A non-isolated high step-up hybrid resonant converter based on hybrid transformer

Wenhao Xie, Yifei Zheng, Shouxiang Li, Jianze Wang, Yanchao Ji, Jilai Yu

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

2 Citations (Scopus)

Abstract

A non-isolated high step-up hybrid resonant converter based on hybrid transformer is proposed to recycle leakage energy without any auxiliary clamp capacitor. A resonant capacitor delivers energy from input to output, which reduces the stored inductive energy of the hybrid transformer. Thus, a small size of magnetic core is adopted with high magnetic utilization. Additionally, the input current ripple is reduced due to the resonant operation. Moreover, zero voltage switching (ZVS) turn-on for upper switch and zero current switching (ZCS) turn-on for lower switch are realized to decrease the switching losses. In addition, the output diode turns OFF in ZCS operation, which alleviates the diode reverse recovery problem. Finally, the experimental results of a 240W prototype verified the converter feasibility.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2185-2188
Number of pages4
ISBN (Electronic)9781538683309
DOIs
Publication statusPublished - 24 May 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • Hybrid transformer
  • Resonant capacitor
  • Step-up

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