INCREASED RECEIVED POWER THROUGHPUT IN LARGE SURFACE AREA RECEIVERS

1 . A chargeable device, comprising:

a plurality of receiving coils provided on a surface of the chargeable device; and

a power transfer circuit configured in a first mode to:

obtain a combined current by combining currents induced in the plurality of receiving coils;

rectify the combined current to obtain a battery charging current; and

provide the battery charging current to a battery coupled to the chargeable device.

2 . The chargeable device of claim 1 , wherein the currents are induced through electromagnetic coupling by transmitting coils in a charging surface of a wireless charging device.

3 . The chargeable device of claim 1 , wherein the power transfer circuit is configured in a second mode to:

receive a current induced in one of the plurality of receiving coils;

rectify the induced current to obtain the battery charging current; and

provide the battery charging current to the battery coupled to the chargeable device.

4 . The chargeable device of claim 3 , wherein the current is induced through electromagnetic coupling by one or more transmitting coils in a charging surface of a wireless charging device.

5 . The chargeable device of claim 4 , wherein the wireless charging device is compliant with a standards-defined protocol.

6 . The chargeable device of claim 1 , wherein the currents induced in the plurality of receiving coils are synchronized and have the same phase.

7 . A method for receiving power from a wireless charging device, comprising:

obtaining a combined current by combining currents induced in a plurality of receiving coils provided on a surface of a chargeable device in a first mode of operation;

rectifying the combined current to obtain a battery charging current; and

providing the battery charging current to a battery coupled to the chargeable device.

8 . The method of claim 7 , wherein the currents are induced through electromagnetic coupling by transmitting coils in a charging surface of the wireless charging device.

9 . The method of claim 7 , further comprising:

receiving a current induced in one receiving coil of the plurality of receiving coils in a second mode of operation;

rectifying the current to obtain the battery charging current; and

providing the battery charging current to the battery coupled to the chargeable device.

10 . The method of claim 9 , wherein the current is induced through electromagnetic coupling by one or more transmitting coils in a charging surface of the wireless charging device.

11 . The method of claim 10 , wherein the wireless charging device is compliant with a standards-defined protocol.

12 . The method of claim 7 , wherein the currents induced in the plurality of receiving coils are synchronized and have the same phase.

13 . A processor readable storage medium, comprising code for:

obtaining a combined current by combining currents induced in a plurality of receiving coils provided on a surface of a chargeable device in a first mode of operation;

rectifying the combined current to obtain a battery charging current; and

providing the battery charging current to a battery coupled to the chargeable device.

14 . The storage medium of claim 13 , wherein the currents are induced through electromagnetic coupling by transmitting coils in a charging surface of a wireless charging device.

15 . The storage medium of claim 13 or claim 111 , further comprising code for:

receiving a current induced in one receiving coil of the plurality of receiving coils in a second mode of operation;

rectifying the current to obtain the battery charging current; and

providing the battery charging current to the battery coupled to the chargeable device.

16 . The storage medium of claim 15 , wherein the current is induced through electromagnetic coupling by one or more transmitting coils in a charging surface of a wireless charging device.

17 . The storage medium of claim 16 , wherein the wireless charging device is compliant with a standards-defined protocol.

18 . The storage medium of any of claims 13 17 claim 13 , wherein the currents induced in the plurality of receiving coils are synchronized and have the same phase.