An Analytical Approach for Design of a Cross-Connected Fibonacci Switched Capacitor Converter

Wanglok Do, Hassan Bevrani, Qobad Shafiee and Kei Eguchi
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Wanglok Do: Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
Hassan Bevrani: Department of Electrical Engineering, University of Kurdistan, Sanandaj 44001, Iran
Qobad Shafiee: Department of Electrical Engineering, University of Kurdistan, Sanandaj 44001, Iran
Kei Eguchi: Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan

Energies, 2020, vol. 13, issue 2, 1-15

Abstract: Switched capacitor converters (SCCs) are used for low-power applications because they are designed without magnetic components. Among various types of SCCs, the Fibonacci SCC (FSCC) features a small size and high voltage gain. However, the FSCC performance can be more improved, which leads to suggest a cross-connected FSCC (CCFSCC). However, in the considered four-terminal equivalent circuit model for analyzing the CCFSCC, some circuit parameters, such as the operation frequency and capacitor capacitance of the SCC are neglected. In this paper, we propose an analytical approach to optimize the CCFSCC circuit parameters by deriving its voltage gain function. The validity of the addressed methodology is confirmed by comparing the outcomes with the results of simulations and experiments. It is shown that the average errors between the calculated and experimental voltage gains are 9%, and the average absolute errors between the calculated and simulated ones are under 0.1.

Keywords: switched capacitor converter; modeling; optimization (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: 2020
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