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    • 9. 发明授权
    • Gas-discharge lamp controller utilizing a novel preheating phase control mechanism
    • 采用新型预热相位控制机构的气体放电灯控制器
    • US08450940B2
    • 2013-05-28
    • US12784039
    • 2010-05-20
    • Yen-Ping WangPei-Yuan ChenKo-Ming Lin
    • Yen-Ping WangPei-Yuan ChenKo-Ming Lin
    • H05B37/02
    • H05B41/298
    • A gas-discharge lamp controller utilizing a novel preheating phase control mechanism, having: a supply voltage tracking reference voltages generator, biased between a supply voltage and a reference ground, for generating a first reference voltage which is proportional to the supply voltage; and a control unit, for generating a high threshold signal according to the first reference voltage and a saw-tooth signal, the peak value of the saw-tooth signal being proportional to the supply voltage, wherein the control unit has a preheating phase, the high threshold signal is coupled with the first reference voltage during the preheating phase, and the time duration of the preheating phase is set by a predetermined number of periods of the saw-tooth signal.
    • 一种利用新型预热相位控制机构的气体放电灯控制器,具有:供电电压跟踪参考电压发生器,其偏置在电源电压和参考地之间,用于产生与电源电压成比例的第一参考电压; 以及控制单元,用于根据第一参考电压和锯齿信号产生高阈值信号,锯齿信号的峰值与电源电压成比例,其中控制单元具有预热阶段, 高阈值信号在预热阶段与第一参考电压耦合,并且预热阶段的持续时间被设定为预定数量的锯齿信号周期。