High-Efficiency Single-Input Triple-Outputs DC-DC Converter With Zero-Current Switching

IEEE Access

Rong-Jong Wai¹  Zhi-Fu Zhang¹ 

[1] Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;

关键词: High-efficiency power conversion;    single-input multiple-outputs dc/dc converter;    high step-up;    coupled inductor;    voltage clamping;    zero-current switching (ZCS);   

DOI  :  10.1109/ACCESS.2019.2925079

来源: DOAJ

【 摘 要 】

This study mainly develops a high-efficiency single-input triple-outputs dc/dc converter (HSTDC) with a soft-switching technique for high step-up applications. In general, multiple output voltages with only one single input power source is always required for the applications of renewable energy or electric vehicles. At the high step-up operation, the proposed HSTDC has a high voltage conversion ratio to sustain the high-voltage dc bus for the utilization of dc/ac inverter. The proposed HSTDC uses a coupled inductor with lower turn ratios to achieve the high step-up voltage gain and adopts an auxiliary inductor to adjust the voltage of the auxiliary output terminal indirectly. Moreover, the utilization of voltage clamping and zero-current switching (ZCS) in the proposed HSTDC is helpful for accomplishing the goal of high-efficiency power conversion and three output voltage levels. In addition, the effectiveness of the proposed HSTDC is verified by rich experimental results.

【 授权许可】

Unknown