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A hybrid soft switching full bridge converter suitable for the electric vehicle charge applications

Authors
Tran, D.-D.Tran, M.-T.Choi, W.
Issue Date
Jul-2019
Publisher
MDPI AG
Keywords
Hybrid converter; Hybrid PWM and resonant converter; No circulating current; Zero current switching (ZCS); Zero voltage switching (ZVS)
Citation
Energies, v.12, no.14
Journal Title
Energies
Volume
12
Number
14
URI
https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/35005
DOI
10.3390/en12142708
ISSN
1996-1073
Abstract
A hybrid dc–dc converter suitable for the on-board charger applications consisted of a Soft Switching Full Bridge (SSFB) converter and a Half Bridge (HB) LLC resonant converter is proposed. The proposed topology employs an additional switch and a diode at the secondary of the SSFB converter to eliminate the circulating current and to achieve the full soft switching of the primary switches. The output voltage is regulated by adjusting the duty of the secondary side switch. The validity and feasibility of the proposed converter are verified by the experiments with a 10-kW prototype converter. The maximum of 96.8% efficiency is achieved at 5 kW output power. © 2019 by the authors.
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