NDLI: LED driver based on novel ripple cancellation technique for flicker-free operation and reduced power processing

Content Provider	IET Digital Library
Author	Li, Huan Xiao, Weidong
Abstract	Light-emitting-diode (LED) drivers are required to maintain the power quality of both the AC input and DC output side. The regulation prevents adverse impacts on the grid and maintains the nominal operating condition of LEDs. Without significant filtering, the input power from a single-phase AC source can result in low-frequency flickers that raise health issues. This study proposes a LED driver topology to achieve low harmonics at the AC side and maintain flicker-free operation to drive LEDs. A novel ripple-cancelling scheme is developed to minimise redundant power processing and reduce circuit complexity to achieve high-conversion efficiency. The new topology supports a simple control strategy to operate the driver effectively. Experimental evaluation demonstrates the system performance and verifies the novelty and contribution.
Starting Page	3026
Ending Page	3031
Page Count	6
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 14, Nov (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0102
Journal	IET Power Electronics
Publisher Date	2020-06-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Side Adverse Impacts Control of Electric Power System Current Control Electric Current Control Flicker-free Operation Harmonics Input Power LED Driver Topology Light Emitting Diode Light-emitting-diode Low Harmonics Low-frequency Flickers Nominal Operating Condition Novel Ripple Cancellation Technique Novel Ripple-cancelling Scheme Power Converter Power Factor Correction Power Quality Power Supplies to Apparatus Power Supply Quality Power System Harmonics Raise Health Issues Redundant Power Processing Significant Filtering Single-phase AC Source
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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