Wireless battery charger via carrier frequency signal

• US 20050194926A1
• Filed: 03/02/2004
• Published: 09/08/2005
• Est. Priority Date: 03/02/2004
• Status: Active Grant

• Current Assignee: Michael Vincent Di Stefano
• Original Assignee: Michael Vincent Di Stefano
• Inventors: Di Stefano, Michael Vincent
• Granted Patent: US 7,288,918 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/001 Energy harvesting or scavenging
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence

Abstract

Apparatus and methods to wirelessly charge batteries within a radius of a power source. A power transmitter generates a power signal of specific configuration which is received by the power charger. The power charger harvests the received power signal and stores the energy contained within for the purpose of charging target battery or batteries. The typical uses of this invention are but not limited to the home, car, office, and work place. Anywhere where rechargeable batteries are used in a device where they need to be placed or physically removed from the device for recharge by conventional wired chargers, this invention provides method to prolong battery life in such a way to extend the time between a physical wired recharge or eliminate such events all together.

Claims

1. A wireless battery charger via carrier frequency signal for devices with batteries where it is not convenient to run electrical wires or place the device in a charger for charging batteries and for portable devices that can benefit from either partial or full battery recharge without connecting to a hard wired charger comprising:

means for generating and transmitting a signal of a predetermined power and carrier frequency;

means for receiving the transmitted power signal;

means for storing energy to the batteries; and

means for transferring power from the power transmitter to the power charger.

2. The wireless battery charger via carrier frequency signal in accordance with claim 1, wherein said means for generating and transmitting a signal of a predetermined power and carrier frequency;

comprises a carrier frequency power transmitter circuit.

3. The wireless battery charger via carrier frequency signal in accordance with claim 1, wherein said means for receiving the transmitted power signal;

comprises a power receiving circuit.

4. The wireless battery charger via carrier frequency signal in accordance with claim 1, wherein said means for storing energy to the batteries comprises a plurality of batteries battery charging circuit.

5. The wireless battery charger via carrier frequency signal in accordance with claim 1, wherein said means for transferring power from the power transmitter to the power charger comprises a power signal.

6. A wireless battery charger via carrier frequency signal for devices with batteries where it is not convenient to run electrical wires or place the device in a charger for charging batteries and for portable devices that can benefit from either partial or full battery recharge without connecting to a hard wired charger comprising:

a carrier frequency power transmitter circuit, for generating and transmitting a signal of a predetermined power and carrier frequency;

a power receiving circuit, for receiving the transmitted power signal;

a plurality of batteries battery charging circuit, for storing energy to the batteries; and

a power signal, for transferring power from the power transmitter to the power charger.

7. The wireless battery charger via carrier frequency signal as recited in claim 6, further comprising:

an energy storing circuit, for storing the energy received from the power receiving circuit until sufficient energy is stored so to be transferred to the power charging circuit, electrically connected to said Power Receiving Circuit, and electrically connected to said Battery Charging Circuit.

8. The wireless battery charger via carrier frequency signal as recited in claim 6, further comprising:

a battery status indication, for indicating the battery charge state.

9. The wireless battery charger via carrier frequency signal as recited in claim 7, further comprising:

a battery status indication, for indicating the battery charge state.

10. The wireless battery charger via carrier frequency signal as recited in claim 6, wherein said power transmitter circuit has characteristics selected from the following group:

frequency modulation, phase modulation, and amplitude modulation.

11. The wireless battery charger via carrier frequency signal as recited in claim 6, wherein said power receiving circuit has characteristics selected from the following group:

antenna, band pass circuit, and filtering circuit.

12. The wireless battery charger via carrier frequency signal as recited in claim 7, wherein said power transmitter circuit has characteristics selected from the following group:

frequency modulation, phase modulation, and amplitude modulation.

13. The wireless battery charger via carrier frequency signal as recited in claim 7, wherein said power receiving circuit has characteristics selected from the following group:

antenna, band pass circuit, and filtering circuit.

14. The wireless battery charger via carrier frequency signal as recited in claim 8, wherein said power transmitter circuit has characteristics selected from the following group:

frequency modulation, phase modulation, and amplitude modulation.

15. The wireless battery charger via carrier frequency signal as recited in claim 8, wherein said power receiving circuit has characteristics selected from the following group:

antenna, band pass circuit, and filtering circuit.

16. The wireless battery charger via carrier frequency signal as recited in claim 9, wherein said power transmitter circuit has characteristics selected from the following group:

frequency modulation, phase modulation, and amplitude modulation.

17. The wireless battery charger via carrier frequency signal as recited in claim 9, wherein said power receiving circuit has characteristics selected from the following group:

antenna, band pass circuit, and filtering circuit.

18. A wireless battery charger via carrier frequency signal for devices with batteries where it is not convenient to run electrical wires or place the device in a charger for charging batteries and for portable devices that can benefit from either partial or full battery recharge without connecting to a hard wired charger comprising:

a carrier frequency, frequency modulation, phase modulation, amplitude modulation power transmitter circuit, for generating and transmitting a signal of a predetermined power and carrier frequency;

an antenna, band pass circuit, filtering circuit power receiving circuit, for receiving the transmitted power signal;

an energy storing circuit, for storing the energy received from the power receiving circuit until sufficient energy is stored so to be transferred to the power charging circuit, electrically connected to said Power Receiving Circuit;

a plurality of batteries battery charging circuit, for storing energy to the batteries, electrically connected to said Energy Storing Circuit;

a battery status indication, for indicating the battery charge state; and

a power signal, for transferring power from the power transmitter to the power charger.