ILLUMINATION APPARATUS COMPRISING SEMICONDUCTOR LIGHT EMITTING DIODES

摘要

PURPOSE: A lighting device applying a semiconductor light emitting device is provided to emit light from a plurality of light emitting devices by properly changing an electrical connection between the light emitting devices. CONSTITUTION: A rectifying unit(100) receives AC power and generates a driving voltage. A control signal generating unit(110) generates a switch control signal and a current control signal. A total current control unit(140) generates a target voltage that is an analog signal. A current control unit(130) includes a plurality of driving current control units. A light emitting unit(150) includes light emitting devices to emit light. [Reference numerals] (100) Rectifying unit; (110) Control signal generating unit; (131) First driving current control unit; (132) Second driving current control unit; (133) Third driving current control unit; (134) Fourth driving current control unit; (140) Total current control unit