Optimal LED array combination for single-loop CCM boost driver

Author

Lin, Ray-Lee ; Liu, Shun-Yao ; Chiang, Hsin-Wei

Author_Institution

Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2012

fDate

7-11 Oct. 2012

Firstpage

1

Lastpage

7

Abstract

This paper presents the optimal light-emitting-diode (LED) array combination for the single-loop continuous-conduction mode (CCM) boost driver. The Taylor series for describing the characteristics of the LED is used to characterize the relationship between the forward voltage and current of LEDs. Moreover, in order to predict the system performance, including system stability and maximum-efficiency power conversion, the equivalent circuit models of the LED boost drivers are constructed to derive the system transfer functions. Finally, the optimal combination of a 120-pcs LED array driven by the employed single-loop CCM boost converter is obtained and verified.

Keywords

circuit stability; driver circuits; equivalent circuits; light emitting diodes; power convertors; series (mathematics); transfer functions; Taylor series; continuous-conduction mode; equivalent circuit model; light-emitting-diode; maximum-efficiency power conversion; optimal LED array combination; single-loop CCM boost converter driver; system stability; system transfer function; Equivalent circuits; Integrated circuit modeling; Light emitting diodes; Mathematical model; Taylor series; Boost converter; CCM; Continuous-conduction-mode; LED Array; Light-emitting-diode; Modeling; Quality factor; Single-loop; System analysis; Taylor series expression;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting (IAS), 2012 IEEE

Conference_Location

Las Vegas, NV

ISSN

0197-2618

Print_ISBN

978-1-4673-0330-9

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2012.6374062

Filename

6374062