WO2015029078A2 - Portable charger and a method of powering electronic devices - Google Patents

Portable charger and a method of powering electronic devices Download PDF

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Publication number
WO2015029078A2
WO2015029078A2 PCT/IN2014/000576 IN2014000576W WO2015029078A2 WO 2015029078 A2 WO2015029078 A2 WO 2015029078A2 IN 2014000576 W IN2014000576 W IN 2014000576W WO 2015029078 A2 WO2015029078 A2 WO 2015029078A2
Authority
WO
WIPO (PCT)
Prior art keywords
portable charger
antenna
electronic devices
voltage
charger
Prior art date
Application number
PCT/IN2014/000576
Other languages
French (fr)
Other versions
WO2015029078A3 (en
Inventor
Swapnil Chordia
Original Assignee
Swapnil Chordia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swapnil Chordia filed Critical Swapnil Chordia
Publication of WO2015029078A2 publication Critical patent/WO2015029078A2/en
Publication of WO2015029078A3 publication Critical patent/WO2015029078A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/001—Energy harvesting or scavenging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

Definitions

  • the invention relates to a portable battery charger and more particularly to a portable battery charger utilizing ambient energy source for charging electronic devices. ⁇
  • FIG. 1 Another type of portable charger is a solar powered charger. Since these chargers are dependent on solar energy they cannot be charged at night. Even once the sun starts to go down, the power supplied will start to plummet. Also during winter months when there are less sunlight hours and sun radiation is less intense, the charger cannot be used.
  • the present invention provides a portable charger comprising at least one antenna for receiving a radio frequency, a rectifier for converting the received radio frequency into DC voltage, and an output unit for outputting the DC voltage to power electronic devices wherein a battery unit harvests the DC voltage converted by the rectifier to power electronic devices.
  • the present invention provides a method of powering electronic devices by a portable charger, the method comprising the steps of receiving ambient RF energy through RF signal; converting the RF energy into DC voltage by a rectifier and storing DC voltage in a battery wherein the DC voltage is used for powering electronic devices.
  • the portable charger of the present invention by converting the RF energy into DC voltage absorbs RF energy from the surrounding, thereby mitigating risks of excess RF energy in the surroundings.
  • the present invention absorbs excess radiation in areas close to the cell towers, and hence is beneficial for the human body, in view of high spread of cancer and other diseases due to excess radiation.
  • the present invention provides a portable battery charger which harvests RF energy for powering a wide array of electronic devices and absorbs excess radiation or RF energy from cell towers.
  • FIG. 1 is a block diagram of a portable charger in accordance with one embodiment of the present invention.
  • FIG. 2 shows a flowchart for a method of powering electronic devices by the portable charger in accordance with one embodiment of the present invention
  • the present invention provides a self charging portable charger utilizing ambient energy source like radio frequency (RF) energy for powering electronic devices.
  • RF radio frequency
  • the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from FM towers.
  • RF radio frequency
  • the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from cell towers.
  • RF radio frequency
  • the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from cell-phones when they are in call mode or are being used for calling.
  • RF radio frequency
  • the portable charger comprises at-least one antenna for receiving a radio frequency, a rectifier for converting the received radio frequency into DC voltage, and an output unit for outputting the DC voltage to power electronic devices.
  • the portable charger comprises a battery unit for harvesting the DC voltage converted by the rectifier. Accordingly, the harvested DC voltage can be used to power electronic devices.
  • Fig. 1 shows a portable charger 100 in accordance with an embodiment of the invention.
  • the portable charger 100 comprises at-least one antenna 110, a rectifier 120, a battery unit 130 and an output unit 140.
  • the antenna 0 receives radio frequency transmitted by the communication towers.
  • the antenna 110 will be configured to receive radio frequency from FM towers in the range of 88 Mhz to 108 Mhz.
  • the antenna 110 is configured to receive radio frequencies in the range of 800 mhz to 4Ghz. Accordingly the antenna 110 can be selected based upon the radio frequency the portable charger 100 is configured to receive.
  • the antenna 110 can be selected from a group comprising of micro-strip antenna, square micro-strip antenna, broadband microstrip antenna, whip antenna, folded dipole or T-shaped antenna, vertical omni-directional FM antenna, etc.
  • the present invention shall not be limited to the number and type of the antennas used.
  • the portable charger 100 comprises of a plurality of antennas, each antenna can be configured to receive RF of a different frequency range. Accordingly the portable charger 100 can be configured to receive frequency in a particular range depending upon the available radio frequencies.
  • the portable charger 100 further comprises a matching circuit 150 connected with the antenna 110 as shown in Fig. 1.
  • the matching circuit 150 tunes the antenna 110 to operate in a desired frequency range.
  • the matching circuit 150 ensures that the antenna 110 receives maximum radio frequency that is available without affecting transmission and reception in a communication network.
  • the radio frequency received by the antenna 110 is then converted into DC voltage by the rectifier 120.
  • the rectifier 120 includes a voltage double for doubling the DC voltage converted by the rectifier 120.
  • the rectifier 120 provides higher DC voltage for the amount of radio frequency received by the antenna 110.
  • the DC voltage converted by the rectifier 120 is fed to the battery unit 130 or the output unit 140.
  • the battery unit 130 includes a charging circuit and a set of rechargeable batteries.
  • the charging circuit charges the rechargeable battery with the DC voltage fed by the rectifier 120.
  • the output unit 140 as shown in the Fig. 1 is connected to the battery unit 130. Alternately, the output unit 140 can be configured to receive the DC voltage from the rectifier 120. Accordingly, the output unit 140 is configured to be adapted to electronic devices for powering or charging electronic devices such as mobile phones, laptops, PDAs, tablets, etc.
  • the portable charger 100 self charges itself on availability of radio frequency.
  • the radio frequency received is converted by the rectifier 120 into DC voltage, and the DC voltage charge is stored in the battery for powering external devices or the DC voltage is utilized directly for powering external devices as per requirement.
  • the portable charger 100 is operated in two modes - a first mode and a second mode.
  • the portable charger 100 is configured to charge the battery using ambient RF energy.
  • the portable charger 100 when in first mode will charge the battery as soon as RF energy is available.
  • the portable charger 100 is configured to provide charge to external devices.
  • the portable charger 100 of the present invention can be used to charge devices while the portable charger 100 is receiving RF energy or charging itself.
  • the portable charger 100 comprises a means for indicating status of the portable charger 100.
  • status of the battery level in the charger and status of the operating mode of the charger is indicated.
  • Means for indicating can be a light emitting diode, a LCD display, etc.
  • the present invention provides a method 200 for utilizing RF energy for powering electronic devices as shown in flow chart in Fig. 2.
  • the method comprising the steps of receiving ambient RF energy 210, converting the RF energy into DC voltage 220, storing the DC voltage 230, wherein the DC voltage is used for powering electronic devices.
  • the method includes the step of storing DC voltage, the stored DC voltage can be used for powering electronic devices.

