Magnetic design and experimental evaluation of Integrated Magnetic Components used in Interleaved Multi-phase DC/DC converter with Phase Drive Control

Jun Imaoka, Kenkichiro Okamoto, Masahito Shoyama, Daigoro Ebisumoto, Shota Kimura, Mostafa Noah, Masayoshi Yamamoto

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

2 Citations (Scopus)

Abstract

Interleaved Multi-phase DC/DC Converters (IMDDC) with Integrated Magnetic Components (IMC) are well-known as one of the converter topologies that can achieve high-power-density. However, as one of the drawbacks of IMDDCs, the power conversion efficiency when all phases are driven may decrease between light and middle loads. The main causes of the efficiency reduction are non-load losses caused by parasitic capacitances in power devices and magnetic components. These losses especially increase under higher switching frequency and hard switching condition. To deal with this problem, IMDDCs with Phase Drive Control (PDC) has already been proposed as an attractive control scheme which can improve power conversion efficiency in all load ranges, by changing the number of drive phases. However, employing PDC in IMDDCs with IMC comes with two main drawbacks: 1) Magnetic saturation may occur due to the biased magnetization while driving a single-phase. 2) The circulating current flow in the anti-parallel diode of off-switch reduces the power conversion efficiency. Therefore, to overcome these problems, this paper proposes a novel design method of IMCs used in IMDDCs with PDC. The effectiveness of the proposed design method is discussed from theoretical and experimental viewpoints.

Original languageEnglish
Title of host publication2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2192-2197
Number of pages6
ISBN (Electronic)9781509051571
DOIs
Publication statusPublished - Jul 25 2017
Event3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017 - Kaohsiung, Taiwan, Province of China
Duration: Jun 3 2017Jun 7 2017

Publication series

Name2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017

Other

Other3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
CountryTaiwan, Province of China
CityKaohsiung
Period6/3/176/7/17

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization

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