Voltage-lift technique in non-isolated boost DC-DC converters: An enhanced topology for high voltage gain applications

Navid Hadifar; Farzad Mohammadzadeh Shahir; Hamed Eivazi; Touhid Poursheykh Aliasghari

doi:10.2478/jee-2025-0022

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Voltage-lift technique in non-isolated boost DC-DC converters: An enhanced topology for high voltage gain applications

Journal of Electrical Engineering

Volume 76 (2025): Issue 3 (June 2025)

By: Navid Hadifar, Farzad Mohammadzadeh Shahir, Hamed Eivazi and Touhid Poursheykh Aliasghari

Open Access

|Jun 2025

Abstract

This paper introduces a novel non-isolated boost DC-DC converter employing the voltage-lift technique to address limitations of conventional designs. The proposed topology, comprising two switches, two inductors, three capacitors, and three diodes, achieves high voltage gain, reduces current ripple, and minimizes component stress while maintaining simplicity and cost-effectiveness. Detailed analyses in continuous current mode (CCM) explore the voltage gain characteristics and identify the conditions for stable operation. Switch current stress is examined, and critical inductance requirements are determined. A notable feature of the converter is that the voltage across the main switch remains lower than the output voltage, enhancing its operational efficiency. Validation through PSCAD/EMTDC simulations and experimental results confirm an efficiency of 96%. These findings highlight the converter’s suitability for high-performance applications in renewable energy systems, electric vehicles, and other advanced power conversion scenarios.

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Articles in this issue

DOI: https://doi.org/10.2478/jee-2025-0022 | Journal eISSN: 1339-309X | Journal ISSN: 1335-3632

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Language: English

Page range: 211 - 220

Submitted on: Jan 27, 2025

Published on: Jun 19, 2025

Published by: Slovak University of Technology in Bratislava

In partnership with: Paradigm Publishing Services

Publication frequency: 6 issues per year

Keywords:

DC-DC converter,

circuit design,

voltage-lift technique,

high efficiency,

critical inductance

Related subjects:

Engineering,

Introductions and overviews,

Engineering, other

© 2025 Navid Hadifar, Farzad Mohammadzadeh Shahir, Hamed Eivazi, Touhid Poursheykh Aliasghari, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 76 (2025): Issue 3 (June 2025)