Interleaved-Input Series-Output Ultra-High Voltage Gain DC-DC Converter

Seyed Mohsen Salehi, Seyed Mohammad Dehghan, Saeed Hasanzadeh

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


The ultra-high voltage gain dc-dc converters are extremely required because of the low voltage level of many nonpolluting power resources. This paper proposes an ultra-high voltage gain converter based on an interleave technique and using three-winding coupled inductor and voltage multiplier cell. The interleave technique is useful for reducing the size of the filter components. In the proposed converter, high voltage gain is achieved without extreme duty cycle of solid-state switches. The voltage stress across the semiconductor devices can be reduced by increasing the turn ratio of the secondary of the coupled inductors. In addition, because of the implementation of the interleave structure, peak-to-peak variation of the main input current and switching losses are substantially reduced. The steady-state principles of the proposed converter in continuous conduction mode operation are given. Also, design equations are presented. Validity and performance of the proposed converter are surveyed by simulation and experimental results of a 120 W prototype.

Original languageEnglish
Article number8403996
Pages (from-to)3397-3406
Number of pages10
JournalIEEE Transactions on Power Electronics
Issue number4
Early online date5 Jul 2018
Publication statusPublished - 1 Apr 2019
Externally publishedYes


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