Title:
ALTERNATING CURRENT SOURCE DIRECT DRIVING LED LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/204315
Kind Code:
A1
Abstract:
An alternating current source direct driving LED lighting device is disclosed. The device comprises: a light-emitting unit which has a first electrolytic capacitor, and which receives a rectified alternating current voltage so as to adjust a first constant current, thereby emitting an LED array; a charging/discharging unit, which receives the adjusted first constant current so as to adjust second to fourth constant currents, thereby respectively charging/discharging second to fourth electrolytic capacitors embedded therein; a discharge LED path unit for forming a path through which a voltage charged in the charging/discharging unit is discharged to the light-emitting unit; and a current driving unit which receives the adjusted first to fourth constant currents so as to use first to fourth reference voltages, thereby forming first to fourth channels, and which controls current delivery.
Inventors:
GONG MYEONG-KOOK (KR)
GONG DA-YOUNG (KR)
GONG DA-YOUNG (KR)
Application Number:
PCT/KR2019/018768
Publication Date:
October 08, 2020
Filing Date:
December 31, 2019
Export Citation:
Assignee:
GONG MYEONG KOOK (KR)
GONG DA YOUNG (KR)
GONG DA YOUNG (KR)
International Classes:
H05B44/00; H05B45/44; H05B45/345; H05B45/59
Domestic Patent References:
| WO2015068978A1 | 2015-05-14 |
Foreign References:
| KR20180071293A | 2018-06-27 | |||
| KR20160071827A | 2016-06-22 | |||
| KR20130091461A | 2013-08-19 | |||
| US20140346959A1 | 2014-11-27 |
Other References:
See also references of EP 3952614A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
Download PDF: