International Journal of Scientific Research and Review ISSN NO: 2279-543X SOLAR CELLS FOR MOBILE CHARGING (PISUPATI BHARGAV)1 (VANGA SAI NAGA VAMSI)2 1 (STUDENT, DEPT OF ELECTRONICS AND COMMUNICATION ENGINEERING, SREENIDHI INSTITUTE OF SCIENCE AND TECHNOLOGY, HYDERABAD, INDIA) 2 (STUDENT, DEPT OF ELECTRONICS AND COMMUNICATION ENGINEERING, SREENIDHI INSTITUTE OF SCIENCE AND TECHNOLOGY, HYDERABAD, INDIA) Abstract Keywords: Portable devices, hassle free, solar panel, battery, voltage regulator. In today’s day and age where smart phones are an integral part of life. it is very essential to 1. Introduction always have adequate charge in portable Solar mobile chargers use solar panels to charge devices . It is not always easy to find a charging their batteries.They can be used once no socket. Therefore, making use of renewable electricity provide is available—either mains sources of energy such as solar energy can be or, as an example, a vehicle battery—and ar very useful in providing a hassle free solution generally advised as the simplest way to charge to the problems faced by consumers due to lack phones while not overwhelming mains of conventional chargers. electricity, unlike electrical cell phone Our proposed method makes use of non- chargers.Some may also be used as a traditional conventional sources of energy to charge charger by plugging into associate wall devices. The Primary principle of this project is socket.Some chargers have an interior to convert solar energy to electrical energy. In reversible battery that is charged in daylight this particular model, solar energy is used to then accustomed charge a phone; others charge generate voltage required to charge mobile the phone directly.There also are public solar phone batteries. A solar panel of 12V, 10W is chargers for mobile phones which may be put used, the output of which varies based on the in for good publicly places like streets, park and intensity of incident light. This output is squares.One such is that the arbutus public solar regulated through a control unit and is stored in charger. Solar cell phone chargers are available a battery. This battery produces an output of in completely different shapes and 12V which can be used directly to charge the configurations as well as folding (Goal Zero, load. A 9V fixed output can be obtained by Endless Sun Solar) and types that unfold like regulating the voltage from battery using a petals.They additionally are available in the voltage regulator and can be used to charge a shape of straps, with solar cells on the outer 9V load. Through this, requirement of surface and a rechargeable battery inside.Solar electricity can be completely eliminated to cell technology limits the effectiveness and provide a solution to the problems faced by practicality of phone solar chargers for consumers. everyday use.Phone charge times vary betting on the solar array size and potency, or the Several schemes have been implemented to battery capacity of models with batteries, realize solar energy based mobile chargers. further extending the charge times of solar However, our proposed device should be able chargers.The fold-out design provides a larger to operate with more efficiency in a cost solar panel, hence higher charge current, and is effective manner and allows for charging of compact when not in use.Solar chargers may be devices anywhere and at any time. The accustomed charge alternative reversible proposed device is user friendly, environment friendly and cost effective. Volume 8, Issue 5, 2019 Page No: 299 International Journal of Scientific Research and Review ISSN NO: 2279-543X devices with necessities kind of like a portable, chargers associate degreed in some cases is such as Bluetooth headsets and music players. blocked into an electric outlet. Solar chargers used to charge a phone directly, • There also are public star chargers for mobile rather than by using an internal battery, can phones which may be put in for good publically damage a phone if the output is not well- places like streets, park and squares. controlled, for example by supplying excessive • The model that is per European Commission voltage in bright sunlight. In less bright announced because the 1st within the world is lightweight, though there's electrical output it that the Arbutus unedo, public solar charger should be too low to support charging, it'll not invented by Strawberry energy Company. simply charge slower. This star station won the primary place at "EU 2. Literature Survey property energy week (EUSEW) 2011" within The current market leader in efficient solar the intense class. energy modules is Sun Power, whose solar • Some models of cell phones have a in-built panels have a conversion ratio of 19.3%, with star charger and area unit commercially on the Sanyo having the most efficient modules at market for GSM cellular phone models. 