Design of LED driver circuits with single-stage PFC in CCM and DCM

Author

Chern, Tzuen-Lih ; Huang, Tsung-Mou ; Wu, Wen-Yuen ; Lin, Whei-Min ; Hwang, Guan-Shyong

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat Sen Univ., Kaosiung, Taiwan

fYear

2011

fDate

21-23 June 2011

Firstpage

2358

Lastpage

2363

Abstract

LED with constant output current and power factor correction are presented in this paper, the non-isolated Buck converters are used for the LED drivers, according to different operating mode of inductor current, power factor correction is realized with both of Voltage Follower Control under DCM and Nonlinear Carrier Control under CCM. NLC needn´t the multiplier which is used in traditional power factor correction, therefore, the cost of system can be reduced. The designed circuits are verified by simulations of IsSpice software and practical experiments, these results show that the proposed approaches achieved the goal of higher PF and constant output current.

Keywords

driver circuits; light emitting diodes; power convertors; power factor correction; voltage control; CCM; DCM; IsSpice software; LED driver circuits; constant output current; inductor current; nonisolated buck converters; nonlinear carrier control; operating mode; power factor correction; single-stage PFC; voltage follower control; Integrated circuit modeling; Light emitting diodes; Resistors; Software; Switches; Voltage control; Buck Converter; LED Driver; Nonlinear Carrier Control (NLC); Power Factor Correction;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on

Conference_Location

Beijing

ISSN

pending

Print_ISBN

978-1-4244-8754-7

Electronic_ISBN

pending

Type

conf

DOI

10.1109/ICIEA.2011.5975987

Filename

5975987