Abstract

The present invention provides a portable charger and a method of powering electronic devices by the portable charger. The portable charger includes at least one antenna for receiving a radio frequency signal, a rectifier for converting the received radio frequency signal into DC voltage, and an output unit for outputting the DC voltage to power electronic devices. The method of the invention includes the step of storing DC voltage in a battery for powering electronic devices.

Description

TITLE
PORTABLE CHARGER AND A METHOD OF POWERING ELECTRONIC DEVICES.
FIELD OF THE INVENTION
[001] The invention relates to a portable battery charger and more particularly to a portable battery charger utilizing ambient energy source for charging electronic devices. ~
BACKGROUND OF THE INVENTION
[002] Today most electronic devices are powered with rechargeable batteries which can be charged through an AC or a DC power source. However, the availability of power sources during transit or in emergencies is limited.
[003] With increase in use of these devices, there remains a continuous demand for increase in battery life of electronic devices. Accordingly numerous attempts have been made to improve capacity of these batteries. However, still these batteries need to be charged once the battery level goes down, and the availability of power sources still remains a limitation. To overcome this limitation portable chargers incorporating batteries have been developed to recharge batteries of portable devices during transit.
[004] One type of portable charger that is available is dependent on AC or DC power source to charge the battery of the portable charger. Hence these chargers suffer from the same deficiency of being limited to AC or DC power sources.
l [005] Another type of portable charger is a solar powered charger. Since these chargers are dependent on solar energy they cannot be charged at night. Even once the sun starts to go down, the power supplied will start to plummet. Also during winter months when there are less sunlight hours and sun radiation is less intense, the charger cannot be used.
[006] Beyond these disadvantages, solar power chargers when used to power portable devices take a while to restore the majority of a battery in the portable device, and since the solar power chargers only work during the day, this will involve having to stop, set up the system and then wait for the solar power charger to charge, which may not be ideal.
[007] In view of the above, there is a need for a portable charger addressing at- least one of the above mentioned problems.
SUMMARY OF THE INVENTION
[008] Accordingly the present invention provides a portable charger comprising at least one antenna for receiving a radio frequency, a rectifier for converting the received radio frequency into DC voltage, and an output unit for outputting the DC voltage to power electronic devices wherein a battery unit harvests the DC voltage converted by the rectifier to power electronic devices.
[009] In one embodiment the present invention provides a method of powering electronic devices by a portable charger, the method comprising the steps of receiving ambient RF energy through RF signal; converting the RF energy into DC voltage by a rectifier and storing DC voltage in a battery wherein the DC voltage is used for powering electronic devices.
[010] In an advantageous aspect, the portable charger of the present invention by converting the RF energy into DC voltage absorbs RF energy from the surrounding, thereby mitigating risks of excess RF energy in the surroundings. In this regard, the present invention absorbs excess radiation in areas close to the cell towers, and hence is beneficial for the human body, in view of high spread of cancer and other diseases due to excess radiation.
[011] Further, the present invention provides a portable battery charger which harvests RF energy for powering a wide array of electronic devices and absorbs excess radiation or RF energy from cell towers.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference will be made to embodiments of the invention, examples of which may be illustrated in the accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in the context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
FIG. 1 is a block diagram of a portable charger in accordance with one embodiment of the present invention. FIG. 2 shows a flowchart for a method of powering electronic devices by the portable charger in accordance with one embodiment of the present invention
DESCRIPTION OF THE INVENTION
[012] Accordingly, the present invention provides a self charging portable charger utilizing ambient energy source like radio frequency (RF) energy for powering electronic devices. ^
[013] In one aspect, the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from FM towers.
[014] In another aspect, the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from cell towers.
[015] In another aspect, the present invention provides a portable charger utilizing radio frequency (RF) energy transmitted from cell-phones when they are in call mode or are being used for calling.
