Current ripple modeling of an interleaved high step-up converter with coupled inductor

Wilmar Martinez, Camilo A. Cortes, Jun Imaoka, Kazuhiro Umetani, Masayoshi Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


A non-isolated high step-up DC-DC converter with coupled inductor is developed for large voltage gain applications such as electric mobility and renewable energies. This converter combines the concepts of magnetic integration and interleaving phases that are effective for downsizing of power converters. The developed converter offers a good performance of voltage gain vs. converter size, because, compared with the conventional two-phase interleaved boost converter, it only needs the addition of two diodes and one winding. Nevertheless, in order to describe the design method of the developed high step-up converter, the coupled inductor characterization is required. Therefore, the current ripple characterization of the coupled inductor is analyzed and evaluated in this paper. A 100W prototype is constructed and experimental results are provided to verify the characterization analysis.
Original languageEnglish
Title of host publicationProceedings of the 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC 2017 - ECCE Asia
Number of pages6
ISBN (Print)978-1-5090-5157-1
Publication statusPublished - 1 Jun 2017
MoE publication typeA4 Article in a conference publication
EventIEEE International Future Energy Electronics Conference - Kaohsiung, Taiwan, Republic of China
Duration: 3 Jun 20177 Jun 2017
Conference number: 3


ConferenceIEEE International Future Energy Electronics Conference
Abbreviated titleIFEEC
CountryTaiwan, Republic of China


  • DC-DC power convertors
  • network synthesis
  • coupled inductor converter
  • current ripple modeling
  • design method
  • interleaved high step-up converter
  • interleaving phase
  • large voltage gain applications
  • magnetic integration
  • nonisolated DC-DC converter
  • power converter size reduction
  • Inductance
  • Inductors
  • Legged locomotion
  • Magnetic circuits
  • Magnetic cores
  • Magnetic flux
  • Windings
  • DC-DC converters
  • Electric Vehicles
  • High Step-up
  • Renewable Energies
  • current ripple
  • voltage gain

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