THEREOF

FIELD OF TECHNOLOGY

[0001 ] The present invention relates generally to charging units. More particularly, the present invention relates to a wireless power charger and a charging method thereof.

BACKGROUND

[0002] With the advancement of technology, and day by day change in user lifestyles, smart electronic devices such as a mobile phone or smart phone, a portable music player like an iPod® or an MP3 player, a tablet, a portable gaming unit, a camera, and other electronic products have been widely accepted in the market. Current smart devices have gradually been taking the replacement of conventional electronic devices, such as cellular mobile devices are being replaced by smart phones, conventional digital cameras are being replaced with high quality smart cameras, and the like. However, the smart devices are equipped with larger screens and higher resolution, and one or more processors that can consume more power than conventional electronic devices. Even though the users are enjoying the features provided by the smart devices, but at the same time drainage of power has become a bigger inconvenience for the users.

[0003] To solve the problem, each of these devices requires frequent recharging. Such electronic devices typically utilize a cable for connecting the device to a power source, such as a wall outlet, a car charger, an airplane charger, or a computer. However, a separate cable is usually required for each power source. Moreover, different electronic devices often utilize different connection ports and interfaces such that a single charging cable is not compatible with multiple devices. Accordingly, a tech-savvy consumer, with several electronic devices, will usually have multiple charging cables to keep track of. Even then, the consumer may be without sufficient power to recharge a phone due to bad weather or a power outage, or due to unavailability of charging ports during travel, or may not always be in a place where a power source is readily available, or even if so, may not have the appropriate cable or adapter available to use with a particular power source.

[0004] To solve the herein above-mentioned problems, people came up with devices such as power banks aka external battery packs that can provide the required additional power to the smart devices on the move. The power banks can be connected to the charging ports and can be charged, and when during normal use the smart device requires additional power, then the smart device can be connected to the power bank and the required power charge can be provided to it, thereby overcoming the problem of power crisis at that instance.

[0005] But, what if the smart device consumes all the power provided by the power bank and still requires more power? In that instance, the smart device may face a power crisis as well as the power bank not having any power. Further, in the current telecommunication world, most of the users use smart phones and other electronic gadgets that work using wireless communication technology. Even though most of the devices run on wireless technology, most of the wireless radio frequency (RF) waveforms including, but not limited to, GSM, CDMA, AM, FM, 2.4GHz Wi-Fi, 5GHz Wi-Fi, Microwave, Milliwave, Bluetooth, Infrared, and the like; all the smart devices completely fail to consume all the waveforms transmitted to them and portions will get dispersed in the air.

[0006] The dispersed RF waveform or signal can be of no use to the smart device as it is a stray signal. Currently, there is no method or wireless power charger device available that can use the stray signals left by the smart devices and can generate current from that so that the generated current can be used for charging of the smart devices. Further, there is no method or power charger device available that can provide the information to the user upon complete charging of the smart device.

[0007] Thus, there is a compelling need for a device, and a method that can use RF waveforms to generate current that can be used for charging of the smart devices. Further, there is a need for a device, and a method that can provide the information to the user upon complete charging of the smart device.

[0008] The above-mentioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specifications.

SUMMARY

[0009] The various embodiments herein disclose a wireless power charger and a charging method thereof. According to an embodiment of the present invention, the wireless power charger comprising one or more rectenna modules, wherein the rectenna modules comprises of an antenna that receives one or more types of radio frequency (RF) waveforms, a rectifier that converts the one or more types of RF waveforms received from the antenna into current, a storage module that stores the generated current from the one or more types of RF waveforms received from the antenna, a microcontroller that controls the flow of current to the storage module, one or more ports for at least one of input and output of current from the storage module, and a display unit that displays information to user.

[0001 0] According to an embodiment of the present invention, the wireless power charger further comprises of an amplification circuit that amplifies the current obtained from the rectenna. According to another embodiment of the present invention, the wireless power charger further comprises of a DC-to-DC converter unit that converts the obtained DC current to usable DC current. According to another embodiment of the present invention, the wireless power charger further comprises of a safety compliance unit, wherein the safety compliance unit maintains set of threshold values for the charger and shuts down the charger if the generated current exceeds the threshold value.

