Method of transmitting and receiving power and electronic device using the same

• US 10,536,010 B2
• Filed: 10/05/2018
• Issued: 01/14/2020
• Est. Priority Date: 07/06/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Lim, Kyungwoo, Kim, Kihyun, Park, Seho, Park, Hyunsup, Lee, Wooram
• Primary Examiner(s): Williams, Arun C
• Application Number:
  US16/152,856
• Publication Number:
  US 20190052100A1
• Time in Patent Office: 466 Days
• Field of Search: 320108
• CPC Class Codes: H02J 3/007 Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing uninterruptable power supply H02J9/00
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0024 Parallel/serial switching of connection of batteries to charge or load circuit
• CPC Class Codes: H02J 7/00302 Overcharge protection

Abstract

An electronic device comprising: a battery having a plurality of cells that are connected in series; a circuit electrically connected to the battery; and a conductive pattern electrically connected to the circuit, wherein the circuit is configured to: receive a first signal wirelessly from a first external device by using the conductive pattern, charge at least some of the plurality of cells in the battery by using a power of the first signal, generate a second signal by changing a first voltage, that is produced by at least two of the plurality of cells in the battery, into a second voltage that is lower than the first voltage, and wirelessly transmit the second signal to a second external device, the second signal being transmitted by using the conductive pattern.

Claims

1. An electronic device comprising:

a housing;

a battery mounted in the housing;

a wireless power transmission module comprising a transmission coil;

a wired power transmission interface; and

a circuit electrically connected to the battery, the wireless power transmission module, and the wired power transmission interface, wherein the circuit is configured to;

divide into power of the battery into a first power and a second power; and

provide the first power through the wireless power transmission module to a first external device while providing the second power through the wired power transmission interface to a second external device.

2. The electronic device of claim 1, wherein the circuit is further configured to:

divide the power of the battery into the first power and the second power based on at least one of a first charging parameter of the first external device and a second charging parameter the second external device.

3. The electronic device of claim 1, wherein the circuit is further configured to:

compare the second power with a reference power; and

when the second power is smaller than or equal to the reference power, cut off the second power while providing the first power through the wireless power transmission module to the first external device.

4. The electronic device of claim 1, wherein the circuit further comprises a first switch disposed at a first path between the battery and the wired power transmission interface, and

wherein the first switch is activated in order to provide the second power through the wired power transmission interface to the second external device.

5. The electronic device of claim 4, wherein the circuit further comprises a voltage regulation module disposed between the first switch and the battery, and

wherein the voltage regulation module is configured to convert a first voltage from the battery to a second voltage that is lower than the first voltage.

6. The electronic device of claim 1, wherein the circuit further comprises a second switch disposed at a second path between the battery and the wireless power transmission module, and

wherein second switch is activated in order to provide the first power through the wireless power transmission module to the first external device.

7. The electronic device of claim 1, further comprising:

a wired power reception interface,

wherein the circuit further comprises a third switch electrically connected to the wired power reception interface, and

wherein the third switch is deactivated in order to prevent a third power being received from wired power reception interface.

8. The electronic device of claim 7,

wherein the circuit further comprises a fourth switch electrically connected to the wired power transmission interface, and

wherein the fourth switch is deactivated in order to prevent the second power from being provided to a battery charging path between the wired power reception interface and the battery.

9. The electronic device of claim 7,

wherein the circuit further comprises a fifth switch electrically connected to the wireless power transmission module, and

wherein the fifth switch is deactivated in order to prevent the first power from being provided to the wired power reception interface.

10. The electronic device of claim 1, further comprising:

a wireless power reception module,

wherein the circuit further comprises a six switch electrically connected to the wireless power reception module, and

wherein the six switch is deactivated in order to prevent the first power and the second power from being provided to a wireless power reception module.

11. A method for operation an electronic device, the method comprising:

dividing into power of a battery into a first power and a second power; and

providing the first power through a wireless power transmission module to a first external device while providing the second power through a wired power transmission interface to a second external device.

12. The method of claim 11, wherein dividing into power of a battery comprises dividing the power of the battery into the first power and the second power based on at least one of a first charging parameter of the first external device and a second charging parameter the second external device.

13. The method of claim 11, further comprising:

comparing the second power with a reference power; and

when the second power is smaller than or equal to the reference power, preventing the second power while providing the first power through the wireless power transmission module to the first external device.

14. The method of claim 11, further comprising:

activating a first switch disposed at a first path between the battery and the wired power transmission interface,

wherein the second power is provided from the battery to the wired power transmission interface through the first switch.

15. The method of claim 14, further comprising:

converting a first voltage from the battery to a second voltage that is lower than the first voltage.

16. The method of claim 11, further comprising:

activating a second switch disposed at a second path between the battery and the wireless power transmission module,

wherein the first power is provided from the battery to the wireless power transmission module.

17. The method of claim 11, further comprising:

preventing a third power being received from wired power reception interface by deactivating a third switch.

18. The method of claim 17, further comprising:

preventing the second power from being provided to the wired power reception interface by deactivating a fourth switch.

19. The method of claim 17, further comprising:

preventing the first power from being provided to the wired power reception interface by deactivating a fifth switch.

20. The method of claim 11, further comprising:

preventing the first power and the second power from being provided to a wireless power reception module by deactivating a six switch.