| Title |
High-Efficiency Full-Bridge DC-DC Converter with Current-Doubler Rectifier with Asymmetric Pulse-Width Modulation |
| Authors |
Min-Kwon Yang ; Woo-Young Choi |
| DOI |
10.6113/TKPE/2015.20.3.280 |
| Keywords |
Full-bridge DC-DC converter; Asymmetric pulse-width modulation; Current-doubler rectifier; Zero-voltage switching |
| Abstract |
A high-efficiency full-bridge DC-DC converter with a current-doubler rectifier and an asymmetric pulse-width modulation is proposed. Through the asymmetric pulse-width modulation, the proposed converter achieves zero-voltage switching of power switches without the circulating currents. The proposed converter reduces the output current ripple through the current-doubler rectifier. A control strategy is suggested for the proposed converter to charge battery banks. A constant current and constant voltage charging is performed. The proposed converter achieved a higher efficiency compared with the conventional full-bridge DC-DC converter with a phase-shift modulation. The performance of the proposed converter is evaluated by the experimental results for a 1.0 kW prototype circuit. |