Title:
ELECTRONIC BALLAST-TYPE LED FLUORESCENT LAMP
Document Type and Number:
WIPO Patent Application WO/2011/155712
Kind Code:
A9
Abstract:
The present invention relates to an electronic ballast-type LED fluorescent lamp comprising: a unit prohibiting excess current which is configured with a pair of fuses facing each other and prohibits excess current equal to or greater than a determined value; a filament unit including an inductor which is connected to the output terminals of the pair of fuses constituting the unit for prohibiting excess current; a unit for matching impedance which is configured with inductors facing each other and connected to both terminals of the inductor of the filament unit, respectively, and matching the output impedance of an electronic ballast and the input impedance of an LED lamp in an LED fluorescent lamp; a DC rectifier unit configured with a bridge diode connected to the impedance matching unit for converting input AC drive power to DC drive power for an LED fluorescent lamp; and a unit for generating constant DC voltage which is configured with a condenser installed and connected between the input and output terminals of the bridge diode of the DC rectifier unit, and charges/discharges the converted DC source to generate constant DC power. The lamp of the present invention can be used by installing a general-purpose LED module into a fluorescent lamp socket without the use of an additional device.
Inventors:
LEE JUNG HANG (KR)
Application Number:
PCT/KR2011/003655
Publication Date:
March 08, 2012
Filing Date:
May 17, 2011
Export Citation:
Assignee:
LEE JUNG HANG (KR)
PARK SUNG JIN (KR)
SJHIGHTECH CO LTD (KR)
PARK SUNG JIN (KR)
SJHIGHTECH CO LTD (KR)
International Classes:
H05B37/02
Attorney, Agent or Firm:
HONG, Byung-Eui (KR)
홍병의 (KR)
홍병의 (KR)
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