In this study, the analysis result of power LED characteristic shows that it is more efficient to control a constant current than a constant voltage. And it is described designing of a constant current controller with MCU through analyzing characteris...
In this study, the analysis result of power LED characteristic shows that it is more efficient to control a constant current than a constant voltage. And it is described designing of a constant current controller with MCU through analyzing characteristic of a constant current circuit consisting of buck topology. The validity of theoretical analysis is proved with the analysis result.