A LED DIMMER, A LED LIGHTING APPARATUS COMPRISING THE SAME, AND A DIMMING METHOD FOR THE LED LIGHTING APPARATUS

摘要

Disclosed are a light-emitting diode (LED) dimmer for changing the illuminance of an LED light-emitting unit according to the switching of a power switch, an LED lighting device comprising the same, and a method for controlling the dimming of the LED lighting device. According to the switching of the power switch, the operation period of the LED lighting apparatus is changed, and a dimming level of a next operation period is determined on the basis of a dimming level of a previous operation period and time when the power switch is on. If the time when the power switch is on during the previous operation period is less than a predetermined first reference time or more than a predetermined second reference time, the dimming level of the next operation period is maintained at the dimming level of the previous operation period. On the other end, if the time when the power switch is on during the previous operation period is more than the predetermined first reference time or less than the predetermined second reference time, the dimming level of the next operation period is set to a dimming level corresponding to the next state of the dimming level of the previous operation period. [Reference numerals] (1000) LED lighting device;(110) Power switch;(200) Driving voltage supplying unit;(600) LED lighting unit;(900) LED dimmer