Electronic device with battery having conductive coil for receiving external power and inducing power via a movable member of the device

1. An electronic device comprising:

a housing having a first surface and a second surface;

a display exposed through the first surface of the housing;

a conductive coil disposed inside the housing and forming a portion of the second surface of the housing;

a movable member operatively connected to at least a portion of the housing and including one or more magnets that generate a magnetic field that passes through the conductive coil;

a first charging circuit electrically connected to the conductive coil for wirelessly receiving power from an external device using the conductive coil and supplying the received power to a battery of the electronic device; and

a second charging circuit electrically connected to the conductive coil for supplying, to the battery of the electronic device, power that is induced in the conductive coil based on movement of the movable member.

2. The electronic device according to claim 1 , wherein the movable member is rotatable about the housing.

3. The electronic device according to claim 1 , wherein the movable member is disposed between the display and the second surface.

4. The electronic device according to claim 1 , wherein the movable member surrounds at least a portion of the display.

5. The electronic device according to claim 1 , further comprising a control circuit that is configured to electrically connect one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit.

6. The electronic device according to claim 5 , wherein the control circuit is configured to electrically connect one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit based on whether a user is in proximity to the electronic device.

7. The electronic device according to claim 6 , further comprising a sensor that is configured to generate a signal indicating whether the user is in proximity to the electronic device.

8. The electronic device according to claim 5 , wherein the control circuit is configured to electrically connect one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit based on whether an external wireless charging device is in proximity to the electronic device.

9. The electronic device according to claim 5 , further comprising a user interface, wherein the control circuit is configured to electrically connect one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit based on a user input that is received through the user interface.

10. The electronic device according to claim 5 , further comprising a communication circuit that is configured to support at least one type of communication protocol, wherein the control circuit is configured to disconnect an electrical connection between the conductive coil and the communication circuit and to electrically connect one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit when the communication supported by the conductive coil is set to be in the disabled state.

11. The electronic device according to claim 10 , wherein the communication circuit comprises one of a short-range communication circuit and a magnetic signal-based communication circuit.

12. The electronic device according to claim 10 , wherein the conductive coil comprises a near field communication (NFC) antenna.

13. The electronic device according to claim 1 , further comprising a fastener that is attachable to the housing and detachable with respect to a user's body part.

14. A method for operating an electronic device, the method comprising:

obtaining state information of the electronic device including at least one conductive coil, a first charging circuit electrically connected to the conductive coil for wirelessly receiving power from an external device using the conductive coil and supplying the received power to a battery of the electronic device; and, a second charging circuit electrically connected to the conductive coil for supplying, to the battery of the electronic device, power that is induced in the conductive coil based on movement of a movable member of the electronic device; and

electrically connecting one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit based on the obtained state information.

15. The method according to claim 14 , wherein electrically connecting one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit comprises determining whether a user is in proximity to the electronic device.

16. The method according to claim 14 , wherein electrically connecting one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit comprises determining whether an external wireless charging device is in proximity to the electronic device.

17. The method according to claim 14 , wherein electrically connecting one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit comprises receiving a user input.

18. The method according to claim 14 , wherein electrically connecting one of the conductive coil to the first charging circuit and the conductive coil to the second charging circuit comprises identifying if a communication supported by the conductive coil is set to be in the disabled state.

19. The method according to claim 18 , wherein the communication supported by the conductive coil comprises one of a short-range communication and a magnetic signal-based communication.

20. The method according to claim 19 , wherein the conductive coil comprises a near field communication (NFC) antenna.