Interleaved active clump forward converter with novel integrated magnetic components

Shota Kimura, Shogo Aoto, Masataka Ishihara, Jun Imaoka, Masayoshi Yamamoto

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

3 Citations (Scopus)


This paper proposes Series Input Parallel Output (SIPO) interleaved Active Clump Forward (ACF) converter with novel integrated magnetic components that may achieve high power density. The proposed converter consists of two ACF converters in SIPO connection to share the input voltage and output current. The natural magnetizing reset can be realized by the active clump circuit. The SIPO connection distributes the voltage stress of the primary side switches and the thermal stress of the output rectifiers and filters. The interleaved PWM operation also diminishes the current ripple in the output capacitor to reduce the size the output filter. In addition, the integrated magnetic components are used for inductors and transformers in the proposed converter to realize size-reduction of the magnetic components. Therefore, this converter is suitable for high input voltage and high output current applications such as dc-dc converters EVs and HEVs. In this paper, the operation principle and the theoretical analysis for the proposed integrated magnetic components are presented. Following we use core models for the integrated magnetic components, and the superiority of them in term of reducing the size and losses in the magnetic components is demonstrated clearly through comparison with a conventional single ACF converter and an conventional SIPO interleaved ACF converter. As a result, it is cleared that the proposed converter is effective for size-reduction and low-losses of the magnetic components under the same conditions. To verify the theoretical results, the experiments using a 500 W output prototype are conducted.

Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages8
ISBN (Electronic)9781467371506
Publication statusPublished - Oct 27 2015
Externally publishedYes
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: Sept 20 2015Sept 24 2015


Other7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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