[016] According to the present invention, the portable charger comprises at-least one antenna for receiving a radio frequency, a rectifier for converting the received radio frequency into DC voltage, and an output unit for outputting the DC voltage to power electronic devices. According to the present invention, the portable charger comprises a battery unit for harvesting the DC voltage converted by the rectifier. Accordingly, the harvested DC voltage can be used to power electronic devices. [017] Fig. 1 shows a portable charger 100 in accordance with an embodiment of the invention. The portable charger 100 comprises at-least one antenna 110, a rectifier 120, a battery unit 130 and an output unit 140.
[0 8] According to the present invention, the antenna 0 receives radio frequency transmitted by the communication towers. In an embodiment of the invention, the antenna 110 will be configured to receive radio frequency from FM towers in the range of 88 Mhz to 108 Mhz. In another embodiment of the invention, the antenna 110 is configured to receive radio frequencies in the range of 800 mhz to 4Ghz. Accordingly the antenna 110 can be selected based upon the radio frequency the portable charger 100 is configured to receive. The antenna 110 can be selected from a group comprising of micro-strip antenna, square micro-strip antenna, broadband microstrip antenna, whip antenna, folded dipole or T-shaped antenna, vertical omni-directional FM antenna, etc. The present invention shall not be limited to the number and type of the antennas used.
[019] In an embodiment, the portable charger 100 comprises of a plurality of antennas, each antenna can be configured to receive RF of a different frequency range. Accordingly the portable charger 100 can be configured to receive frequency in a particular range depending upon the available radio frequencies.
[020] The portable charger 100 further comprises a matching circuit 150 connected with the antenna 110 as shown in Fig. 1. The matching circuit 150 tunes the antenna 110 to operate in a desired frequency range. In this regard, the matching circuit 150 ensures that the antenna 110 receives maximum radio frequency that is available without affecting transmission and reception in a communication network.
[021] The radio frequency received by the antenna 110 is then converted into DC voltage by the rectifier 120. The rectifier 120 includes a voltage double for doubling the DC voltage converted by the rectifier 120. Advantageously, the rectifier 120 provides higher DC voltage for the amount of radio frequency received by the antenna 110. The DC voltage converted by the rectifier 120 is fed to the battery unit 130 or the output unit 140.
[022] The battery unit 130 includes a charging circuit and a set of rechargeable batteries. The charging circuit charges the rechargeable battery with the DC voltage fed by the rectifier 120.
[023] The output unit 140 as shown in the Fig. 1 is connected to the battery unit 130. Alternately, the output unit 140 can be configured to receive the DC voltage from the rectifier 120. Accordingly, the output unit 140 is configured to be adapted to electronic devices for powering or charging electronic devices such as mobile phones, laptops, PDAs, tablets, etc.
[024] According to the present invention, the portable charger 100 self charges itself on availability of radio frequency. In this regard, when the antennas receive radio frequency, the radio frequency received is converted by the rectifier 120 into DC voltage, and the DC voltage charge is stored in the battery for powering external devices or the DC voltage is utilized directly for powering external devices as per requirement. According to the present invention, the portable charger 100 is operated in two modes - a first mode and a second mode. In the first mode, the portable charger 100 is configured to charge the battery using ambient RF energy. Accordingly, the portable charger 100 when in first mode will charge the battery as soon as RF energy is available. In the second mode the portable charger 100 is configured to provide charge to external devices. In a relative aspect, the portable charger 100 of the present invention can be used to charge devices while the portable charger 100 is receiving RF energy or charging itself.
[025] Furthermore, the portable charger 100 comprises a means for indicating status of the portable charger 100. According to the present invention, status of the battery level in the charger and status of the operating mode of the charger is indicated. Means for indicating can be a light emitting diode, a LCD display, etc.
[026] In an embodiment, the present invention provides a method 200 for utilizing RF energy for powering electronic devices as shown in flow chart in Fig. 2. The method comprising the steps of receiving ambient RF energy 210, converting the RF energy into DC voltage 220, storing the DC voltage 230, wherein the DC voltage is used for powering electronic devices. The method includes the step of storing DC voltage, the stored DC voltage can be used for powering electronic devices.
[027] The foregoing description of the invention has been set merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the substance of the invention may occur to person skilled in the art, the invention should be construed to include everything within the scope of the disclosure.

