A Hybrid Soft Switching Full Bridge Converter Suitable for the Electric Vehicle Charge Applications

Dai-Duong Tran; Manh-Tuan Tran; Woojin Choi

doi:10.3390/en12142707

Energies (Jul 2019)

A Hybrid Soft Switching Full Bridge Converter Suitable for the Electric Vehicle Charge Applications

Dai-Duong Tran,
Manh-Tuan Tran,
Woojin Choi

Affiliations

Dai-Duong Tran: Department of Electrical Engineering, Soongsil University, 369 Sangdo-ro, Seoul 06978, Korea
Manh-Tuan Tran: Department of Electrical Engineering, Soongsil University, 369 Sangdo-ro, Seoul 06978, Korea
Woojin Choi: Department of Electrical Engineering, Soongsil University, 369 Sangdo-ro, Seoul 06978, Korea

DOI: https://doi.org/10.3390/en12142707
Journal volume & issue: Vol. 12, no. 14
p. 2707

Abstract

Read online

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.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

About the journal

Abstract

Keywords