TFS89-SOLAR BASED MOBILE CHARGER FOR RURAL AREAS WITH BATTERY VOLTAGE ANALYZER (Electronics project)

Solar Based Mobile Charger for Rural Areas With battery voltage analyzer

Technical Specifications:

Title of the project                  :             Solar Based Mobile Charger for Rural Areas With

                                                                   battery voltage analyzer using ARDUINO

Domain                                   :           Embedded Systems

Software                                 :           Embedded C, ARDUINO IDE

Microcontroller                       :           ATMega8 / 168 / 328

Display                                    :           LCD

Power Supply                          :           5V, 750mA Regulated Power Supply

ADC0808                               :           1

Crystal                                     :           16MHz

Solar Panel                              :           12V

Applications                            :           Mobile chargers

 

ABSTRACT

With the existing push in the direction of sustainable, clean sources of power, it is no surprise that solar power has become one of the most popular alternative energy sources. Free and available everywhere, the power of the sun can be employed to power everything like cell phones and MP3 player. The sun's energy is usually harvested through solar panels that are made up of photovoltaic cells. These cells can convert the sun's power into electricity that can be used for a number of purposes. For private use, a handheld solar hybrid charger can be employed to recharge little device for instance a MP3 player, a cell phone, or a camera.

A normal PN junction diode is used for unidirectional flow of charge current. The output of the solar panel depends on the intensity of the solar light. Use of embedded technology makes this system efficient and reliable. Micro controller (ATMega8 / 168 / 328) allows dynamic and faster control. Liquid crystal display (LCD) makes the system user-friendly. ARDUINO is the heart of the circuit as it controls all the functions.

In this project the usage of solar energy by using solar panels are used .A voltage sampler is interfaced with the system to get the voltage generated on a 16X2 LCD.

An alternative charger circuit is also provided to charge the mobile by house hold general purpose 230V in the absence of the sun light. This charge circuit uses regulated 5V, 750mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/18V step down transformer.

Advantages:

·         Fit and forget system

·         Reliable

·         Compact size

·         Affordable prize (Low cost)

·         Low Maintenance

Applications:

·         It suits for all mobile phones

·         MP3 Player charger

·         Pen drive

·         Camera