Claims

A portable charger comprising:
at least one antenna for receiving a radio frequency,
a rectifier for converting the received radio frequency into DC voltage, and an output unit for outputting the DC voltage to power electronic devices wherein a battery unit harvests the DC voltage converted by the rectifier to power electronic devices.
The portable charger as claimed in claim 1 wherein the antenna receives radio frequency transmitted by communication towers.
The portable charger as claimed in claim 2 wherein the antenna is configured to receive radio frequency from FM towers in the range of 88 Mhz to 108 Mhz.
The portable charger as claimed in claim 2 wherein the antenna is configured to receive radio frequencies in the range of 800mhz to 4Ghz.
The portable charger as claimed in claim 2 wherein the antenna is selected from a group comprising of microstrip antenna, square microstrip antenna, broadband microstrip antenna, whip antenna, folded dipole or T-shaped antenna, vertical omni-directional FM antenna, etc.
6. The portable charger as claimed in claim 1, further comprising a matching circuit for tuning the antenna to operate in a desired frequency range by
s ensuring that the antenna receives maximum radio frequency that is available without affecting transmission and reception in a communication network.
7. The portable charger as claimed in claim 1 wherein the battery unit includes a charging circuit that charges a set of rechargeable batteries with the DC voltage fed by the rectifier.
8. The portable charger as claimed in claim 1 wherein the output unit is configured to be adapted to electronic devices for powering or charging electronic devices such as mobile phones, laptops, PDAs, tablets, etc.
9. The portable charger as claimed in claim 1 wherein the portable charger comprises a means for indicating status of the portable charger wherein the status is the status of the battery level in the charger and status of the operating mode of the charger.
10. The portable charger as claimed in claim 9 wherein the means for indicating is a light emitting diode, a LCD display, etc.
11. A method of powering electronic devices by a portable charger, the method comprising the steps of:
receiving ambient RF energy through RF signal;
converting the RF energy into DC voltage by a rectifier; and storing DC voltage in a battery wherein the DC voltage is used for powering electronic devices.
12. The method of powering electronic devices as claimed in claim 11 further comprising the step of operating the portable charger in a first mode and/or a second mode.. ■ .
13. The method of powering electronic devices as claimed in claim 12 wherein in the first mode the portable charger is configured to charge the battery using ambient RF energy as soon as the RF energy is available.
14. The method as of powering electronic devices as claimed in claim 12 wherein in the second mode the portable charger is configured to provide charge to external devices.
15. The method of powering electronic devices as claimed in claim 11 wherein the portable charger is configured to charge external devices even while the portable charger is receiving RF energy or charging itself.
PCT/IN2014/000576 2013-09-02 2014-09-03 Portable charger and a method of powering electronic devices WO2015029078A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2860/MUM/2013 2013-09-02
IN2860MU2013 IN2013MU02860A (en) 2013-09-02 2013-09-02

Publications (2)

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WO2015029078A2 true WO2015029078A2 (en) 2015-03-05
WO2015029078A3 WO2015029078A3 (en) 2015-07-02

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PCT/IN2014/000576 WO2015029078A2 (en) 2013-09-02 2014-09-03 Portable charger and a method of powering electronic devices

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WO (1) WO2015029078A2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100700944B1 (en) * 2005-01-19 2007-03-28 삼성전자주식회사 Apparatus and method for charging rf derelict power in portable terminal

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IN2013MU02860A (en) 2015-07-03
WO2015029078A3 (en) 2015-07-02

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