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Solar PV Based Mobile Charger in MATLAB

Solar PV Based Mobile Charger in MATLAB


The demand for sustainable energy solutions has spurred the development of innovative technologies, among them, solar-powered mobile battery chargers. These devices offer a green alternative to traditional charging methods, harnessing the abundant power of the sun to recharge smartphones and other portable electronics on the move. This guide offers insights into the workings of solar-powered chargers, from understanding their componentry and operational principles to optimizing their performance for efficient energy conversion. Join us as we delve into the realm of solar energy and explore its potential to revolutionize the way we power our mobile devices, one sunbeam at a time.

Solar Panel Configuration

The charger's core component is the solar panel, which can be customized to suit specific power requirements. By adjusting the panel's configuration – either in parallel or series strings – users can alter its power output. For instance, a single solar panel typically provides 9 Watts of power. However, by combining panels in parallel strings, the overall power rating can be increased.

Battery Charger Ratings

The charger is designed to accommodate different battery capacities, with ratings ranging from 20 to 50 Watts. Users can adjust the charger's settings to match the power requirements of their devices. For example, configuring the charger for a 20-Watt output involves setting the parallel string value to 2.

Operational Simulation

To illustrate the charger's functionality, we conducted a simulation using specific parameters. The simulation involved monitoring variables such as solar panel voltage and current, battery voltage, and charging current. Additionally, we considered a lithium-ion battery with a 5-volt rating and a capacity of 6000 milliampere-hours (mAh).

Charging Process

During the simulation, we observed the charging process in real-time. The solar panel generated power, which was then regulated and directed to charge the battery. The charging current varied depending on factors such as solar panel power rating and battery capacity.

Performance Comparison

We compared the charging performance of different solar panel configurations. For instance, using a 9-watt panel resulted in a slower charging rate compared to a 45-watt panel. By analyzing the data, users can estimate charging times and optimize the charger's settings accordingly.


In conclusion, a solar-powered mobile battery charger offers a sustainable and versatile solution for charging devices on the go. By understanding its components and operational principles, users can maximize its efficiency and harness renewable energy sources effectively.

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