METHOD OF TRANSMITTING AND RECEIVING POWER AND ELECTRONIC DEVICE USING THE SAME

• US 20170012446A1
• Filed: 04/26/2016
• Published: 01/12/2017
• Est. Priority Date: 07/06/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LIM, Kyungwoo, PARK, Hyunsup, KIM, Kihyun, PARK, Seho, LEE, Wooram
• Granted Patent: US 10,128,669 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 that is mounted in the housing and includes 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 in the interior of the housing, wherein the circuit is configured to;

receive power from a first external device by using the conductive pattern,

charge at least some of the plurality of cells in the battery by using the received power,

change a first voltage, which is generated by a series connection between 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 power corresponding to the second voltage to a second external device by using the conductive pattern.

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

at least one processor in the housing;

a display that is exposed through at least one side of the housing and is connected to the processor; and

a memory electrically connected to the processor,

wherein the memory stores instructions that, when executed configure the processor to;

receive a first signal from the second external device, and

transmit the power corresponding to the second voltage to the second external device by using the circuit at least partially based on the first signal.

3. The electronic device of claim 2, wherein the at least one processor is further configured to control the display to display an indication of at least one of a charging state of the battery and a charging state of a battery of the second external device.

4. The electronic device of claim 1, wherein the circuit is configured to charge at least two of the plurality of cells in the battery, which are connected in parallel, by using the received power.

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

receive powerfrom a third external device over a wired connection between the electronic device and the third external device,

charge at least some of the plurality of cells in the battery by using the power,

change a third voltage, which is generated by a series connection between at least two of the plurality of cells in the battery, into a fourth voltage that is lower than the third voltage, and

transmit power corresponding to the fourth voltage to a fourth external device over a wired connection between the electronic device and the fourth external device.

6. The electronic device of claim 5, wherein the circuit is further configured to provide at least some of the wiredly received power or the wirelessly received power to the fourth external device.

7. The electronic device of claim 5, wherein the circuit is further configured to provide at least some of the wiredly received power to the second external device, and prevent the wiredly received power from flowing into the conductive pattern.

8. The electronic device of claim 5, wherein the circuit is further configured to prevent the power provided to the second or fourth external device from flowing into the conductive pattern.

9. An electronic device comprising:

a housing;

a battery that is mounted in the housing and includes a plurality of cells that are connected in series; and

a circuit electrically connected to the battery, wherein the circuit is configured to;

receive power from a first external device, the power being received over one of a wired channel and a wireless channel,

charge at least some of the plurality of cells in the battery by using the received power,

generate a voltage by a series connection between at least two of the plurality of cells in the battery, and

transmit power corresponding to the generated voltage to a second external device over at least one of a wired channel and a wireless channel.

10. The electronic device of claim 9, wherein the circuit is further configured to transmit at least some of the wiredly received power or wirelessly received power to the second external device over at least one of a wired channel and a wireless channel.

11. A method for use in an electronic device, comprising:

receiving power from a first external device, the received power being received over a wireless channel;

charging at least some of a plurality of cells in a battery of the electronic device by using the received power;

changing a first voltage, which is generated by a series connection between at least two of the plurality of cells in the battery, into a second voltage that is lower than the first voltage; and

wirelessly transmitting power corresponding to the second voltage to a second external device.

12. The method of claim 11, further comprising receiving a first signal from the second external device, wherein the power corresponding to the second voltage is transmitted in response to the first signal.

13. The method of claim 11, further comprising displaying, on a display of the electronic device, an indication of at least one of a charging state of the battery and a charging state of a battery of the second external device.

14. The method of claim 11, wherein the charging of the at least some of the plurality of cells in the battery comprises:

charging at least two of the plurality of cells in the battery, which are connected in parallel, by using the received power.

15. The method of claim 11, further comprising:

receiving power from a third external device over a wired connection between the electronic device and the third external device;

charging at least some of the plurality of cells in the battery by the received power from the third external device;

changing a third voltage, which is generated by a series connection between at least two of the plurality of cells in the battery, into a fourth voltage that is lower than the third voltage; and

transmitting power corresponding to the fourth voltage to a fourth external device, the power corresponding to the fourth voltage being transmitted over a wired connection between the electronic device and the fourth external device.

16. The method of claim 15, further comprising:

transmitting, to the fourth external device, at least some of the wiredly received power or the wirelessly received power.

17. The method of claim 15, further comprising:

transmitting at least some of the wiredly received power to the second external device.

18. The method of claim 15, further comprising shutting off the power transmitted to the second or fourth external device to prevent the power from flowing into the first external device and the third external device.