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A novel high step-up, low switching voltage stress DC-DC converter using leakage inductance for resonant boosting
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  • Yin Chen,
  • Haibin Li,
  • Huaming Chen,
  • Tao Jin
Yin Chen
Fuzhou University Department of Electrical Engineering
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Haibin Li
Fuzhou University Department of Electrical Engineering
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Huaming Chen
Fuzhou University Department of Electrical Engineering
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Tao Jin
Fuzhou University Department of Electrical Engineering

Corresponding Author:jintly@fzu.edu.cn

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Abstract

This article proposes a high step-up, low switching voltage stress DC-DC converter based on the traditional Boost circuit, incorporating switched-capacitor (SC) and coupled-inductor (CL) techniques. The design approach of this converter involves replacing the single switch in a single-switch DC-DC converter with SC, combining CL together, and integrating the resonant boost circuit with the Boost circuit. Compared to other traditional DC-DC converters, the improved topology of the power switches in this design exhibits lower voltage stress, lower diode current stress, fewer total components, and a common ground. The working mode and steady-state analysis of the converter are provided, and the stress derivation of the components and theoretical efficiency analysis are conducted. A comparison with other DC-DC converters is also performed. Finally, experiments are conducted on a 200W DC-DC converter prototype to verify the reliability of this converter.
19 Apr 2024Submitted to International Journal of Circuit Theory and Applications
20 Apr 2024Reviewer(s) Assigned
11 May 2024Review(s) Completed, Editorial Evaluation Pending
01 Jul 20241st Revision Received
05 Jul 2024Assigned to Editor
05 Jul 2024Submission Checks Completed
05 Jul 2024Review(s) Completed, Editorial Evaluation Pending
29 Jul 2024Editorial Decision: Accept