A universal driving technology for retrofit LED lamp for fluorescent lighting fixtures

Author

Chen, Nan ; Chung, Henry Shu-Hung

Author_Institution

Centre for Power Electron. & Sch. of Energy & Environ., City Univ. of Hong Kong, Kowloon, China

fYear

2012

fDate

5-9 Feb. 2012

Firstpage

980

Lastpage

987

Abstract

An LED lamp driver having its input compatible with different supply sources to drive an LED array is proposed. The driver can be powered by the ac mains, low-frequency electromagnetic ballasts, and high-frequency electronic ballasts. Its input impedance is controlled to meet the operational requirements and conditions of different sources and its output is controlled to deliver the required power to the LED array. The concept of this universal compatibility allows replacement of fluorescent lamps with the proposed retrofit LED lamps without removal or replacement of existing ballasts or modification of the lighting infrastructure. A 20W retrofit LED lamp prototype has been built.

Keywords

LED lamps; driver circuits; lamp accessories; LED array; LED lamp driver; fluorescent lighting fixture; high frequency electronic ballasts; input impedance; low frequency electromagnetic ballasts; power 20 W; retrofit LED lamp; universal driving technology; Electromagnetics; Electronic ballasts; Fluorescent lamps; LED lamps; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE

Conference_Location

Orlando, FL

Print_ISBN

978-1-4577-1215-9

Electronic_ISBN

978-1-4577-1214-2

Type

conf

DOI

10.1109/APEC.2012.6165938

Filename

6165938