NDLI: An LED Lamp Driver Compatible With Low- and High-Frequency Sources

Content Provider	IEEE Xplore Digital Library
Author	Nan Chen Chung, H.S.-H.
Copyright Year	1986
Abstract	An LED lamp driver with its input compatible with high- and low-frequency sources is proposed. It can be powered by the ac mains, low-frequency electromagnetic ballast, or high-frequency electronic ballast. Its input impedance is controlled to meet the operational requirements and conditions of different sources and its output is controlled to deliver the required power to the LED array. When the driver is powered by a low-frequency source, like ac mains or low-frequency electromagnetic ballast, it is configured as an active power factor corrector. Its input current follows the wave shape of the source voltage. When the driver is powered by a high-frequency source, like electronic ballast, it is configured as a phase-shifted resonant converter with controllable input resistance and susceptance. Moreover, the driver has a startup mechanism that emulates the ignition process of a fluorescent lamp. Such a wide source compatibility of the driver enables the lamp be applied in new lighting installations or retrofitting fluorescent lamps with LED lamps without modification of existing ballasts and/or lighting infrastructure. A 20-W prototype, which is designed to retrofit a 36-W T8 fluorescent lamp, has been built and evaluated with different sources, including ac mains (110 V/60 Hz, 220 V/50 Hz), electromagnetic ballast, and electronic ballast.
Sponsorship	IEEE Power Electronics Society
Starting Page	2551
Ending Page	2568
Page Count	18
File Size	3802994
File Format	PDF
ISSN	08858993
Volume Number	28
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electronic ballasts LED lamps Electromagnetics Fluorescent lamps Reactive power lighting control AC/DC conversion dc/ac conversion LED lighting
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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