Wireless charging of electronic devices

• US 8,193,764 B2
• Filed: 08/08/2007
• Issued: 06/05/2012
• Est. Priority Date: 08/08/2007
• Status: Active Grant

• Current Assignee: Power Forward, LLC
• Original Assignee: Jay Marketing Associates, Inc.
• Inventors: Jakubowski, Daniel Benjamin
• Primary Examiner(s): Muralidar, Richard V
• Application Number:
  US11/835,820
• Publication Number:
  US 20090039828A1
• Time in Patent Office: 1,763 Days
• Field of Search: 320/106, 320/108
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

Wireless chargers are provided. The wireless chargers can simultaneously receive and transmit power wirelessly. The wireless chargers can include a rechargeable battery so that the wireless charges can be used portably to charge electronic devices. The wireless chargers can also be programmable so that a user can select a power-transmitting protocol that is particularly suited for the electronic device being charged.

Claims

1. A portable wireless charger, comprising:

a portable housing containing;

a wireless power-receiving device comprising receive circuitry and a receive coil located in the housing;

a separate wireless power transmitting device comprising transmit circuitry and a transmit coil located in the housing;

a control logic comprising electronic hardware connecting said receive circuit with said transmit circuitry located in the housing for transmitting said power received by the wireless power-receiving device to the wireless power-transmitting device, said wireless charger thereby being capable of simultaneously receiving power wirelessly and transmitting said power wirelessly from said power-transmitting device outside of the portable wireless charger and wherein the control logic further functions to operate the wireless power-transmitting device to wirelessly transmit power in accordance with a selectable power-transmitting protocol.

2. The wireless charger of claim 1, additionally comprising:

a rechargeable battery located in the housing, wherein the control logic is capable of transferring power received by the wireless power-receiving device to the rechargeable battery, and wherein the control logic is capable of transferring power from the rechargeable battery to the wireless power-transmitting device.

3. The wireless charger of claim 1, comprising:

a wireless communications device capable of wirelessly receiving an identification of a selectable power-transmitting protocol.

4. The wireless charger of claim 1, comprising:

a plurality of selectable buttons, each of the plurality of buttons having a power-transmitting protocol associated with it, wherein the control logic is capable of detecting when one of the selectable buttons is selected, and wherein the control logic is capable of operating the wireless power-transmitting device in accordance with the power-transmitting protocol associated with the selected button.

5. The wireless charger of claim 4, comprising:

a wireless communications device capable of receiving identifications of power transmitting protocols, wherein the control logic is capable of associating each of the plurality of selectable buttons with a power-transmitting protocol corresponding to a received identification.

6. A charging system, comprising:

a first wireless charger capable of wirelessly transmitting power; and

a second portable wireless charger, the second wireless charger comprising;

a portable housing containing;

a wireless power-receiving device comprising receive circuitry and a receive coil, located in the housing, the wireless power-receiving device capable of wirelessly receiving power transmitted from the first wireless charger;

a separate wireless power-transmitting device comprising transmit circuitry and a transmit coil located in the housing said receiving and transmitting devices capable of wirelessly simultaneously receiving and transmitting power from said power transmitting device outside of said second portable wireless charger; and

a control logic comprising electronic hardware connecting said receive circuitry to said transmit circuitry located in the housing, thereby the control logic transmits said power received by the wireless power-receiving device to the wireless power transmitting device and outside the second portable wireless charger;

wherein the control logic further functions to operate the wireless power-transmitting device to wirelessly transmit power in accordance with a selectable power-transmitting protocol.

7. The charging system of claim 6, wherein the second wireless charger additionally comprises:

a rechargeable battery located in the housing, wherein the control logic is capable of transferring power received by the wireless power-receiving device to the rechargeable battery, and wherein the control logic is capable of transferring power from the rechargeable battery to the wireless power-transmitting device.

8. The charging system of claim 6, wherein the first wireless charger includes a first wireless communications device, wherein the second wireless charger includes a second wireless communications device, and wherein the second wireless charger is capable of transmitting, via the second communications device, to stop the first wireless charger from wirelessly transmitting power.

9. The wireless charger of claim 8, wherein the second wireless charger comprises:

a wireless communications device capable of wirelessly receiving an identification of selectable power-transmitting protocol.

10. The wireless charger of claim 8, wherein the second wireless charger comprises:

a plurality of selectable buttons, each of the plurality of buttons having a power-transmitting protocol associated with it, wherein the control logic is capable of detecting when one of the selectable buttons is selected, and wherein the control logic is capable of operating the wireless power-transmitting device in accordance with the power-transmitting protocol associated with the selected button.

11. The wireless charger of claim 10, wherein the second wireless charger comprises:

a wireless communications device capable of receiving identifications of power-transmitting protocols, wherein the control logic is capable of associating each of the plurality of selectable buttons with a power-transmitting protocol corresponding to a received identification.

12. The wireless charger of claim 11, wherein the first wireless charger comprises:

a wireless communications device, wherein the first wireless charger is capable of wirelessly transmitting, via the wireless communications device, identifications of power transmitting protocols.

13. A portable wireless charger, said charger comprising:

a portable housing containing;

a wireless power-receiving device comprising receive circuitry and a receive coil located in said housing; and

a separate wireless power-transmitting device comprising transmit circuitry and a transmit coil located in said housing; and

a control logic comprising electronic hardware connecting said receive circuitry with said transmit circuitry, located in said housing, for simultaneously transmitting said power from said receiving device to said transmitting device for simultaneous transmission from the portable wireless charger to wirelessly charge a secondary battery in an electronic device to be charged.

14. The wireless charger of claim 13, farther comprising selectable power transmitting protocol and rechargeable battery, wherein said selectable power-transmitting protocol is selected by the electronic device to be charged.

15. The wireless charger of claim 13, further comprising selectable power-transmitting protocol and rechargeable battery, wherein said selectable power-transmitting protocol is selected by user of said charger.

16. The wireless charger of claim 13, wherein said power-receiving device is adapted to receive alternating current or direct current.

17. The power-receiving device of claim 13, wherein said device converts received alternating current to direct current and transmits said direct current to transmit circuitry using the control logic comprising electronic hardware connected to said receive circuitry and said transmit circuitry.

18. The power-receiving device of claim 13, wherein said device converts received alternating current to direct current and transmits said direct current to rechargeable battery located in the housing, wherein the control logic transmits power received by said power-receiving device to said battery, and wherein said control logic comprising electronic hardware connected to said receive circuitry and said transmit circuitry, transmits said power from said battery to said power-transmitting device.