Highly Reliable Push-Pull Resonant DC/DC Converter for Medium-Power Applications

Jong Won Lim; Changkyu Bai; Tsegaab Alemayehu Wagaye; Ji Ho Choi; Minsung Kim

doi:10.1109/TIE.2022.3163505

Highly Reliable Push-Pull Resonant DC/DC Converter for Medium-Power Applications

Jong Won Lim, Changkyu Bai, Tsegaab Alemayehu Wagaye, Ji Ho Choi, Minsung Kim

Department of Electronics & Electrical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

This article presents a highly reliable push-pull resonant dc/dc converter for medium-power applications. At medium power, conventional push-pull resonant dc/dc converter experiences a very high current spike at the secondary-side switches, and this spike can destroy the active power components. We eliminate this current spike by connecting clamp diodes to the resonant capacitors. Moreover, the proposed converter achieves fully zero-voltage-switching (ZVS) turn-off at the secondary-side switches when the load exceeds the threshold. Furthermore, the proposed converter is invulnerable to the short-circuit problem at the output. Experimental results are presented to show the effectiveness of the proposed dc/dc converter at the medium power against a conventional solution.

Original language	English
Pages (from-to)	1342-1355
Number of pages	14
Journal	IEEE Transactions on Industrial Electronics
Volume	70
Issue number	2
DOIs	https://doi.org/10.1109/TIE.2022.3163505
State	Published - 1 Feb 2023

Keywords

Complete zero-voltage-switching (ZVS) turn off
current-fed push-pull resonant converter
high efficiency
short-circuit problem
very large current spike

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10.1109/TIE.2022.3163505

Cite this

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title = "Highly Reliable Push-Pull Resonant DC/DC Converter for Medium-Power Applications",

abstract = "This article presents a highly reliable push-pull resonant dc/dc converter for medium-power applications. At medium power, conventional push-pull resonant dc/dc converter experiences a very high current spike at the secondary-side switches, and this spike can destroy the active power components. We eliminate this current spike by connecting clamp diodes to the resonant capacitors. Moreover, the proposed converter achieves fully zero-voltage-switching (ZVS) turn-off at the secondary-side switches when the load exceeds the threshold. Furthermore, the proposed converter is invulnerable to the short-circuit problem at the output. Experimental results are presented to show the effectiveness of the proposed dc/dc converter at the medium power against a conventional solution.",

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AU - Kim, Minsung

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AB - This article presents a highly reliable push-pull resonant dc/dc converter for medium-power applications. At medium power, conventional push-pull resonant dc/dc converter experiences a very high current spike at the secondary-side switches, and this spike can destroy the active power components. We eliminate this current spike by connecting clamp diodes to the resonant capacitors. Moreover, the proposed converter achieves fully zero-voltage-switching (ZVS) turn-off at the secondary-side switches when the load exceeds the threshold. Furthermore, the proposed converter is invulnerable to the short-circuit problem at the output. Experimental results are presented to show the effectiveness of the proposed dc/dc converter at the medium power against a conventional solution.

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Highly Reliable Push-Pull Resonant DC/DC Converter for Medium-Power Applications

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Keywords

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