NDLI: Off-line LED driver for street lighting with an optimized cascade structure

Content Provider	IEEE Xplore Digital Library
Author	Camponogara, D. Ferreira, G.F. Campos, A. Dalla Costa, M.A. Garcia, J.
Copyright Year	2012
Description	Author affiliation: University of Oviedo, Campus Viesques, Edificio 3, Gijon, 33204, Spain (Garcia, J.) \|\| Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, 97105-900, Brazil (Camponogara, D.; Ferreira, G.F.; Campos, A.; Dalla Costa, M.A.)
Abstract	This paper presents a converter structure applied to supply high power Light Emitting Diodes (LEDs) from the mains in a street lighting system, based on the Reduced Redundant Power Processing $(R^{2}P^{2})$ principle. To guarantee high power factor and low harmonic injection a buck-boost operating in Discontinuous Conduction Mode (DCM) is employed as Power Factor Corrector (PFC). The second converter of the structure controls the current over the LEDs string, but it does not process all the power. This is done summing the voltage of the first with the second converter. Avoiding the double processing of the power, the efficiency is improved. Besides that, the capacitance value of the first converter is dramatically reduced by increasing the ripple limits, making possible the use of film capacitors to increase the life span of the system. The system project and control structure are showed in details. A laboratory prototype, with a rated power of 75W for a rated input voltage of 220Vrms, was built to show the feasibility of the idea.
Starting Page	1
Ending Page	6
File Size	881259
Page Count	6
File Format	PDF
ISBN	9781467303309
ISSN	01972618
e-ISBN	9781467303323
e-ISBN	9781467303316
DOI	10.1109/IAS.2012.6374059
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switched-mode power supply Reactive power AC-DC power converters LED lamps Lighting Light emitting diodes Capacitance Energy efficiency Voltage control Inductors Optimized Cascade Structure
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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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
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