Title:
ＬＥＤ照明装置
Document Type and Number:
Japanese Patent JP5547798
Kind Code:
B2
Abstract:
The LED lighting apparatus includes: a rectification block; an LED block including a first light emitting group and a second light emitting group; a charging/discharging block configured to charge electric charges in a charging period, and discharge electric charges in a discharging period; a driving control unit configured to determine a voltage level of a rectified voltage, controls a path selection switch to connect the rectification block to the LED block and controls the charging/discharging block to charge electric charges in the charging period, and controls the path selection switch to connect the rectification block to a ground and controls the charging/discharging block to discharge electric charges from the charging/discharging block to the LED block in the discharging period; and a path selection switch configured to connect the rectification block to the LED block in the charging period, and connect the rectification block to the ground in the discharging period.
Inventors:
尹 聖 復
Gold Size Field
Gold 貞 Peace
Gold Size Field
Gold 貞 Peace
Application Number:
JP2012287181A
Publication Date:
July 16, 2014
Filing Date:
December 28, 2012
Export Citation:
Assignee:
POSCO El Edie Company Limited
International Classes:
H05B37/02; H05B44/00
Attorney, Agent or Firm:
Patent business corporation Takahashi and wood and partners