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    • 67. 发明公开
    • AC delay angle control for energizing a lamp
    • Wechselstromverzögerungswinkelzur Ansteuerung von Lampen
    • EP2170018A1
    • 2010-03-31
    • EP09012258.1
    • 2009-09-28
    • OSRAM-SYLVANIA INC.
    • Imam, Afroz M.Kheraluwala, MustansirThangavelu, Sivakumar
    • H05B41/04H05B41/288
    • H05B39/08H05B41/46
    • A control circuit for a lamp. The control circuit is used in conjunction with an alternating current (AC) variable voltage power source to energize the lamp. The control circuit includes a voltage sensing component for sensing the voltage of an voltage input signal from the power source for energizing the lamp. The control circuit includes a controller configured to estimate a delay angle as a linear function of the sensed voltage. The control circuit includes an AC converter for modifying the voltage input signal according to the estimated delay angle to generate an AC voltage output signal having a constant root mean square voltage for energizing the lamp.
    • 一种用于灯的控制电路。 控制电路与交流(AC)可变电压电源结合使用以对灯进行通电。 控制电路包括用于感测来自电源的电压输入信号的电压的电压感测部件,用于激励灯。 控制电路包括被配置为将延迟角估计为感测电压的线性函数的控制器。 控制电路包括AC转换器,用于根据所估计的延迟角修正电压输入信号,以产生具有恒定均方根电压的AC电压输出信号,以激励灯。