LED lamp driver using a converter with wide range conversion microcontroller-based

Author

De Britto, Jonas R. ; De Freitas, Luiz C. ; Farias, Valdeir J. ; Coelho, Ernane A A ; Vieira, João B., Jr.

Author_Institution

Power Electron. Res. Group, Fed. Univ. of Uberlandia, Uberlandia

fYear

2008

fDate

10-13 Nov. 2008

Firstpage

1988

Lastpage

1993

Abstract

In recent years, high levels of luminous efficiency, and the long time of life, are an attraction of LEDs for use in several illumination applications. This paper presents an alternative to drive LEDs, where the main focus is to enable the drive LED lamps with different values of operation voltage from an universal input voltage range or battery. Therefore, a new topology step-up/down with wide range conversion called Boost-Buck2 is proposed. Mathematical analysis and experimental results are presented to the drive of a LED Lamp of 11W built with 10 Creereg XLampreg XR-E LED.

Keywords

LED lamps; driver circuits; microcontrollers; power convertors; LED lamp driver; boost-buck2 converter; light emitting diode; luminous efficiency; microcontroller; power 11 W; step-down topology; step-up topology; Batteries; Brightness; Driver circuits; Filters; LED lamps; Light emitting diodes; Light sources; Lighting; Solid state circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE

Conference_Location

Orlando, FL

ISSN

1553-572X

Print_ISBN

978-1-4244-1767-4

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2008.4758261

Filename

4758261