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

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

Energies, 2019, vol. 12, issue 14, 1-18

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.

Keywords: Hybrid PWM and resonant converter; hybrid converter; no circulating current; zero voltage switching (ZVS); zero current switching (ZCS) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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