Shahid Beheshti University International Journal of Research and Technology in Electrical Industry 2821-0190 4 2 2025 07 01 An Improved Quadratic Boost Converter Suitable for Photovoltaic Applications 106742 10.48308/ijrtei.2026.241596.1103 EN Mehran Mahdiani Faculty of electrical engineering, Shahid Beheshti University, Tehran, Iran Ebrahim Afjei Faculty of electrical engineering, Shahid Beheshti University, Tehran, Iran Journal Article 2025 10 04 Non-isolated DC–DC converters offer an effective solution to the limitations of isolated counterparts. This study proposes a new non-isolated DC–DC converter that integrates a conventional boost converter with a diode–capacitor voltage multiplier cell (VMC). The higher voltage gain is achieved without increasing the number of inductors, which remains the same as in Cuk, SEPIC, and Zeta converters. Similar to boost, Cuk, and SEPIC converters, the proposed topology ensures continuous input current and subjects the input filter capacitor to low current stress. It also provides a common ground between the load and source while maintaining positive output polarity. In addition to delivering a high voltage gain, the converter achieves low and acceptable voltage/current stresses on the semiconductors. Both ideal and non-ideal operating modes are analyzed. Finally, experimental results are presented to validate the theoretical analysis and relation, with a 200 W prototype designed for 40 V input and 400 V output.