McDermott Will & Emery LLP
Light emitting diode driving apparatus
There is provided a light emitting diode (LED) driving apparatus configured such that a waveform of current input to an LED follows a sine wave, the LED driving apparatus including, a switching unit switching an LED unit having a plurality of LEDs receiving rectified power and emitting light, a driving control unit controlling the switching of the switching unit according to a voltage level of the rectified power, a current limiting unit limiting current flowing in the LED unit, and an adjusting unit adjusting current limitation of the current limiting unit according to the voltage level of the rectified power.
Samsung Electro-Mechanics Co., Ltd.
H
H05B
inventional
Chan Woo Yun Joong Chang Seok Jong Tae Je Hyeon
Park Lee Lee Hwang Yu