MODIFIED HIGH GAIN DC-DC CONVERTER WITH DUAL SWITCH

  • Unique Paper ID: 187539
  • PageNo: 6831-6837
  • Abstract:
  • With the increasing adoption of solar energy sys- tems, the need for high-gain DC-DC converters has become more critical. Traditional boost converters operating at high duty cycles often suffer from poor efficiency and elevated voltage stress. To address these issues, a modified converter is proposed that operates at a lower duty cycle, reduces voltage stress, and delivers high voltage gain. This design incorporates a voltage multiplier cell comprising a capacitor and diode at the output stage of a conventional buck-boost converter, effectively minimizing the stress across switching devices. As a result, switches with lower voltage ratings can be employed. The proposed converter is well-suited for solar power applications, offering a wide voltage conversion range, steady input current, and high efficiency. A comprehensive steady-state analysis and operational study are presented. Simulation is performed using MATLAB/SIMULINK R2017b, demonstrating a peak efficiency of 85% and substan- tial voltage gain. Furthermore, a hardware prototype utilizing the TMS320F28027F microcontroller is developed, achieving an output voltage of 8.5V from a 2V input.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{187539,
        author = {DHIYA RAVI},
        title = {MODIFIED HIGH GAIN DC-DC CONVERTER WITH DUAL SWITCH},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {6},
        pages = {6831-6837},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=187539},
        abstract = {With the increasing adoption of solar energy sys- tems, the need for high-gain DC-DC converters has become more critical. Traditional boost converters operating at high duty cycles often suffer from poor efficiency and elevated voltage stress. To address these issues, a modified converter is proposed that operates at a lower duty cycle, reduces voltage stress, and delivers high voltage gain. This design incorporates a voltage multiplier cell comprising a capacitor and diode at the output stage of a conventional buck-boost converter, effectively minimizing the stress across switching devices. As a result, switches with lower voltage ratings can be employed. The proposed converter is well-suited for solar power applications, offering a wide voltage conversion range, steady input current, and high efficiency. A comprehensive steady-state analysis and operational study are presented. Simulation is performed using MATLAB/SIMULINK R2017b, demonstrating a peak efficiency of 85% and substan- tial voltage gain. Furthermore, a hardware prototype utilizing the TMS320F28027F microcontroller is developed, achieving an output voltage of 8.5V from a 2V input.},
        keywords = {Voltage Multiplier, SEPIC, Efficiency, Photo- voltaic (PV).},
        month = {November},
        }

Cite This Article

RAVI, D. (2025). MODIFIED HIGH GAIN DC-DC CONVERTER WITH DUAL SWITCH. International Journal of Innovative Research in Technology (IJIRT), 12(6), 6831–6837.

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