,例如具有点火电路的金属蒸气卤素高压千分表灯,并且由控制脉冲宽度调制的逆变器电路的直流电流操作,到灯的电流是 在初始通电时延长时间,使得在电极上形成的初始热点可以保持热,以建立稳定的电弧。 电流流动的这种扩展可以通过与逆变器电路(图1)的输出或存储电容器(CA)并联的R / C电路或与灯串联的NTC电阻器(H),或通过 当灯操作时由继电器触点短路的电阻器等。

    Circuit arrangement for operation of discharge lamps, and method for operation of discharge lamps
    7.
    发明授权
    Circuit arrangement for operation of discharge lamps, and method for operation of discharge lamps 有权
    放电灯操作的电路布置及放电灯的操作方法

    公开(公告)号:US07994734B2

    公开(公告)日:2011-08-09

    申请号:US12519122

    申请日:2006-12-13

    IPC分类号: G05F1/00

    CPC分类号: H05B41/2928 Y02B20/208

    摘要: A circuit arrangement for operating a discharge lamp, wherein the circuit arrangement comprises a commutation device, which has an input which is coupled to a DC source, and has an output which can be coupled to a discharge lamp. The commutation device is designed in such a way that it couples the DC source to the output, and the polarity at which the DC source is coupled to the output can be commutated by a control device. The control device has a sync input, and the polarity of the DC source is commutated in synchronism with sync pulses of a sync signal which can be applied at the sync input. The control device has a measuring input, which is coupled to a measuring device which is designed to provide a measured value which is a measure of the size of electrode peaks. The control device suppresses at least one commutation if the measured value overshoots or undershoots a predetermined threshold value.

    摘要翻译: 一种用于操作放电灯的电路装置,其中电路装置包括一个换向装置,该换向装置具有耦合到直流电源的输入端,并且具有可与放电灯耦合的输出端。 换向装置被设计为使得DC源耦合到输出,并且DC源耦合到输出的极性可以由控制装置换向。 控制装置具有同步输入,并且DC源的极性与可以在同步输入端施加的同步信号的同步脉冲同步地换向。 控制装置具有测量输入,该测量输入耦合到测量装置,该测量装置被设计成提供作为电极峰值尺寸的量度的测量值。 如果测量值超过或低于预定阈值,则控制装置抑制至少一个换向。

    CIRCUIT ARRANGEMENT FOR OPERATING DISCHARGE LAMPS AND METHOD FOR OPERATING DISCHARGE LAMPS
    8.
    发明申请
    CIRCUIT ARRANGEMENT FOR OPERATING DISCHARGE LAMPS AND METHOD FOR OPERATING DISCHARGE LAMPS 有权
    放电灯操作的电路布置及放电灯的操作方法

    公开(公告)号:US20100171434A1

    公开(公告)日:2010-07-08

    申请号:US12602179

    申请日:2007-06-14

    IPC分类号: H05B41/36

    摘要: A circuit arrangement for operating a discharge lamp is provided. The circuit arrangement may include a commutating device, which is configured to exhibit an input which is coupled to a direct-current source and has an output which can be coupled to a discharge lamp; the commutating device being configured in such a manner that it couples the direct-current source to the output and the polarity with which the direct-current source is coupled to the output can be commutated by a control device; the control device including a measurement input which is coupled to a measuring device which is configured to deliver a measurement value which is a measure of the magnitude of a lamp voltage; wherein the control device is configured to control the commutating device in such a manner that the polarity at which a higher lamp voltage prevails is coupled longer to the output.

    摘要翻译: 提供了用于操作放电灯的电路装置。 电路装置可以包括整流装置,其被配置为展现耦合到直流电源的输入端并具有能够耦合到放电灯的输出端; 所述换向装置被构造成使得其将所述直流源耦合到所述输出,并且所述直流源耦合到所述输出的极性可由控制装置换向; 所述控制装置包括耦合到测量装置的测量输入,所述测量装置被配置为传送作为灯电压的大小的量度的测量值; 其中所述控制装置被配置为以这样的方式控制所述换向装置,使得较高的灯电压占优势的极性与所述输出更长地耦合。

    Circuit arrangement for operating discharge lamps and method for operating discharge lamps
    9.
    发明授权
    Circuit arrangement for operating discharge lamps and method for operating discharge lamps 有权
    操作放电灯的电路装置及放电灯的操作方法

    公开(公告)号:US08362708B2

    公开(公告)日:2013-01-29

    申请号:US12602179

    申请日:2007-06-14

    IPC分类号: H05B37/02

    摘要: A circuit arrangement for operating a discharge lamp is provided. The circuit arrangement may include a commutating device, which is configured to exhibit an input which is coupled to a direct-current source and has an output which can be coupled to a discharge lamp; the commutating device being configured in such a manner that it couples the direct-current source to the output and the polarity with which the direct-current source is coupled to the output can be commutated by a control device; the control device including a measurement input which is coupled to a measuring device which is configured to deliver a measurement value which is a measure of the magnitude of a lamp voltage; wherein the control device is configured to control the commutating device in such a manner that the polarity at which a higher lamp voltage prevails is coupled longer to the output.

    摘要翻译: 提供了用于操作放电灯的电路装置。 电路装置可以包括整流装置,其被配置为展现耦合到直流电源的输入端并具有能够耦合到放电灯的输出端; 所述换向装置被构造成使得其将所述直流源耦合到所述输出,并且所述直流源耦合到所述输出的极性可由控制装置换向; 所述控制装置包括耦合到测量装置的测量输入,所述测量装置被配置为传送作为灯电压的大小的量度的测量值; 其中所述控制装置被配置为以这样的方式控制所述换向装置,使得较高的灯电压占优势的极性与所述输出更长地耦合。

    CIRCUIT ASSEMBLY AND METHOD FOR OPERATING A HIGH PRESSURE DISCHARGE LAMP
    10.
    发明申请
    CIRCUIT ASSEMBLY AND METHOD FOR OPERATING A HIGH PRESSURE DISCHARGE LAMP 失效
    电路组件和操作高压放电灯的方法

    公开(公告)号:US20100270934A1

    公开(公告)日:2010-10-28

    申请号:US12742447

    申请日:2007-11-13

    IPC分类号: H05B41/36

    摘要: A circuit arrangement for operating a high-pressure discharge lamp with an operating circuit for the high-pressure discharge lamp with an input for receiving a switch-on/switch-off signal for the high-pressure discharge lamp and at least one output for providing an operating signal to the high-pressure discharge lamp, wherein the operating circuit is designed to reduce the power of the operating signal provided at the at least one output once a switch-off signal has been received at its input, wherein the operating circuit furthermore designed to provide the operating signal as an AC signal above a predeterminable power threshold value and as a quasi DC signal below the predeterminable power threshold value.

    摘要翻译: 一种用于操作具有用于高压放电灯的操作电路的高压放电灯的电路装置,具有用于接收高压放电灯的接通/关断信号的输入端和至少一个用于提供 操作信号到高压放电灯,其中所述操作电路被设计成一旦在其输入处接收到关断信号,就降低在所述至少一个输出处提供的操作信号的功率,其中所述操作电路进一步 旨在将操作信号提供为高于可预定功率阈值的AC信号,并将其作为低于可预定功率阈值的准DC信号。