Research Article
Non-Isolated Dual-Output Mirror-Symmetric DC-DC Converters: Topology Construction and Analysis
Xiaofeng Dong,
Ziyun Li*,
Reng Gu,
Xuelei Jiang,
Li Zhou,
Yeye Zhu
Issue:
Volume 13, Issue 1, February 2024
Pages:
1-13
Received:
24 November 2023
Accepted:
26 December 2023
Published:
5 February 2024
Abstract: This paper proposes an improved series of a revolutionary mirror-symmetrical dual-output non-isolated dc-dc converter using the voltage lift approach. Its unique design offers a series of improvements that set it apart from traditional converters. The converter's basic architecture allows for substantial voltage transfer gains when converting dc-dc voltage, not just from positive to positive, but also from positive to negative. This flexibility sets it apart from other dual-output dc-dc converters currently available on the market.A key advantage of this converter is its simplicity. All suggested topologies employ a single power switch, eliminating the need for transformers or cascade connections. This simplicity could make it an attractive option for future practical applications. The shared ground design ensures more dependable dual-output voltages, further enhancing the converter's reliability.The theoretical foundation of this converter is rock solid, with a thorough topology analysis conducted for both discontinuous and continuous conduction modes. This analysis provides a solid foundation for understanding the converter's operation and its potential for real-world applications.To validate the suggested topologies, experimental results and simulations are presented. These results demonstrate the converter's effectiveness and confirm its theoretical advantages. They also highlight its adaptability to different operating conditions, making it a versatile solution for a range of dc-dc voltage conversion needs.
Abstract: This paper proposes an improved series of a revolutionary mirror-symmetrical dual-output non-isolated dc-dc converter using the voltage lift approach. Its unique design offers a series of improvements that set it apart from traditional converters. The converter's basic architecture allows for substantial voltage transfer gains when converting dc-dc...
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Research Article
Switched-Capacitor Enhanced Circuits for Voltage-Boosting DC-DC Converters: Principles and Applications
Yuanqing Pan*,
Dong Lv,
Chuan Lu,
Jiankan Lu
Issue:
Volume 13, Issue 1, February 2024
Pages:
14-20
Received:
6 December 2023
Accepted:
2 January 2024
Published:
21 February 2024
Abstract: With rapid advancement of DC-DC converter, the non-isolated dc-dc converters has caught much attention from academia and industry, owing to its advantages including low cost and compacted structure. Especially, the non-isolated dc-dc converters have taken the dominant position in topology design of power source. This paper introduces the concept of output section evolution in non-isolated dc-dc converters, with the aim of integrating high ratio voltage boosting capacity. To achieve this, a series of novel output enhanced circuits are proposed and discussed in detail. These circuits are structured using capacitors and diodes, making them applicable to various positive output dc-dc converters. Notably, the derived topologies in this paper eliminate the need for additional power switches and transformers. The effectiveness of the proposed approach is demonstrated through application cases based on both the classical boost converter and the developed voltage-lift SEPIC converters. These cases showcase the practical application and benefits of the proposed method. By following the topology construction method outlined in the paper, engineers can gain valuable insights and guidelines for designing circuits in the field of power electronics. Theoretical analysis has been verified in experimental prototype and the provided resources also serve as an educational tool for those studying power electronics engineering.
Abstract: With rapid advancement of DC-DC converter, the non-isolated dc-dc converters has caught much attention from academia and industry, owing to its advantages including low cost and compacted structure. Especially, the non-isolated dc-dc converters have taken the dominant position in topology design of power source. This paper introduces the concept of...
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