Ashwin, K and Narayanan K, N and Umanand, L and Reddy B, S (2024) Design and analysis of a non-ideal resonant switched capacitor DC-DC converter with reduced device ratings. In: International Journal of Circuit Theory and Applications .
Full text not available from this repository.Abstract
This paper introduces a resonant switched capacitor converter (RSCC) topology that enhances the operational efficiency by utilizing devices with reduced ratings. The RSCC eliminates bulky magnetic elements, yielding increased power density, modular structure, and compact size compared with switched inductor topologies. Significantly, all the switched capacitors in the proposed converter and approximately 50 of the switching power devices are explicitly rated for the input voltage enabling its use for high-power applications. A compact inductor is utilized for resonant operation, and the switching frequency of the converter is significantly reduced leading to reduced switching losses and improved efficiency. Zero current turn-ON and turn-OFF of the switching devices is achieved. Elimination of load-side bulky capacitor using inherent output voltage ripple reduction is achieved by aligning the switching phases of the converter such that individual capacitor voltage ripple gets cancelled out. The work extensively covers the analysis of the converter in steady-state and the effect of non-idealities during the resonant operation. Further, a detailed design of the topology with a discussion on component selection is presented. The operation of the proposed converter is systematically analyzed through a series of simulation results generated, and the converter is further validated by developing an experimental prototype at a power of 200 W with an efficiency of 95.83. © 2024 John Wiley & Sons Ltd.
| Item Type: | Journal Article |
|---|---|
| Publication: | International Journal of Circuit Theory and Applications |
| Publisher: | John Wiley and Sons Ltd |
| Additional Information: | The copyright for this article belongs to the authors. |
| Keywords: | DC-DC converters; Efficiency; Electric resistance; Topology, Design and analysis; Dissipation factors; Equivalent series resistance; Nonideal; Nonideality; Resonant operation; Resonant switched-capacitor converters; Series resistances; Switched capacitor converter; Zero-current switching, Zero current switching |
| Department/Centre: | Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology) Division of Electrical Sciences > High Voltage Engineering (merged with EE) Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research |
| Date Deposited: | 24 Oct 2024 08:53 |
| Last Modified: | 24 Oct 2024 08:53 |
| URI: | http://eprints.iisc.ac.in/id/eprint/86404 |
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