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

Truong-Duy Duong, Minh-Khai Nguyen, Tan-Tai Tran, Young-Cheol Lim and Joon-Ho Choi
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Truong-Duy Duong: Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Korea
Minh-Khai Nguyen: Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 700000, Vietnam
Tan-Tai Tran: Faculty of Electrical Engineering Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
Young-Cheol Lim: Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Korea
Joon-Ho Choi: Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Korea

Energies, 2021, vol. 14, issue 20, 1-19

Abstract: 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.

Keywords: switched-capacitor; quasi-switched boost; high step-up; duty cycle; power conversion (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: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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