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Electrical, Control and Communication Engineering

The Journal of Riga Technical University

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Dimmable LED Drivers Operating in Discontinuous Conduction Mode

Olegs Tetervenoks / Irena Milashevski
Published Online: 2013-05-11 | DOI: https://doi.org/10.2478/ecce-2013-0004


For the modern smart lighting systems one of the most attractive LED advantages is the dimming possibility. Many researchers and engineers from the field of lighting engineering are trying to find compromise between the efficiency of LED dimming process and the ease of its implementation. This paper also presents an attempt to improve LED dimmer parameters. Comparative investigation of the operation of buck LED drivers in continuous conduction mode and discontinuous conduction mode are discussed here. The first section of paper briefly describes the controllability parameters of the converter in both of these modes. The positive impact of discontinuous conduction mode on the controllability parameters as well as the results of the analytical estimation and the results of associated experiments are summarized at the end of the first section. The second section describes the impact of discontinuous conduction mode on the losses of LED dimmer. The analytical estimation of power losses in the main converter components for both operation modes as well as the summary of the experiments to identify distribution of power losses between these components are presented in this section. Finally, the conclusions about using discontinuous conduction mode for dimmable LED lamps as well as guidelines for the choosing of the components with the most appropriate parameters are drawn

Keywords: Lighting; LED lamps; controllability; electrical ballasts; DC-DC power converters

  • [1] Suzdalenko, A.; Galkin, I., "Investigation of power supply methods for intelligent LED luminary," Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International , vol., no., pp.T6- 66,T6-69, 6-8 Sept. 2010 Google Scholar

  • [2] Apse-Apsitis, P.; Avotins, A.; Ribickis, L., "Wirelessly controlled led lighting system," Energy Conference and Exhibition (ENERGYCON), 2012 IEEE International , vol., no., pp.952,956, 9-12 Sept. 2012 Google Scholar

  • [3] Seoul Semiconductor, W724C0 - datasheet, 2008, available electronically at www.seoulsemicon.com, last checked on August 13, 2010. Google Scholar

  • [4] Schmid, M.; Kuebrich, D.; Weiland, M.; Duerbaum, T.; , "Evaluation on the Efficiency of Power LEDs Driven with Currents Typical to Switch Mode Power Supplies," Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE , vol., no., pp.1135-1140, 23-27 Sept. 2007 Google Scholar

  • [5] Suzdalenko, A.; Galkin, I.; , "Choice of power and control hardware for smart LED luminary," Electronics Conference (BEC), 2010 12th Biennial Baltic , vol., no., pp.331-334, 4-6 Oct. 2010 Google Scholar

  • [6] van der Broeck, Heinz; Sauerlander, Georg; Wendt, Matthias; , "Power driver topologies and control schemes for LEDs," Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE , vol., no., pp.1319-1325, Feb. 25 2007-March 1 2007 Google Scholar

  • [7] de Britto, J.R.; Demian, A.E.; de Freitas, L.C.; Farias, V.J.; Coelho, E.A.A.; Vieira, J.B.; , "A proposal of Led Lamp Driver for universal input using Cuk converter," Power Electronics Specialists Conference, 2008. PESC 2008. IEEE , vol., no., pp.2640-2644, 15-19 June 2008 Google Scholar

  • [8] Tzuen-Lih Chern; Tsung-Mou Huang; Wen-Yuen Wu; Whei-Min Lin; Guan-Shyong Hwang; , "Design of LED driver circuits with single-stage PFC in CCM and DCM," Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on , vol., no., pp.2358-2363, 21-23 June 2011 Google Scholar

  • [9] Alonso, J.M.; Gacio, D.; Garcia, J.; Rico-Secades, M.; Dalla Costa, M.A.; , "Analysis and design of the integrated double buck-boost converter operating in full DCM for LED lighting applications," IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society , vol., no., pp.2889-2894, 7-10 Nov. 2011 Google Scholar

  • [10] Galkin, I.; Milashevski, I.; Teteryonok, O.; , "Comparative study of steady-state performance of LED drivers at different modulation techniques," Compatibility and Power Electronics (CPE), 2011 7th International Conference-Workshop , vol., no., pp.382-387, 1-3 June 2011 Google Scholar

  • [11] Galkin, I.; Teteryonok, O.; Milashevski, I.; , "Comparative estimation of efficiency of LED dimmers at different modulation techniques," Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on , vol., no., pp.1-9, Aug. 30 2011-Sept. 1 2011 Google Scholar

  • [12] Milashevski I., Tetervenok O., Galkin I. “Assessment of Energy Efficient LED Ballasts Based on Their Weight and Size” // Scientific Journal of RTU. 4. series., Power and Electrical Engineering. - 29. vol. (2011), pp 105-112. Google Scholar

  • [13] Ned Mohan, Tore M. Undeland, William P. Robbins, PowerElectronics: Converters, Applications, and Design. Wiley, 2003, pp.164- 172. Google Scholar

  • [14] R. W. Erickson, D. Maksimovic, Fundamentals of Power Electronics, 2nd Ed. Springer, 2001, pp. 107-139. Google Scholar

  • [15] M. Brown, Power Supply Cookbook, Second Edition. Boston: Newnes, 2001, pp. 232-236. Google Scholar

  • [16] Micrometals. Power Conversion and Line Filter Applications - application note, issue L, 2007, available electronically at http://www.micrometals.com Google Scholar

  • [17] T. Einchhorn, Estimate Inductor Losses Easily in Power Supply Designs. Power Electronics Technology magazine, April 2005 IssueGoogle Scholar

About the article

Olegs Tetervenoks

Olegs Tetervenoks received his Bachelor’s Degree with Engineer qualification (2010) and Master’s (2011) Degree in the field of electrical engineering at Riga Technical University, Faculty of Power and Electrical Engineering. Since 2011 he has been studying for his PhD at Riga Technical University. The Bachelor thesis was focused on solid state lighting technology development, in particular, on efficient LED power supply development. The Master thesis was devoted to LED light source efficiency evaluation equipment. The area of scientific interests of Olegs Tetervenoks covers microprocessor control systems and LED lighting technologies. The working experience of Olegs Tetervenoks includes 2 years of research job at Riga Technical University. Olegs Tetervenoks is IEEE member since 2011. Postal address: Institute of Industrial Electronics and Electrical Engineering, Riga Technical University, Kronvalda boulevard 1, Riga LV- 1010, Latvia.

Irena Milashevski

Irena Milashevski received her B.Sc. degree in Electrical Drives and Power Electronics in 2006 and M.Sc. degree in the same field in 2008 in Tallinn University of Technology. Since 2008 she has been studing for her PhD at Tallinn University of Technology (the thesis has been presented and degree – received in January 2013). From 2006 she has working in electrical engineering company KH Energia-Konsult Plc as electrical designer and consulter. Her research interests include LEDs and their electronics ballasts energy efficiency, quality and economical problems in the lighting field. Postal address: Department of Electrical Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia.

Published Online: 2013-05-11

Published in Print: 2013-04-01

Citation Information: Electrical, Control and Communication Engineering, Volume 2, Issue 1, Pages 27–33, ISSN (Online) 2255-9159, ISSN (Print) 2255-9140, DOI: https://doi.org/10.2478/ecce-2013-0004.

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