A Single-Stage LED Driver Based on SEPIC and LLC Circuits

Yijie Wang; Na Qi; Yueshi Guan; Carlo Cecati; DIanguo Xu

doi:10.1109/TIE.2016.2613921

A Single-Stage LED Driver Based on SEPIC and LLC Circuits

Yijie Wang
, Na Qi
, Yueshi Guan
, Carlo Cecati
, DIanguo Xu

School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

A single-stage light-emitting diode (LED) driver has been developed integrating a single-ended primary-inductor converter with a half-bridge LLC resonant converter. The proposed topology reduces system's cost, enhancing reliability. Because the LLC resonant part maintains soft-switching characteristics, switching losses are relatively low. Due to careful parameters selection, the system bus voltage can be kept low as needed in high-power LED drive designs. Some experiments using a 100-W prototype were performed to validate theoretical analysis. The obtained power factor was as high as 0.99, and due to soft-switching operations efficiency was up to 92% at full load.

Original language	English
Article number	7577821
Pages (from-to)	5766-5776
Number of pages	11
Journal	IEEE Transactions on Industrial Electronics
Volume	64
Issue number	7
DOIs	https://doi.org/10.1109/TIE.2016.2613921
State	Published - Jul 2017
Externally published	Yes

Keywords

LLC
power factor correction (PFC)
single-ended primary-inductor converter (SEPIC)
soft switching

Access to Document

10.1109/TIE.2016.2613921

Cite this

@article{a817a6dc78994895bdf8db18ef9ec34b,

title = "A Single-Stage LED Driver Based on SEPIC and LLC Circuits",

abstract = "A single-stage light-emitting diode (LED) driver has been developed integrating a single-ended primary-inductor converter with a half-bridge LLC resonant converter. The proposed topology reduces system's cost, enhancing reliability. Because the LLC resonant part maintains soft-switching characteristics, switching losses are relatively low. Due to careful parameters selection, the system bus voltage can be kept low as needed in high-power LED drive designs. Some experiments using a 100-W prototype were performed to validate theoretical analysis. The obtained power factor was as high as 0.99, and due to soft-switching operations efficiency was up to 92\% at full load.",

keywords = "LLC, power factor correction (PFC), single-ended primary-inductor converter (SEPIC), soft switching",

author = "Yijie Wang and Na Qi and Yueshi Guan and Carlo Cecati and DIanguo Xu",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2017",

month = jul,

doi = "10.1109/TIE.2016.2613921",

language = "英语",

volume = "64",

pages = "5766--5776",

journal = "IEEE Transactions on Industrial Electronics",

issn = "0278-0046",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "7",

}

TY - JOUR

T1 - A Single-Stage LED Driver Based on SEPIC and LLC Circuits

AU - Wang, Yijie

AU - Qi, Na

AU - Guan, Yueshi

AU - Cecati, Carlo

AU - Xu, DIanguo

PY - 2017/7

Y1 - 2017/7

N2 - A single-stage light-emitting diode (LED) driver has been developed integrating a single-ended primary-inductor converter with a half-bridge LLC resonant converter. The proposed topology reduces system's cost, enhancing reliability. Because the LLC resonant part maintains soft-switching characteristics, switching losses are relatively low. Due to careful parameters selection, the system bus voltage can be kept low as needed in high-power LED drive designs. Some experiments using a 100-W prototype were performed to validate theoretical analysis. The obtained power factor was as high as 0.99, and due to soft-switching operations efficiency was up to 92% at full load.

AB - A single-stage light-emitting diode (LED) driver has been developed integrating a single-ended primary-inductor converter with a half-bridge LLC resonant converter. The proposed topology reduces system's cost, enhancing reliability. Because the LLC resonant part maintains soft-switching characteristics, switching losses are relatively low. Due to careful parameters selection, the system bus voltage can be kept low as needed in high-power LED drive designs. Some experiments using a 100-W prototype were performed to validate theoretical analysis. The obtained power factor was as high as 0.99, and due to soft-switching operations efficiency was up to 92% at full load.

KW - LLC

KW - power factor correction (PFC)

KW - single-ended primary-inductor converter (SEPIC)

KW - soft switching

UR - https://www.scopus.com/pages/publications/85028857737

U2 - 10.1109/TIE.2016.2613921

DO - 10.1109/TIE.2016.2613921

M3 - 文章

AN - SCOPUS:85028857737

SN - 0278-0046

VL - 64

SP - 5766

EP - 5776

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

IS - 7

M1 - 7577821

ER -

A Single-Stage LED Driver Based on SEPIC and LLC Circuits

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this