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    • 3. 发明授权
    • Driver apparatus for a gas discharge lamp
    • 气体放电灯驱动装置
    • US08076871B2
    • 2011-12-13
    • US12596850
    • 2008-04-18
    • Paulus Adrianus Hypolytus Jozef HuijbrechtsGodfried Cornelius Gerardus Maria Manders
    • Paulus Adrianus Hypolytus Jozef HuijbrechtsGodfried Cornelius Gerardus Maria Manders
    • G05F1/00
    • H05B41/2883H05B41/384Y02B20/206
    • A driver apparatus (100) for driving a gas discharge lamp (L) comprises a commutator circuit (5) having a bridge topology with four switches (T1-T4) controlled by a controller (6), with an inductor (L2) arranged in series with the lamp and a capacitor (C3) arranged in parallel with the lamp, the inductor (L2) and the capacitor (C3) having a parallel resonance frequency fR. In a steady-state mode, the controller drives the four switches (T1-T4) at a relatively low commutation frequency of the order of 100 Hz. For igniting the lamp when it is still hot, the controller drives the four switches (T1-T4) at a first ignition frequency fP1=fR/n1, n1 being an odd integer. For igniting the lamp when it is cold, the controller drives the four switches (T1-T4) at a second ignition frequency fP2=fR/n2, n2 being an odd integer larger than n1.
    • 一种用于驱动气体放电灯(L)的驱动器装置(100),包括具有由控制器(6)控制的四个开关(T1-T4)的桥接拓扑的换向器电路(5),电感器(L2)布置在 与灯并联设置的电容器(C3),电感器(L2)和电容器(C3)具有并联谐振频率fR。 在稳态模式下,控制器以相对较低的100Hz量级的换向频率驱动四个开关(T1-T4)。 为了在仍然很热时点亮灯,控制器以第一点火频率fP1 = fR / n1驱动四个开关(T1-T4),n1为奇整数。 为了在冷时点亮灯,控制器以第二个点火频率fP2 = fR / n2驱动四个开关(T1-T4),n2是大于n1的奇整数。