Transformer-Less Switched-Capacitor Quasi-Switched Boost DC-DC Converter

Energies

Truong-Duy Duong¹  Joon-Ho Choi¹  Young-Cheol Lim¹  Tan-Tai Tran²  Minh-Khai Nguyen³ 

[1] Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Korea;Faculty of Electrical Engineering Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam;Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 700000, Vietnam;

关键词: switched-capacitor;    quasi-switched boost;    high step-up;    duty cycle;    power conversion;   

DOI  :  10.3390/en14206591

来源: DOAJ

【 摘 要 】

In this article, a quasi-switched boost converter based on the switched-capacitor technique with high step-up voltage capability is dealt with and analyzed. The proposed converter offers a simple structure and low voltage stress on the semiconductor elements with intrinsic small duty cycle. An inductor of the proposed converter is connected in series with the input voltage source; therefore, continuous input current ripple is attainable. In addition, the efficiency of the proposed converter is also improved. A detailed steady-state analysis is discussed to identify the salient features of the switched-capacitor-based quasi-switched boost DC-DC converter. The performance of the converter is compared against similar existing high boost DC-DC converters. Finally, the switched-capacitor-based quasi-switched boost DC-DC converter is investigated by experimental verification.

【 授权许可】

Unknown