| 摘要 |
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. |
