McDermott Will & Emery LLP
Apparatus for driving light emitting diode
There is provided an apparatus for driving a light emitting diode (LED), performing switching-operation with respect to a pair of LED groups by a phase difference of 180 degrees. The apparatus includes a switching unit that alternately switches a first LED unit and a second LED unit of at least one pair of LED units emitting light by receiving rectified power, in accordance with a predetermined phase difference, a current limiting unit that limits a current flowing in the at least one pair of LED units through the switching of the switching unit, and a driving control unit that controls switching driving of the switching unit in accordance with a voltage level of the rectified power.
Samsung Electro-Mechanics Co., Ltd.
H
H05B
inventional
Je Hyeon Sang Hyun Deuk Hee Yun Joong
Yu Cha Park Lee