20.4%. However, a whole range of other companies (Holo Sun, Gamma Solar, Nano • Electric cell phone chargers are available Horizons) are emerging which are also offering totally different shapes and configurations as new innovations in photovoltaic modules, with well as folding and rotating varieties. a conversion ratio of around 18%. Based on analysis and researches from These new innovations embrace power alternative journal, the batteries are the generation on the front and back sides and dominant type of power storage and delivery increased outputs; but, most of these companies for electronic devices over the past one hundred have not yet produced working systems from years, thus their consideration for use in sensor their designplans, and area unit principally still node is natural. So, the batteries are the main actively rising the technology. solution at present, but unless they can provide very long lifetime while not dominating the size The term "photovoltaic" comes from the Greek or cost of the nodes, the battery will be a (photo) suggests that "light", and "voltaic", significant deterrent to widespread adoption of means electric ,from the name of the Italian these technologies. physicist “VOLTA "after whom a unit of Wireless Solar Mobile Phone Charger proposed electro-motive force, the volt is named. The sun Mohammad Asif1 ,Sameer Ahmad Mir2 could be a star created from atomic number 1 ,Shakir Khursheed Baba who have considered and element gas and it radiates a huge quantity IPhone 4 as prototype model. Two different of energy each second . solarpanels used on phones, one on front and A solar cell is associate degree device that another on back. The dimensions of the IPhone convert the energy of sunshine directly into 4 are 110 mm high by 59 mm wide. So a solar electricity by electrical phenomenon result.The panel of dimensions 100 mm by 50 mm would operation of a electrical phenomenon (PV) cell be used to cover the back side of the phone. The needs three basic attributes: The absorption of mobile phone can be charged anywhere, sunshine, generating either electron-hole pairs anytime by simply placing the mobile phone or excitons.The separation of charge carriers of upside down, as this side would be the most opposite types.The separate extraction of these efficient energy absorbing cell of the two films carriers to associate degree external circuit.In used on this device. In fact, recharging of a Li- contrast, a solar thermal collector collects heat ion battery is an endothermicprocess which by absSolar cell phone chargers use solar panels means the battery absorbs heat when it to charge cell phone batteries.They are an recharges and thus there is no additional heat alternate to traditional electrical telephone produced in the process. Volume 8, Issue 5, 2019 Page No: 300 International Journal of Scientific Research and Review ISSN NO: 2279-543X Elizabeth de regt and Juan d diaz proposed unit important in providing correct and a solar cell phone charger in which These repeatable charge methodology. panels are made using 3 original cells that are split into 4 smaller cells.The attachment Pragnesh B. Gohil, UG. Digvijay P. Jadav, can improve the voltage to the desired UG. Chirag N. Katakiya, Prof. Jaydipsinh quantity (5V) whereas regulation the B. Zala proposed that they follow like an present throughoutthe charging method. example of any electrical system. It must The merchandiseought tobe simple to have a source, a function, and an output. envision and may minimize style For our source, we will be using solar complexness, however ought to be sturdy panels optimized with solar tracking. The and ready to resist harmonce handled on a system will contain the microcontroller to routine . It ought to be esthetically act as a charge controller and an inverter to appealing and easy to use so the general co nvert from 12 Volt DC stored in the public will use it while not help, the batteries to 110 Volt AC as the output. merchandise ought to be ready to charge a Figure 2 below shows a block diagram of telephone during a similar time-frame to the system. The solar tracker would be the current technique, that means inside affixed to the solar panel and would relay half dozen hours for an entire charge cycle information to the microcontroller. and the merchandise ought to be versatile and charge the various telephone brands out 3. Proposed work there within the community.This paper Our idea was to provide charging for mobiles analyzes about the potential power sources irrespective of any location and what could be for sensor nodes. Analysis between power a better source of energy than the Sun. sources, such as batteries power and Solar The project has a 12v Solar panel with a voltage cell power from energy harvesting for regulator and it is connected to TP4056 Li-on sensor node.In order to provide a general Battery charger which on the other end is understanding of the various sources of attached to a Li-on battery of 7000mah.