Performance evaluation of interleaved high-gain converter configurations

Hyuntae Choi, Minsoo Jang, Mihai Ciobotaru, Vassilios G. Agelidis

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


This study presents the experimental verification of an interleaved high-gain (IHG) DC-DC converter using series and parallel configurations. The interleaved configurations allow the converter to achieve high voltage gain and high current rating, thus increasing the power rating of the converter. Analytical expressions for the design of these interleaved converter configurations are included in the study. The efficiency of the IHG DC-DC converter is increased due to the zero-voltage switching of all active switches and the zero-current switching of all diodes. Experimental results taken from three 1 kW prototypes with different configuration (non-interleaved, and series and parallel interleaved) are presented to verify the interleaving performance and efficiency. Moreover, the effect of soft-switching in terms of efficiency is demonstrated.
Original languageEnglish
Pages (from-to)1852-1861
Number of pages10
JournalIET Power Electronics
Issue number9
Publication statusPublished - 2016
Externally publishedYes


  • performance evaluation
  • DC-DC power convertors
  • zero voltage switching
  • switching convertors
  • zero current switching
  • switches
  • interleaved high-gain converter configuration
  • interleaved high-gain DC-DC converter
  • IHG DC-DC converter
  • zero-voltage switching
  • zero-current switching
  • diode
  • soft-switching effect
  • power 1 kW


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