DEVICE FOR DRIVING LIGHT EMITTIING DIODE

摘要

PURPOSE: A light emitting diode driving apparatus is provided to operate a plurality of light emitting diodes according to pre-saved data by sensing rectification voltage for each predetermined section, thereby extending the lifetime of a light emitting diode apparatus. CONSTITUTION: A rectifier(100) outputs rectification voltage by receiving AC voltage. A synchronizing and clock signal generator(310) generates synchronizing and clock signals according to the rectification voltage. An operation data storage part(320) stores operation data. A digital controller(330) determines a sub section and outputs a digital driving signal. A digital-analog controller(340) outputs a driving control signal.