DESIGN & FABRICATION OF A SOLAR BASED POWER CHARGER

Abstract

The increasing use of portable electronic devices has created a growing demand for reliable, portable, and environmentally friendly power sources. Conventional charging methods depend heavily on grid electricity, which is often unavailable in remote areas and contributes to environmental pollution. This project presents the design and implementation of a solar based wireless power charger that utilizes renewable solar energy to charge electronic devices through both wired (USB) and wireless methods. The proposed system consists of a solar panel, solar charge controller, 12V battery, DC–DC converters, USB output, and a wireless charging module. Solar energy is converted into electrical energy using a photovoltaic panel and regulated by the charge controller to safely charge the battery. The stored energy is then supplied to USB and wireless charging units, ensuring continuous power availability even during low sunlight conditions. Wireless charging is achieved using electromagnetic induction, providing convenient and contactless charging. The system was tested under different operating conditions, and the results demonstrate reliable performance for low power devices. Although wireless charging introduces some efficiency losses, the overall system proves to be portable, eco-friendly, and suitable for off-grid and emergency applications. This project highlights the feasibility of integrating solar energy with wireless charging technology as a sustainable alternative to conventional charging methods.