Title:
INTELLIGENT POWER-SAVING LED LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/092551
Kind Code:
A1
Abstract:
The present invention relates to an intelligent power-saving LED lighting device wherein in a lighting device, such as a street lamp, comprising a plurality of LED modules, the number of LEDs of the LED modules that are turned on is reduced as the outside temperature decreases, whereby energy is saved while brightness is maintained constant. Specifically, the present invention relates to an intelligent power-saving LED lighting device wherein as the potential at a particular point of a temperature change detector is decreased by a thermistor, comparators provide a predetermined reference potential and successively provide switching element driving signals to switching elements, and thereby particular LEDs are successively turned off.
Inventors:
LEE DONG WOOK (KR)
Application Number:
PCT/KR2021/012280
Publication Date:
May 05, 2022
Filing Date:
September 09, 2021
Export Citation:
Assignee:
KEUMKYUNG LIGHTING CO LTD (KR)
LEE DONG WOOK (KR)
LEE DONG WOOK (KR)
International Classes:
H05B45/18; F21S8/08; F21V23/00; F21V23/04; H05B45/30; F21Y115/10
Foreign References:
| JP2020013642A | 2020-01-23 | |||
| KR20140123175A | 2014-10-22 | |||
| JP2015145224A | 2015-08-13 | |||
| KR20140045058A | 2014-04-16 | |||
| US20070108843A1 | 2007-05-17 |
Attorney, Agent or Firm:
LIM, Pyoung-Sup (KR)
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