[0001 1 ] According to an embodiment of the present invention, the display unit is at least one of LED display, a touch screen, and E-ink display and the like. According to another embodiment of the present invention, the RF waveform can be of at least one variety of GSM, CDMA, AM, FM, 2.4GHz Wi-Fi, 5GHz Wi-Fi, Microwave, Milliwave, Bluetooth, Infrared, and the like. According to another embodiment of the present invention, the storage module is a current storing battery of at least one type of Li-Ion battery, Li-Poly battery, NiMH battery and the like. According to another embodiment of the present invention, the RF waveforms received by the antenna are one or more of un-used, free, non-encrypted and lower bandwidth signals.

[0001 2 ] According to an embodiment of the present invention, a user profile can be used to authenticate the user before charging one or more smart devices, wherein the authentication of the user can be done using at least one of log in using user name and password, one time password (OTP), biometric scanning, and barcode scanning, and wherein the user profile can be saved in a database unit of the wireless power charger. According to another embodiment of the present invention, the wireless charger generates a notification to the user upon a change in the state during charging that includes at least one of successful charging of the smart device, failure in charging of the smart device, upon identifying new smart device being connected for charging, upon successful authentication for the user profile, and upon unsuccessful authentication of the user profile, wherein the generating of the notification includes at least one of alarm generation, vibration, sending SMS, mail notification, and voice call.

[0001 3 ] According to yet another embodiment of the present invention, a method of charging a wireless power charger, the method comprises of receiving, by one or more antennas that are part of a rectenna, one or more types of radio frequency (RF) waveforms, converting, by one or more rectifiers that are part of the rectenna, one or more types of RF waveforms received from the antenna into current, storing, by a storage module, generated current from the one or more types of RF waveforms received from the antenna, controlling, by one or more microcontrollers, the flow of current to the storage module, at least one of input and output, by one or more ports, of the current from the storage module, and displaying, by a display unit, information to a user of the wireless power charger.

[0001 4] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF THE DRAWINGS

[0001 5 ] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which: [0001 6] Figure 1 is schematic block diagram illustrating a wireless power charger, according to an embodiment of the present invention.

[0001 7] Figure 2 is a schematic block diagram illustrating a rectenna of the wireless power charger, according to an embodiment of the present invention.

[0001 8] Figure 3a is an exemplary circuit diagram illustrating the rectenna as described in the Figure 2 , with an accompanying circuit diagram Figure 3a(ii) illustrating the charging indicator, according to an embodiment of the present invention.

[0001 9] Figure 3b is a schematic diagram illustrating power transfer to a mobile device using a wireless power charger, with an accompanying schematic diagram Figure 3b(ii) illustrating the battery charging level indicator, according to an embodiment of the present invention.

[00020] Figure 4 and Figure 5 is a schematic diagram illustrating a use case, according to an embodiment of the present invention.

[00021 ] Figure 6 is a schematic diagram illustrating charging of a wireless power charger using another wireless power charger, according to an embodiment of the present invention.

[00022 ] Figure 7 is a schematic diagram illustrating various exemplary use cases of the wireless power charger, according to an embodiment of the present invention.

[00023 ] Figure 8 is a schematic diagram illustrating various other exemplary use cases describing implementation of the wireless power charger, according to an embodiment of the present invention.

[00024] Figure 9 is a schematic flow diagram illustrating a method of charging a wireless power charger, according to an embodiment of the present invention. [00025 ] Although specific features of the present invention are shown in some drawings and not in others. This is done for convenience only as each feature may be combined with any or all of the other features in accordance with the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[00026] The various embodiments herein disclose a wireless power charger and a method thereof for charging wireless devices. In the following detailed description of the embodiments of the invention, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration of specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.

[00027] The specification may refer to "an", "one" or "some" embodiment(s) in several locations. This does not necessarily imply that each such reference is to the same embodiment(s), or that the feature only applies to a single embodiment. Single features of different embodiments may also be combined to provide other embodiments.

