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

Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
Department of Electrical Engineering, University of Kurdistan, Sanandaj 44001, Iran
Author to whom correspondence should be addressed.
Energies 2020, 13(2), 431;
Received: 2 December 2019 / Revised: 8 January 2020 / Accepted: 13 January 2020 / Published: 16 January 2020
(This article belongs to the Section Electrical Power and Energy System)
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. View Full-Text
Keywords: switched capacitor converter; modeling; optimization switched capacitor converter; modeling; optimization
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Do, W.; Bevrani, H.; Shafiee, Q.; Eguchi, K. An Analytical Approach for Design of a Cross-Connected Fibonacci Switched Capacitor Converter. Energies 2020, 13, 431.

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