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2-Stage LED Driver With Multi-Channel Constant Current CLL Resonant Converter
A 2-stage LED driver is proposed, which is composed by a Buck converter and a multi-channel constant current CLL resonant converter. The CLL resonant converter is unregulated and is always working at the optimal point to achieve the best efficiency. The current of one specific LED string is sensed for feedback control to tune the duty cycle of Buck...
Published: 8/12/2014   |   Inventor(s): Xuebing Chen, Daocheng Huang, Qiang Li, Fred Lee
Category(s): Electrical, Engineering