Design and implementation of a high step-down interleaved DC-DC converter

Bo Hong Lin, Jiann-Fuh Chen, Che Ting Liu, Dai Wei Lai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a novel nonisolated converter topology with high step-down conversion ratio for high current and low voltage application, such as voltage regulator modules (VRM). The proposed converter is based on several existed techniques such as coupled-inductor, switched capacitor and interleaved technique. Compared to a conventional two-phase buck converter. The novel converter is capable of delivering larger current to the output load by two coupled-inductors with interleaved technique. Futhermore, it features an inherent current sharing capability, which can balance the load current and reduce the output current ripple. Lastly, a converter with 48V input voltage, 1V output voltage and 30W output power is implemented to prove the feasibility of proposed converter. The highest efficiency is around 90.2% when operating at 3 W and the efficiency is 79.3% at full load.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages106-111
Number of pages6
ISBN (Electronic)9781509049745
DOIs
Publication statusPublished - 2018 Apr 25
Event1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018 - Hamilton, New Zealand
Duration: 2018 Jan 302018 Feb 2

Publication series

NameProceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
Volume2018-January

Other

Other1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
CountryNew Zealand
CityHamilton
Period18-01-3018-02-02

Fingerprint

DC-DC converters
Electric potential
Voltage regulators
Capacitors
Topology

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Lin, B. H., Chen, J-F., Liu, C. T., & Lai, D. W. (2018). Design and implementation of a high step-down interleaved DC-DC converter. In Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018 (pp. 106-111). (Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IESES.2018.8349857
Lin, Bo Hong ; Chen, Jiann-Fuh ; Liu, Che Ting ; Lai, Dai Wei. / Design and implementation of a high step-down interleaved DC-DC converter. Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 106-111 (Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018).
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title = "Design and implementation of a high step-down interleaved DC-DC converter",
abstract = "This paper proposes a novel nonisolated converter topology with high step-down conversion ratio for high current and low voltage application, such as voltage regulator modules (VRM). The proposed converter is based on several existed techniques such as coupled-inductor, switched capacitor and interleaved technique. Compared to a conventional two-phase buck converter. The novel converter is capable of delivering larger current to the output load by two coupled-inductors with interleaved technique. Futhermore, it features an inherent current sharing capability, which can balance the load current and reduce the output current ripple. Lastly, a converter with 48V input voltage, 1V output voltage and 30W output power is implemented to prove the feasibility of proposed converter. The highest efficiency is around 90.2{\%} when operating at 3 W and the efficiency is 79.3{\%} at full load.",
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Lin, BH, Chen, J-F, Liu, CT & Lai, DW 2018, Design and implementation of a high step-down interleaved DC-DC converter. in Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018. Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018, vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 106-111, 1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018, Hamilton, New Zealand, 18-01-30. https://doi.org/10.1109/IESES.2018.8349857

Design and implementation of a high step-down interleaved DC-DC converter. / Lin, Bo Hong; Chen, Jiann-Fuh; Liu, Che Ting; Lai, Dai Wei.

Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 106-111 (Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018; Vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - This paper proposes a novel nonisolated converter topology with high step-down conversion ratio for high current and low voltage application, such as voltage regulator modules (VRM). The proposed converter is based on several existed techniques such as coupled-inductor, switched capacitor and interleaved technique. Compared to a conventional two-phase buck converter. The novel converter is capable of delivering larger current to the output load by two coupled-inductors with interleaved technique. Futhermore, it features an inherent current sharing capability, which can balance the load current and reduce the output current ripple. Lastly, a converter with 48V input voltage, 1V output voltage and 30W output power is implemented to prove the feasibility of proposed converter. The highest efficiency is around 90.2% when operating at 3 W and the efficiency is 79.3% at full load.

AB - This paper proposes a novel nonisolated converter topology with high step-down conversion ratio for high current and low voltage application, such as voltage regulator modules (VRM). The proposed converter is based on several existed techniques such as coupled-inductor, switched capacitor and interleaved technique. Compared to a conventional two-phase buck converter. The novel converter is capable of delivering larger current to the output load by two coupled-inductors with interleaved technique. Futhermore, it features an inherent current sharing capability, which can balance the load current and reduce the output current ripple. Lastly, a converter with 48V input voltage, 1V output voltage and 30W output power is implemented to prove the feasibility of proposed converter. The highest efficiency is around 90.2% when operating at 3 W and the efficiency is 79.3% at full load.

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Lin BH, Chen J-F, Liu CT, Lai DW. Design and implementation of a high step-down interleaved DC-DC converter. In Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 106-111. (Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018). https://doi.org/10.1109/IESES.2018.8349857