LED DRIVER AND LIGHTING SYSTEM USING THE SAME

摘要

An apparatus for driving at least one light-emitting diode (LED), comprising: a current switching unit enabled to switch an input current signal through current pulse width modulation, control peaks of the switched current signal and adjust duty cycle of the switched current signal to provide an intermediate current signal and amplify the intermediate current signal as per requirements of the at least one LED to provide an output current signal.