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    • 5. 发明公开
    • SCHALTUNGSANORDNUNG ZUM BETREIBEN VON LICHTQUELLEN
    • EP3095298A1
    • 2016-11-23
    • EP14796031.4
    • 2014-11-05
    • OSRAM GmbH
    • HECKMANN, MarkusMÜHLSCHLEGEL, JoachimPOLLISCHANSKY, ThomasSCHMITT, Harald
    • H05B33/08
    • The invention relates to a circuit arrangement for operating light sources, comprising input terminals for inputting a mains voltage, a first rectifier circuit, a boost converter with output terminals, a half-bridge arrangement composed of two switches which is connected to the output terminals of the boost converter, an inductor, the first terminal of which is coupled to the center of the half-bridge, a second rectifier circuit, the first input terminal of which is coupled to the second terminal of the inductor and the second input of which is coupled to at least one of the output terminals of the boost converter, wherein the output terminals of the second rectifier circuit are coupled to the inputs of a current-compensated choke, wherein at least one light source is connected to the output terminals of the current-compensated choke, and the output terminals of the current-compensated choke are coupled to an output terminal of the boost converter via filter capacitors.
    • 用于操作光源的电路装置包括用于电源系统电压的输入端子,第一整流电路,具有输出端子的升压转换器,具有两个开关的半桥装置,其连接到升压转换器的输出端子, 电感,其第一端耦合到半桥的中心点;第二整流电路,其第一输入端耦合到电感的第二端子,其第二输入耦合到 升压转换器的输出端之一。 第二整流电路的输出端子连接到电流补偿电感器的输入端。 至少一个光源连接到电流补偿电感器的输出端子,并且电流补偿电感器的输出端子通过滤波电容器耦合到升压转换器的输出端子。