System Analysis of DCM Dual-Loop Controlled Light-Emitting-Diode Boost Driver

Author

Lin, Ray-Lee ; Chen, Yi-Fan

Author_Institution

Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2009

fDate

4-8 Oct. 2009

Firstpage

1

Lastpage

6

Abstract

This paper presents the system analysis of the discontinuous-conduction mode (DCM) dual-loop controlled light-emitting-diode (LED) boost driver. The equivalent circuit models of the LED boost drivers are constructed to derive the system transfer functions for predicting the system performance, including the loop gain, line regulation and load regulation. The corresponding Bode diagrams are plotted and compared with those of the SIMPLIS^reg simulations and measured results to validate the derived transfer functions.

Keywords

Bode diagrams; driver circuits; equivalent circuits; light emitting diodes; power convertors; transfer functions; Bode diagram; LED; SIMPLIS simulator; discontinuous conduction mode; dual loop controlled light emitting diode boost driver; equivalent circuit; line regulation; load regulation; loop gain; transfer function; Circuit simulation; Control systems; Driver circuits; Equivalent circuits; Light emitting diodes; Lighting control; Performance gain; Predictive models; System performance; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE

Conference_Location

Houston, TX

ISSN

0197-2618

Print_ISBN

978-1-4244-3475-6

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2009.5324878

Filename

5324878