[00028] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms "includes", "comprises", "including" and/or "comprising" when used in this specification, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations and arrangements of one or more of the associated listed items.

[00029] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[00030] The present invention discloses a wireless power charger and a method for charging thereof, wherein the wireless power charger device can receive radio frequency (RF) signals from air, convert the received signals into current that can be used for charging of the electronic devices. The wireless power charger device can receive RF and charge electronic devices simultaneously. The present invention can be described in detail with respect to the diagrams as herein below. The present invention is described with the following embodiments without restricting the scope of the invention, and the person having ordinarily skilled in the art can identify various other embodiments.

[00031 ] Figure ! is schematic block diagram illustrating a wireless power charger 1 00, according to an embodiment of the present invention. According to the block diagram, the wireless power charger 1 00 comprises of a rectenna 1 02, a DC-to-DC converter 1 04, a storage module 1 06, a microcontroller 1 08, a database unit 1 1 0, a display unit 1 1 2, and one or more ports 1 1 4. The wireless power charger 1 00 receives one or more types of wireless RF signals, converts the received signals into current and can be used as electrical power to charge electronic devices. The rectenna 1 02 receives the RF signals and converts the received signals into current. The rectenna 1 02 can be described in detail with respect to Figure 2.

[00032 ] Figure 2 is a schematic block diagram illustrating a rectenna 200 of the wireless power charger, according to an embodiment of the present invention. The rectenna 200 comprises of an antenna 202, a rectifier 204 and an amplification circuit 206. The rectifier and the antenna unit together make the rectenna unit that receives one or more types of RF signals and convert the signals into the current, and hence the name.

[00033 ] The antenna 202 can receive the one or more types of RF signals present in the air and can provide to the rectifier 204 of the rectenna. In an embodiment of the present invention, the RF waveforms received by the antenna 202 are one or more of, but not limited to, un-used, free, non-encrypted, lower bandwidth signals, and the like. In another embodiment of the present invention, the RF waveforms received by the antenna 202 can be strong RF waveforms/signals sent to any of the electronic devices. In an embodiment of the present invention, the one or more types of RF signals received by the antenna can be, but not limited to, GSM, CDMA, AM, FM, 2.4GHz Wi-Fi, 5GHz Wi-Fi, Microwave, Milliwave, Bluetooth, Infrared and the like.

[00034] Further, the rectenna 200 comprises of the rectifier 204, wherein the rectifier 204 receives the RF signals and rectifies the received signals to convert the one or more types of RF waveforms received from the antenna into current. The generated current from the rectified RF signals can be low current. In an embodiment of the present invention, the generated current can be of the power of the range of l Amp - 5 Amp. In an embodiment of the present invention, the current generated by the rectifier can be based on the bandwidth of the RF signals received by the antenna 202. The person having ordinarily skilled in the art can understand that current of varying charges and power can be generated by the rectifier depending on the received bandwidth of the RF signals and capacity of the rectifier, without departing from the scope of the invention.

[00035 ] Further, in an embodiment of the present invention, the rectenna 200 can comprise of the amplifier circuit 206, wherein the amplifier circuit 206 can receive the current from the rectifier 204 and amplify the current to higher voltage. In an embodiment of the present invention, the amplification circuit can amplify the current based on the current obtained from the rectifier 204.

[00036] According to an embodiment of the present invention, the rectenna 200 can be made up of at least one of the materials of the type, but not limited to, copper, graphene, and the like, and the person having ordinarily skilled in the art can understand that rectennas made up of any other type of material can be used for receiving RF waveforms and generating current, without departing from the scope of the invention. In one embodiment of the present invention, the rectenna 200 can be made up of a material that can be electro- conductive in nature.

[00037] In another embodiment of the present invention, two or more rectennas can be used by the wireless power charger 1 00 to generate the current by receiving the RF waveforms. In another embodiment of the present invention, the two or more rectennas can be arranged in any of the arrangement type that includes, but not limited to, series, parallel star, mesh, and the like, to generate more current. The person having ordinarily skilled in the art can use any of the arrangement type to generate maximum current from the RF waveforms received by the antenna 202 of the rectenna 200, without departing from the scope of the invention.

