Design specifications and guidelines for efficient solar chargers of mobile phones

This paper discusses design requirements to efficiently gather solar energy for mobile phones. It examines current system structures such as conventional solar chargers with an aim to highlight evident weaknesses in existing system structures. Based on the analysis, the paper presents measurement results that indicate that prevailing strategies are not sophisticated enough to meet smartphone users expectations. It is important to note that the recharging time and the quantity of energy required for operational smartphones are critical. We propose design specifications that make solar changers competitive in terms of expenses when compared with universal serial bus (USB) chargers.