System and method for powering and controlling a solid state lighting unit

Systeme et procede d'alimentation et de commande d'une unite d'eclairage a semi-conducteur


The present disclosure provides a lighting system. In one example, the lighting system includes a circuit board including a plurality of light emitting groups and an integrated circuit electrically coupled to the light emitting groups and configured to receive a rectified sine waveform of a power source. The integrated circuit is configured to divide a half cycle of the rectified sine waveform into a plurality of voltage regions. The integrated circuit is also configured to turn on or off a number of the light emitting groups based on a voltage value in one of the voltage regions of the rectified sine waveform.




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