[00038] Figure 3a is an exemplary circuit diagram 300 illustrating the rectenna 200 as described in the Figure 2 , according to an embodiment of the present invention. The circuit diagram 300 illustrated in the Figure 3a comprises of one or more antennas to received one or more types of RF waveforms/signals and a rectifier circuit to generate current from the received RF waveforms. This is accompanied by Figure 3a(ii), an exemplary circuit diagram 301 comprises of one or more rectennas used to independently power an indicator to give the user the ability to gauge the strength of the one or more types of RF waveforms/signals. The person having ordinarily skilled in the art can understand that any of the type of circuit arrangements can be made from the rectifier and antenna units to form the rectenna circuit, without departing from the scope of the invention.

[00039] Further, the wireless power charger 1 00 comprises of the DC-to-DC converter 1 04, wherein the DC-to-DC converter 1 04 receives the current from the rectenna 1 02 and convert the current to DC current. In an embodiment of the present invention, the converter unit can be AC to DC converter that can receive the current from the rectenna and can convert the current to the DC current. Any type of current converter unit can be used in the wireless power charger 1 00 to convert the current to DC current, without departing from the scope of the invention. The DC current obtained from the DC-to-DC converter can be in usable format for the user. [00040] Further, the wireless power charger 1 00 comprises of the storage module 1 06 that receives and stores the generated current from the one or more types of RF waveforms received from the antenna of the rectenna 1 02. The stored current can be used later for various purposes such as, but not limited to, charging various types of electronic devices, lighting one or more light sources, and the like. In an embodiment of the present invention, the storage device can be a current storing battery of at least one type of, but not limited to, Li- Ion battery, Li-Poly battery, NiMH battery and the like. The person having ordinarily skilled in the art can understand that any other type of battery can be used to store the current generated for later use, without departing from the scope of the invention.

[00041 ] The wireless power charger 1 00 further comprises of the microcontroller 1 08 that controls the flow of current to the storage module 1 06. The microcontroller can be at least one or group of microcontrollers that can monitor the received RF signal strength, current generated from the rectifier unit, current amplified by the amplifier circuit, generated current being converted to the DC current, and storing the current in the storage battery.

[00042 ] In an embodiment of the present invention, the wireless power charger can further comprise of a safety compliance unit, wherein the safety compliance unit takes care of safety of the wireless power charger 1 00. The safety compliance unit maintains set of threshold values for the charger and always compares the current generated by the rectenna 1 02. The safety compliance unit can compare the current generated with the threshold values. In an embodiment of the present invention, the safety compliance unit can compare the generated current with the threshold values at predefined time intervals. In another embodiment of the present invention the safety compliance unit compares the generated current with the threshold values as the current is generated. If the safety compliance unit identifies that the generated current exceeds the threshold value, then the safety compliance unit can shut down the wireless power charger 1 00.

[00043 ] In an embodiment of the present invention, the safety compliance unit can be an independent unit in the wireless power charger. In another embodiment of the present invention, the safety compliance unit can be part of the microcontroller, and thus while the microcontroller monitors flow of current to the storage module, it also checks whether the generated current is less than the threshold value or exceeds the threshold value. If the generated current is less than the threshold value, then the current can be stored in the storage module; otherwise, the microcontroller can shut down the wireless power charger.

