Energy Channeling LED Driver Technology to Achieve Flicker-Free Operation With True Single Stage Power Factor Correction

A conventional single stage ac-dc LED driver usually produces significant twice-line-frequency ripple current when a high power factor is achieved. The ripple current causes a lighting flicker of the LEDs. In this paper, an energy channeling ripple cancellation LED driver is proposed. It achieves tr...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2017-05, Vol.32 (5), p.3892-3907
Main Authors: Fang, Peng, Liu, Yan-Fei
Format: Article
Language:English
Subjects:
Channeling
Diodes
Energy channeling
Energy conversion
Flicker
Inductors
Light emitting diodes
Lighting
MOSFET
offline LED driver
Power factor
power factor correction
Reactive power
single-stage power conversion
Topology
Windings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A conventional single stage ac-dc LED driver usually produces significant twice-line-frequency ripple current when a high power factor is achieved. The ripple current causes a lighting flicker of the LEDs. In this paper, an energy channeling ripple cancellation LED driver is proposed. It achieves true single stage power conversion, maintains a high power factor while significantly removing the twice-line-frequency ripple current - flicker free LED driving. An 8.5 W, 50 V/0.17 A Buck-Boost experimental prototype has been built to verify the proposed method.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2016.2586502