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Design and Analysis of a Fibonacci Switched-Capacitor DC-AC Inverter

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Abstract:

For small power applications, a Fibonacci switched-capacitor (SC) DC-AC inverter is proposed in this paper. Unlike common DC-AC inverter containing inductors or transformers, the proposed inverter requires no magnetic components. In the proposed inverter, bi-directional switches are controlled so that the voltage ratio of capacitors becomes the ratio of a Fibonacci number. By combining some of these capacitors in series, the proposed inverter generates a staircase AC waveform formed by many steps. Therefore, unlike the conventional SC DC-AC inverters based on a series-parallel type converter, the proposed inverter can provide the staircase AC waveform by a smaller number of capacitors. The theoretical analysis and simulation program with integrated circuit emphasis (SPICE) simulations show the effectiveness of the proposed inverter.

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Periodical:

Applied Mechanics and Materials (Volume 666)

Pages:

82-86

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.666.82

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Online since:

October 2014

Authors:

Kei Eguchi, Ya Nan Zhang, Kuniaki Fujimoto, Hirofumi Sasaki

Keywords:

DC-AC Inverters, Fibonacci Sequence, Inductor-Less Circuits, Switched Capacitor Circuits, Various Conversion Ratios

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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