[00044] Further, the wireless power charger 1 00 comprises of the one or more ports 1 1 4, wherein the one or more ports 1 1 4 can be used for either input and/or sharing of current. In an embodiment of the present invention, the one or more ports can be used for outputting the stored current from the storage module. In another embodiment of the present invention, the one or more ports can be used for inputting current from charging ports or external power source to the storage unit, such that the wireless power charger 1 00 can also receive the input current from the external one or more types of power sources, such as but not limited to, DC current, external battery provided current, and the like. The person having ordinarily skilled in the art can understand that any other type of external power source can be used for inputting current to the storage unit of the wireless power charger without departing from the scope of the invention. In another embodiment of the present invention, the one or more ports 1 1 4 can be used for both input current to the storage unit as well as output current from the storage unit. [00045 ] In an embodiment of the present invention, the one or more ports 1 1 4 can be used to connect one or more electronic devices to the wireless power charger and use the current stored in the storage module 1 06 to charge the connected electronic device, wherein the connected electronic device can be any of the, but not limited to, mobile phones, laptop, PDA, and the like. The person having ordinarily skilled in the art can understand that any of the devices that needs to be charged can be connected to the wireless power charger for charging, without departing from the scope of the invention. In an embodiment of the present invention, the one or more ports 1 1 4 of the wireless power charger can be of any of the known standard type, and the person having ordinarily skilled in the art can understand any of the standard type port can be used as the ports, without departing from the scope of the invention.

[00046] Further, the wireless power charger 1 00 comprises of the display unit 1 1 2 that acts as user interface between the wireless power charger 1 00 and the user. The display unit 1 1 2 can receive information from the microcontroller 1 08 and other units, and can provide the information to the user. In an embodiment of the present invention, the display unit 1 1 2 can only display the information to the user acting as output unit. In another embodiment of the present invention, the display unit 1 1 2 can act as both input unit as well as output unit, wherein the display unit 1 1 2 can display information to the user as well as taking inputs from the user.

[00047] In an embodiment of the present invention, the display unit 1 1 2 can be at least one of, but not limited to, LED display, a touch screen, E-ink display and the like. In an embodiment of the present invention, the display unit 1 1 2 can comprise one or more of, but not limited to, a key pad, a touch sensitive screen, a joy stick, and the like to receive inputs from the user. In another embodiment of the present invention, the display unit 1 1 2 can comprise of microphone to receive voice inputs from the user. In yet another embodiment of the present invention, the display unit 1 1 2 can comprise of a speaker that can provide audible outputs that can include, but not limited to, beep, user set music tone, and the like to the user. The person having ordinarily skilled in the art can understand that any combination or all of the input and output devices can be used as the display unit in the wireless power charger without departing from the scope of the invention.

[00048] In another embodiment of the present invention, a user profile can be created and used for accessing the wireless power charger 1 00 and use the current stored in the storage module 1 06 of the wireless power charger 1 00. In an embodiment of the present invention, the user profile can be used to authenticate the user before charging one or more smart devices. In an embodiment of the present invention, the authentication of the user can be done using at least one of, but not limited to, log in using user name and password, one time password (OTP), biometric scanning, barcode scanning, and the like, without departing from the scope of the invention.

[00049] Further, the wireless power charger 1 00 comprises of the database unit 1 1 0 that stores the user profiles of the user. The user profiles can be saved in the database unit 1 1 0 so that the wireless power charger 1 00 can identify the user when he wishes to charge the device and allows charging of the connected device. In an embodiment of the present invention, the database unit 1 1 0 can be present within the wireless power charger 1 00. In an embodiment of the present invention, the database unit 1 1 0 can be an external device that can be connected to the wireless power charger 1 00, without departing from the scope of the invention. [00050] In an embodiment of the present invention, the wireless power charger 1 00 can generate a notification to the user upon identifying that the device is being connected to the charger 1 00 and observing change in the state during charging that includes at least one of, but not limited to, successful charging of the connected device, failure in charging of the connected device, upon identifying new connected device being connected for charging, upon successful authentication for the user profile, upon unsuccessful authentication of the user profile, and the like. In an embodiment of the present invention, the generating of the notification includes at least one of, but not limited to, alarm generation, vibration, sending SMS, mail notification, voice call, and the like.

[00051 ] In an embodiment of the present invention, the wireless power charger 1 00 may wait for a predefined time to get a reply from the user or set of action(s) taken by the user in reply to the notification message. In one embodiment of the present invention, the charger 1 00 may automatically disconnect the charging from the mobile device and route the charging to other mobile devices or gadgets or other chargeable devices that are in vicinity of the wireless power charger 1 00.

[00052 ] The present invention can be described with various embodiments and use cases, and the person having ordinarily skilled in the art can understand that the present invention can be applied in various other use cases can without limiting the scope of the invention. Let us consider a use case described with respect to Figure 4.

