A reconfigurable series resonant DC-DC converter for wide-input and wide-output voltages

Yanfeng Shen, Huai Wang, Zian Qin, Frede Blaabjerg, Ahmed Al Durra

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

16 Scopus citations

Abstract

This paper proposes a dual-bridge based LC series resonant dc-dc converter. The input inverter unit incorporates two bridge structures, i.e., a full-bridge inverter and a half-bridge inverter. For the output rectifier, it can be a full-bridge rectifier or an asymmetric half-bridge rectifier. Different from the conventional resonant converter, a fixed-frequency PWM control is employed which makes the optimization of magnetic components easier. The primary-side switches can achieve ZVS and the secondary-side diodes turn off with ZCS. In addition, the root-mean-square (RMS) values of the transformer currents do not significantly vary with respect to the voltage variation. Therefore, this converter can maintain high efficiency over a wide voltage range. The topology and operating principle are firstly described. Then the dc voltage gain and the RMS current characteristics are detailed. Finally, experimental results from a 500-W converter prototype verify the effectiveness of analysis, and the advantages of the proposed converter.

Original languageBritish English
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages343-349
Number of pages7
ISBN (Electronic)9781509053667
DOIs
StatePublished - 17 May 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 26 Mar 201730 Mar 2017

Publication series

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

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period26/03/1730/03/17

Keywords

  • Resonant converter
  • Wide input voltage range
  • Wide output voltage range

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