A coilless driving apparatus for light emitting diode and light emitting diode lighting apparatus

摘要

PURPOSE: A coilless light emitting diode driving circuit and a light emitting diode device including the same are provided to reduce the size and the weight of the light emitting diode driving circuit by including a PCB transformer. CONSTITUTION: A PCB transformer(200) changes an AC voltage into a preset voltage. An AC voltage is inputted from a power source. An AC/DC converter(300) drives a light emitting diode of an LED unit. A smoothing unit(400) supplies a DC voltage from the AC/DC converter to the LED unit. A coil pattern is formed on a multilayer PCB. [Reference numerals] (1000) LED unit; (200) PCB transformer; (300) AC/DC converter; (400) Smoothing unit;