Efficient Control of SEPIC DC-DC Converter with Dynamic Switching Frequency

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 765)

Abstract

The majority of present DC-DC converters operate at a fixed frequency with the only exception at low output load. This approach allows simple suppression of switching noise from the output voltage. For some applications, noisy supply voltage is not the essential problem. The total operating time is more important for many devices powered from a battery or energy harvesting. This paper observes efficiency of DC-DC converter which allows dynamic change of switching frequency under variable operating conditions typical for renewable sources in handheld scale. Experimentally evaluated converter, composed of discrete components, uses SEPIC topology to allow for seamless step-up or step-down transition. Gathered data, shows important features for the development of the new control model of DC power management systems.

Keywords

DC-DC converter SEPIC topology Energy harvesting Power efficiency 

References

  1. 1.
    Zhao, L., Qian, J., Texas Instruments: DC-DC Power Conversions and System Design Considerations for Battery Operated System, January 2006Google Scholar
  2. 2.
    Texas Instruments Inc.: “Bidirectional DC-DC Converter”, TI Designs:TIDA-BIDIR-400-12, TI Literature Number: TIDUAI7, September 2015Google Scholar
  3. 3.
    ON Semiconductor: Effects of High Switching Frequency on Buck Regulators, tutorial ID: TND388/D, December 2009Google Scholar
  4. 4.
    Nowakowski, R., King, B., Texas Instruments Inc.: Choosing the optimum switching frequency of your DC/DC converter. EETimes, October 2006Google Scholar
  5. 5.
    Keeping, S.: Design Trade-offs when Selecting a High-Frequency Switching Regulator. DigiKey TechZone article, February 2015Google Scholar
  6. 6.
    Jeff, F., Texas instruments Inc.: Designing DC/DC converters based on SEPIC topology. “Analog Applications Journal”, 4Q 2008, pp. 18-23, TI Literature Number: SLYT309 (2008)Google Scholar
  7. 7.
    Žák, S., Szabo, J.: Load balancing of heterogeneous parallel DC-DC converter. In: FedCSIS Proceedings of the Federated Conference on Computer Science and Information Systems, pp. 895–899 (2017)Google Scholar
  8. 8.
    Al-Hoor, W., Abu-Qahouq, J., Huang, L., Batarseh, I.: Design Considerations and Dynamic Technique for Digitally Controlled Variable Frequency DC-DC Converter, pp. 846–850 (2007)  https://doi.org/10.1109/PESC.2007.4342098

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Technical Cybernetics, Faculty of Management Science and InformaticsUniversity of ŽilinaŽilinaSlovakia

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