[00053 ] Figure 3b is a schematic diagram 302 illustrating charging a mobile device using a wireless power charger, according to an embodiment of the present invention, with Figure 3b(ii) a schematic diagram 303 illustrating the battery charging level indicator that can be optionally used to provide dedicated power to the database unit 1 1 0 and/or the display unit 1 1 2, both in Figure 1 . According to the Figure 4, the diagram 400 comprises of the wireless power charger 402 and the mobile device 404, wherein the mobile device 404 is connected to a port of the wireless power charger 402 using a charging cable. The wireless power charger 402 can be storing the current in the storage unit, which can be generated by receiving stray signals using antenna and a rectifier of the wireless power charger 402 converting the signals into current. When the mobile device 404 is connected to the wireless power charger 402 using the cable, the wireless power charger 402 can identify that a device is being connected to one of the ports and thus needs to be charged. Upon identifying the device, the wireless power charger 402 starts providing current stored in the storage unit.

[00054] The wireless power charger 402 can continue charging the mobile device 404 until the mobile device 404 is connected to its port or till the device 404 is completely charged. Once the device 404 gets completely charged, the wireless power charger 402 can generate a notification to the user indicating that the device 404 is completely charged and thus can be removed from the charging port of the wireless power charger 402.

[00055 ] In another embodiment of the present invention, one or more mobile devices can be connected to the one or more ports of the wireless power charger simultaneously for charging. In an embodiment of the present invention, the wireless power charger can be connected to a power source using one of the ports, and one or more devices connected on the other ports. The wireless power charger can receive current from the power source along with current generated from the rectenna, and can use both the current generated from the rectenna and the current from the power source to charge the one or more devices connected for charging.

[00056] Figure 5 is a schematic diagram 500 illustrating a use case, according to an embodiment of the present invention. According to the diagram 500, the wireless power charger can be used as portable device that can be used as a keychain. The rectenna of the power charger acting as keychain can be constantly receiving RF signals from the air and generating current. When a device is connected to the port of the wireless power charger, the power charger identifies that the device is connected for charging, and therefore initiates charging the device using the generated current that is stored in the storage unit.

[00057] Figure 6 is a schematic diagram 600 illustrating charging of a wireless power charger using another wireless power charger, according to an embodiment of the present invention. According to the diagram 600, a first wireless power charger 602 is running out of current and thus in need of the current, wherein a second wireless power charger 604 can be full charged. The first wireless power charger 602 can be connected to the port of the second wireless power charger 604. Upon connecting the first wireless power charger 602 to the second wireless power charger 604, the first wireless power charger 602 can start receiving the current and store the received current in its storage unit.

[00058] In an embodiment of the present invention, two or more wireless power chargers can be connected simultaneously in series with another wireless power charger. In an embodiment of the present invention, a third power charger can be connected to the first wireless power charger, which is in turn connected to the second wireless power charger for receiving the current. In an embodiment of the present invention, any number of devices or wireless power chargers can be connected directly to the wireless power charger or to one another for charging, without departing from the scope of the invention.

[00059] Figure 7 is a schematic diagram 700 illustrating various exemplary use cases of the wireless power charger, according to an embodiment of the present invention. According to the diagram 700, various use cases are described where the wireless power charger 71 4 can be used. At 702, the wireless power charger 704 can be embedded in a t-shirt worn by a user. The rectenna of the wireless power charger 704 of the t-shirt can continuously receive the stray signals from the air and generate current and store it. Whenever the user wears the shirt moves out and if his mobile device needs charge, then the user can connect his mobile device to the wireless power charger 704 present in the t-shirt and get his mobile device charged. The embedded rectenna 71 4 is also used to power embedded sensors on the t-shirt or any other apparel clothing or wearable. Sweat, breathing, humidity and a host of other low powered sensors on the apparel can be powered directly by the unit. Alternatively, the sensors itself can have the unit embedded on them powering directly, or complementing, the internal battery.

