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http://dx.doi.org/10.6113/JPE.2019.19.3.676

Switched Capacitor Based High Gain DC-DC Converter Topology for Multiple Voltage Conversion Ratios with Reduced Output Impedance  

Priyadarshi, Anurag (School of Electrical Sciences, Indian Institute of Technology)
Kar, Pratik Kumar (School of Electrical Sciences, Indian Institute of Technology)
Karanki, Srinivas Bhaskar (School of Electrical Sciences, Indian Institute of Technology)
Publication Information
Journal of Power Electronics / v.19, no.3, 2019 , pp. 676-690 More about this Journal
Abstract
This paper presents a switched capacitor (SC) based bidirectional dc-dc converter topology for high voltage gain applications. The proposed converter is able to operate with multiple integral voltage conversion ratios based on user input. The architecture of a user-friendly, inductor-less multi-voltage-gain bidirectional dc-dc converter is proposed in this study. The inductor-less or magnetic-less design of the proposed converter makes it effective in higher temperature applications. Furthermore, the proposed converter has a reduced component count and lower voltage stress across its switches and capacitors when compared to existing SC converters. An output impedance analysis of the proposed converter is presented and compared with popular existing SC converters. The proposed converter is simulated in the OrCAD PSpice environment and the obtained results are presented. A 200 W hardware prototype of the proposed SC converter has been developed. Experimental results are presented to validate the efficacy of the proposed converter.
Keywords
Bidirectional; High gain dc-dc converter; Inductor-less; Multi-voltage-gain; Switched capacitor (SC) circuits;
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