Advertisement

Assessment of Switch Mode Current Sources for Current Fed LED Drivers

  • Olegs Tetervenoks
  • Ilya Galkin
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 423)

Abstract

Today solid state lighting is one of the most rapidly growing industries. Unfortunately light-emitting diodes require additional electronics (ballasts, drivers) for proper operation with conventional energy sources. Therefore this paper summarizes the previous studies of LED luminous flux regulation techniques, as well as extends previous studies of current fed (CF) converters. Requirements for the switch mode constant current source are discussed in this paper. Two suitable circuits as well as control algorithm are considered here. PSIM models of the converter were created and the operation with CF converters was approved. The considerations regarding the practical implementation are given in the end of this paper.

Keywords

Light-emitting diode ballast LED driver DC-DC converter 

References

  1. 1.
    Cree, Cree Reaches LED Industry Milestone with 200 Lumen-Per-Watt LED, Press Releases (December 18, 2012), http://www.cree.com/news-and-events/cree-news/press-releases2012/december/mkr-intro
  2. 2.
    Milaševski, I., Tetervenoks, O., Galkin, I.: Assessment of Energy Efficient LED Ballasts Based on their Weight and Size. Power and Electrical Engineering 29, 105–112 (2011) ISSN 1407-7345, doi:10.2478/v10144-011-0018-6Google Scholar
  3. 3.
    Chen, W., Hui, S.Y.R.: A Dimmable Light-Emitting Diode (LED) Driver With Mag-Amp Postregulators for Multistring Applications. IEEE Transactions on Power Electronics 26(6), 1714–1722 (2011), doi:10.1109/TPEL.2010.2082565CrossRefGoogle Scholar
  4. 4.
    Chiu, C.-L., Chen, K.-H.: A high accuracy current-balanced control technique for LED backlight. In: IEEE Power Electronics Specialists Conference, PESC 2008, June 15-19, pp. 4202–4206 (2008), doi:10.1109/PESC.2008.4592615Google Scholar
  5. 5.
    Schmid, M., Kuebrich, D., Weiland, M., Duerbaum, T.: Evaluation on the Efficiency of Power LEDs Driven with Currents Typical to Switch Mode Power Supplies. In: 42nd IAS Annual Meeting Industry Applications Conference. Conference Record of the 2007 IEEE, September 23-27, pp. 1135–1140 (2007), doi:10.1109/07IAS.2007.178Google Scholar
  6. 6.
    Milashevski, I., Galkin, I., Tetervenok, O.: Assessment of buck converter powered by current or voltage sources for LEDs luminary. In: 2012 13th Biennial Baltic Electronics Conference (BEC), October 3-5, pp. 239–242 (2012), doi:10.1109/BEC.2012.6376861Google Scholar
  7. 7.
    Galkin, I., Tetervjonok, O., Milashevski, I.: Comparative study of steady-state performance of voltage and current fed dimmable LED drivers. In: 2013 8th International Conference on Compatibility and Power Electronics (CPE), June 5-7, pp. 292–297 (2013), doi:10.1109/CPE.2013.6601172Google Scholar
  8. 8.
    Galkin, I., Tetervenoks, O.: Validation of Direct Current Control in LED Lamp with Non-Inverting Buck-Boost Converter. In: 2013 39th Annual Conference of the IEEE Industrial Electronics Society (IECON), November 10-13, pp. 6019–6024 (2013) ISBN 9781479902231Google Scholar

Copyright information

© IFIP International Federation for Information Processing 2014

Authors and Affiliations

  • Olegs Tetervenoks
    • 1
  • Ilya Galkin
    • 1
  1. 1.Faculty of Power and Electrical EngineeringRiga Technical UniversityRigaLatvia

Personalised recommendations