Solar Window Charger

Solar Window Charger

Have you ran out off your phone's battery? Don't you have any source of charging? and many more problem we people face in our day to day life with our most lovely gadget i.e. Mobile Phone.

Now all your worries have come to a dead end after the introduction of a new way of charging your mobile phones i.e. Solar Window Charger.

Solar Window Charger

A solar charger converts solar energy into electrical energy which can be used to run devices or charge batteries. 

Solar Window Portable Charger contains an ABS plastic case and a solar panel. The PV panel enclosed by silicon pads of ABS case. For boosting energy to battery, a mini USB input and USB output ports are present. It contains 1300 mAh Lithium ion battery which can be rechargeable as input and it takes 13 hours to complete its full charging of battery with the exposure of sunlight. It has an output of 5V/500mA at max.

Circuit Design Of Window Charger

Circuit design of WindowCharger

The solar charger circuit diagram is as shown above. The battery cells to be charged shows the circuit module of solar charger with voltage. This is due to 0.3 to 0.4 V drop in voltage across Schottky diode D1. Charge voltage set on P1 extends the limit of voltage of 0.3–0.4 V. Solar cells that are connected in eight series will become the solar panel for the project. The solar panel supplies nearly 140 mA -200mA or more at 8 times 0.45 V = 3.6 V. Instead of a Zener diode we can also take two normal diodes in forward bias direction and cathode that is connected to the ground.

The circuit around T2 observes the Voltage across the batteries. After the voltage gets full charged along with the solar panel, power resistor is switched on and it ends the charging of output solar panel voltage.

Features:

• It consists of built in technology to protect the device from over-charging and over-heating.
• The Window solar charger contains an LED charge indicator on the bottom edge which shows a red light when it is charging and turns green light when its battery is full or the  device is powered up.
• Window clings solar charger is eco-friendly process as solar energy is used for charging and it contains 5.5V and 1800mAh Lithium battery which can be rechargeable with input and USB output cables.

Connection Design of Charger

Advantages:

• The solar panel stores energy and these solar battery chargers are easy to carry.
• It can be used to charge mobiles, laptops and various electronic equipments.
• Bigger battery chargers are utilized for digital cameras, laptops, MP3 and iPods.
• The main advantage with this solar window charger is that it does not require any external power for charging other than solar energy.
• It is cost effective as the cost is not involved once the charger is purchased.

Disadvantages:

• The solar Window charger requires light to work means sunlight is needed for the device to get charged.
• Efficiency of photo-voltaic panels had increased.
• Charging the equipment with the help of solar window charger takes more time when compared with general charger.

Applications:

• Mobile Phones can be charged by using this technology.
• The solar window charger is easily attachable to the window and the phone is exposed to sunlight and it charges your electronic equipment.