TITLE:
Modeling, Design and Experimental Validation of an MPPT Charge Controller Based on SEPIC Converter and ATMEGA 2560
AUTHORS:
Bassirou Faye, Modou Badiane, Waly Fall, Fabe Idrissa Barro
KEYWORDS:
MPPT, DC/DC Converter, SEPIC, ATMEGA 2560 Microcontroller, Battery
JOURNAL NAME:
Energy and Power Engineering,
Vol.17 No.12,
December
16,
2025
ABSTRACT: The efficient management of solar energy requires controllers capable of maximizing the power extracted from photovoltaic panels while ensuring optimum battery protection. This article presents the results of the design, realization and experimentation of a solar controller integrating a Maximum Power Point Tracking (MPPT) technique. This regulator is based on a Buck-Boost DC-DC converter with the SEPIC (Single Ended Primary Inductor Converter) configuration, designed to lower and raise voltage as required, to ensure efficient charging. To evaluate the effectiveness of the design, the regulator’s performance was analyzed by implementing a prototype, and experimental tests show that the system works well.