[00060] Further, the diagram 700 comprises of a use case wherein the wireless power charger 71 4 can be present in the wristband or watch 704 of the user. In another use case, the wireless power charger 71 4 can be present in a Bluetooth device 706 used by the user. Further, in another use case, the wireless power charger 71 4 can be present in a headphone 708, a LED powered signal board 71 0, and a drone or a multi copter 71 2.

[00061 ] Figure 8 is a schematic diagram 800 illustrating various other exemplary use cases describing implementation of the wireless power charger 71 4, according to an embodiment of the present invention. According to the diagram 800, the wireless power charger 71 4 can be embedded in pole of the streetlights 802 and in various types of building lamps 804. The current generated from the wireless power charger 71 4 embedded in the street lights 802 and the building lamps 804 can be used for powering directly, or supplementing the current power of the street lamps and the building lamps itself. Herein above mentioned exemplary uses cases from both Figure 7 and Figure 8 illustrate that the wireless power charger 71 4 can be embedded or combined with other devices or units that user uses in his daily life, such that the wireless power charger can receive the RF signals and generate current from the received signals, such that the generated current can be used for using electrical as well as electronic devices and units.

[00062 ] According to another use case of the present invention, the wireless power charger 71 4 can be installed in the bus stands 806, wherein the wireless power charger 71 4 can be present in the bus stand structure. The wireless power charger 71 4 can be continuously generating current using rectenna that receives RF signals from the air and convert the received RF signals into current. The generated power can be stored in the storage unit or a storage unit present in the bus stand 806, and the current can be provided directly or supplement to the bus stand lights or information boards, wherein the bus stand lights or information boards can be operated using the current from the wireless power charger 71 4.

[00063 ] The herein above-mentioned use cases are merely exemplary uses cases for illustrating application of the wireless power charger in various domains and locations. The person having ordinarily skilled in the art can understand that the wireless power charger can be implemented in any other use cases, domains and locations, without departing from the scope of the invention. [00064] Figure 9 is a schematic flow diagram illustrating a method 900 of charging a wireless power charger, according to an embodiment of the present invention. The method describes how the wireless power charger can generate current. According to the method 900, at step 902, receiving, by one or more antennas that are part of a rectenna, one or more types of radio frequency (RF) waveforms. The one or more antennas can receive one or more of un-used, free, non- encrypted and lower bandwidth signals that of the types of, but not limited to, GSM, CDMA, AM, FM, 2.4GHz Wi-Fi, 5GHz Wi-Fi, Microwave, Milliwave, Bluetooth, Infrared and the like.

[00065 ] Further, at step 904, the method comprises of converting, by one or more rectifiers that are part of the rectenna, one or more types of RF waveforms received from the antenna into current. The received RF signals can be fed to the one or more rectifiers that can convert the RF signal into current of small power. In another embodiment of the present invention, the current generated from the rectifier can be amplified using the amplification circuit.

[00066] Further, at step 906, the method comprises the step of storing, by a storage module, generated current from the one or more types of RF waveforms received from the antenna. At step 908, the method further comprises the step of controlling, by one or more microcontrollers, the flow of current to the storage module. In an embodiment of the present invention, a safety compliance unit can also monitor the current generated, and can shut the wireless power charger if the generated current value is more than the threshold value set in the safety compliance unit.

[00067] Further, at step 91 0, the method further comprises the step of at least one of input and output, by one or more ports, of the current from the storage module. Further, at step 91 2, the method further comprises the step of displaying, by the display unit, information to a user of the wireless power charger.

[00068] The present embodiments have been described with reference to specific example embodiments; it will be evident that various modifications and changes may be made to these embodiments without departing from the broader spirit and scope of the various embodiments. Furthermore, the various devices, modules, and the like described herein may be enabled and operated using hardware circuitry, for example, complementary metal oxide semiconductor based logic circuitry, firmware, software and/or any combination of hardware, firmware, and/or software embodied in a machine readable medium.

[00069] Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims. It is also to be understood that the following claims are intended to cover all of the generic and specific features of the embodiments described herein and all the statements of the scope of the embodiments that as a matter of language might be said to fall there between.