| 摘要 |
A driving arrangement for a plurality of light emitting diodes (LEDs), comprising a first power supply line (Vcc), a second power supply line (GND) and a set of signal lines (1a, 1b, 1c) for carrying brightness intensity and or chromatic information for the plurality of light emitting diodes (54). In a first possible configuration of use, the first (Vcc) and second (GND) power supply line jointly supply power to an “active” lighting source and the light emitting diodes (54) are driven as a function of the brightness intensity information provided via the signal lines (1a, 1b, 1c). In a second possible configuration of use for driving a “passive” source, the second power supply line (GND) is not used and the brightness of the light emitting diodes (54) is controlled by switching signals applied via the first power supply line (Vcc) and the set of signal lines (1a, 1b, 1c).
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