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วันอังคารที่ 27 พฤศจิกายน พ.ศ. 2555

LED Driver


LEDs are becoming more prevalent in many lighting applications because it has higher efficiencies than incandescent lamp ,long lifetime ,non-ultraviolet and infrared etc.However a brightness of LEDs depend on current flow through LEDs.So we have to design a driver circuit for supply constant current to LEDs.We research about constant current LEDs Driver based on isolated PFC converterand high efficiency dimable circuit applied to street lighting application.


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