Claims:1. A portable solar energy charger mounted on smartphones, wherein the solar energy charger comprises of:
a compact solar panel for collecting solar energy;
a voltage regulator to automatically maintain a constant voltage level;
a mobile charging circuit to charge the smartphone by increasing the voltage;
a PCB (Printed Circuit Board) to design a circuit board; and
a plurality of connecting wires.

2. The compact solar panel according to claim 1, characterized to convert solar energy into electrical energy to charge smartphones.

3. The mobile charging circuit according to claim 1, wherein the converted electrical energy is subjected to mobile charging circuit.

4. A method for charging the smartphones using a portable solar energy charger, wherein the method comprises steps of:
mounting a compact solar panel back side of smartphone to collect solar energy;
converting solar energy in to electrical energy using solar cells to charge smartphones;
connecting a voltage regulator to maintain a constant voltage level;
subjecting the converted electrical energy to mobile charging circuit;
placing the components to make a mobile charging circuit for charging the smartphone by increasing the voltage; and
designing a circuit on a PCB (Printed Circuit Board).

5. The portable solar energy charger according to claim 5, characterized to charge the smartphones at anywhere without a need for an external electricity source.
, Description:Technical Field of the Invention

[0001] The present invention relates to a portable solar energy charger for smartphones. More particularly, it relates to a method for charging a smartphone using a portable solar energy charger anywhere without a need for an electrical source.

Background of the Invention

[0002] Now a days with advancement in technology smart phones became an essential communication device between people. The smartphones mostly rely on electronic equipment’s for charging which consumes electricity. Comparing with older communication devices, the newly developed smartphones are portable and easy to carry. With this, correspondingly the batteries are getting smaller and smaller, so the electrical storage is relatively small and the battery life becomes short. In other words, the usage of the smart phone increased considerably and the batteries even given long lasting and more powered offered by most of the brands, getting drained very fast needing a re-charge of the same more than once daily.

[0003] People work in outdoors and frequent travelers face a serious problem of getting their smart phone batteries drained faster and dead. These people needed to carry a charger to charge the smartphone and search for an Alternative Current (AC) plug to get the same. Therefore, there is a need to provide a solar charger which is mounted on backside of the smartphone to charge the smartphone whenever and wherever required.

[0004] Currently there are many solar charging equipment’s available in market which are not convenient to carry, more complex, inferior control circuits, unsafe protection circuit designs, poor compatibility, shortening the battery life, poor charging efficiency and with cumbersome wiring.

[0005] Therefore, in order to overcome the above mentioned limitations there is a need to mount a portable solar energy charger which can charge the smartphone anywhere without a need to search for an AC plug.

Brief Summary of the Invention

[0006] A principle object of the present invention is to mount a portable solar energy charger back side of the smartphone for charging smartphones.

[0007] Another principle object of the present invention is to convert solar energy into electrical energy and this electrical energy is used to charge the smartphones.

[0008] According to a first aspect of the present invention, a portable solar energy charger for smartphones is disclosed. The solar energy charger comprises a compact solar panel for collecting solar energy and a voltage regulator to automatically maintain a constant voltage level.

[0009] The solar energy charger further comprises a mobile charging circuit to charge the smartphone by increasing the voltage, a PCB (Printed Circuit Board) to design a circuit board and a plurality of connecting wires.

[0010] The compact solar panel is characterized to convert solar energy into electrical energy to charge smart phones. Further, the converted electrical energy is subjected to mobile charging circuit.

[0011] According to a second aspect of the present invention, a method for charging the smartphones using a portable solar energy charger is disclosed. The method comprises steps of mounting a compact solar panel back side of smartphone for collecting solar energy and converting the solar energy in to electrical energy using solar cells to charge smartphones.

[0012] In accordance with the second aspect of the present invention, the method further comprises steps of connecting a voltage regulator to maintain a constant voltage level and subjecting the converted electrical energy to mobile charging circuit.

[0013] In accordance with the second aspect of the present invention, further the method comprises steps of placing the components to make a mobile charging circuit for charging the smartphone by increasing the voltage and designing a circuit on a PCB (Printed Circuit Board).

[0014] In accordance with the second aspect of the present invention, wherein the portable solar charger is characterized to charge the smartphones at anywhere without a need for an external electricity source.

Brief Description of the Drawings

[0015] Other objects and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein

FIG. 1 illustrates a block diagram depicting the process of charging a smart phone using a portable solar energy charger according to the present invention.

Detailed Description of the Invention

[0016] In accordance with a first exemplary embodiment of the present invention, a portable solar energy charger for smartphones is disclosed. The solar energy charger comprises a compact solar panel for collecting solar energy and a voltage regulator to automatically maintain a constant voltage level.

[0017] In accordance with the first exemplary embodiment of the present invention, the solar energy charger further comprises a mobile charging circuit to charge the smartphone by increasing the voltage, a PCB (Printed Circuit Board) to design a circuit board and a plurality of connecting wires.

[0018] In accordance with the first exemplary embodiment of the present invention, the compact solar panel is characterized to convert solar energy into electrical energy to charge smartphones.

[0019] In accordance with the first exemplary embodiment of the present invention, further the converted electrical energy is subjected to mobile charging circuit.

[0020] In accordance with a second exemplary embodiment of the present invention, a method for charging the smartphones using a portable solar energy charger is disclosed. The method comprises steps of mounting a compact solar panel backside of the smartphone to collect solar energy and converting the solar energy in to electrical energy using solar cells to charge smartphones.

[0021] In accordance with the second exemplary embodiment of the present invention, the method further comprises steps of connecting a voltage regulator to maintain a constant voltage level and subjecting the converted electrical energy to mobile charging circuit.

[0022] In accordance with the second exemplary embodiment of the present invention, further the method comprises steps of placing the components to make a mobile charging circuit for charging the smartphone by increasing the voltage and designing a circuit on a PCB (Printed Circuit Board).

[0023] In accordance with the second exemplary embodiment of the present invention, wherein the portable solar charger is characterized to charge the smartphones at anywhere without a need for an external electricity source.

[0024] Referring to the drawings, FIG. 1 illustrates a block diagram 100 depicting the process of mounting a portable solar energy charger back side of the smartphone according to the present invention. A compact solar panel 102 is mounted on backside of smartphone to collect solar energy, the collected solar energy is converted into electrical energy by using solar panels 102 to charge the smartphone 112. The converted electrical energy from solar panel 102 is transferred to charging circuit 104 to charge the smartphone 112.

[0025] The charging circuit 104 comprises a voltage regulator 106 and a USB port 108. The electrical energy received from the solar panel 102 is transferred to the voltage regulator 106 to maintain a constant voltage levels. The components are placed on a PCB (Printed Circuit Board) with a plurality of connecting wires to design a circuit to make a mobile charging circuit to charge the smartphone 112 by increasing the voltage. The output voltage is finally transferred to the smartphone 108 through the Universal Serial Bus (USB) port 106 by connecting a data cable 110 to the smart phone 112.

[0026] In one embodiment the product is designed in order to overcome the charging problem of the smart phones. The product is designed to charge the smartphones at anywhere without a need for an external electricity source. The product can also be used at night time by providing maximum light. The overall product cost is very less, easy to carry and saves electricity.