High step-up soft-switched converters using voltage multiplier cells

Sanghyuk Lee, Pyosoo Kim, Sewan Choi

Research output: Contribution to journalArticlepeer-review

152 Scopus citations

Abstract

In this paper, a soft-switched dc-dc converter using voltage multiplier cells is proposed for high-step up application. The proposed converter has the following advantages: 1) doubled voltage conversion ratio of the basic configuration (N = 1) compared to the conventional boost converter; 2) zero voltage switching turn ON of switches and zero current switching turn OFF of diodes; 3) low input current ripple, reduced size of the passive component and current stresses of switches due to interleaved structure, and 4) increased flexibility in device selection by adjusting the number of voltage multiplier cells. The proposed converter is compared to some high step-up converters. Experimental results from a 1-kW prototype are provided to validate the proposed concept.

Original languageEnglish
Article number6353637
Pages (from-to)3379-3387
Number of pages9
JournalIEEE Transactions on Power Electronics
Volume28
Issue number7
DOIs
StatePublished - 2013

Keywords

  • Active-clamping
  • high step-up
  • interleaved
  • soft switched
  • voltage multiplier cell

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