Electronic device and method for controlling power supply

1. An electronic device comprising:

a connection terminal;

a battery;

a power regulator configured to generate a second power by regulating a first power supplied from the battery;

a switch; and

a control circuit,

wherein the control circuit is configured to:

detect a connection with an external electronic device through the connection terminal,

after detecting the connection with the external electronic device, perform, based on identification information of the external electronic device, an authentication with the external electronic device,

based on the authentication being successful, control the switch to be in a first state in which the first power supplied from the battery is bypassed to the connection terminal such that the first power is provided to the external electronic device, and

based on the authentication not being successful, control the switch to be in a second state in which the first power supplied from the battery is provided to the power regulator such that the second power that is based on the first power, generated by the power regulator is provided to the external electronic device through the connection terminal.

2. The electronic device of claim 1 , wherein the identification information includes information related to the authentication based on USB type-C or USB communication with the external electronic device.

3. The electronic device of claim 1 , wherein the control circuit is configured to transmit identification information of the electronic device to the external electronic device.

4. The electronic device of claim 1 , further comprising a memory configured to store at least one piece of identification information,

wherein the control circuit is configured to:

acquire the identification information, and

perform the authentication with the external electronic device, based on a comparison between the acquired identification information and the at least one piece of identification information stored in the memory.

5. The electronic device of claim 4 , wherein, when the acquired identification information is identical to the at least one piece of identification information stored in the memory within a predetermined range, the control circuit is configured to determine that the authentication of the external electronic device is successful.

6. The electronic device of claim 4 , wherein, when the acquired identification information is different from the at least one piece of identification information stored in the memory, the control circuit is configured to determine that the authentication of the external electronic device is not successful.

7. The electronic device of claim 6 , wherein, based on the authentication not being successful, the control circuit is further configured to control the power regulator to regulate the first power supplied from the battery to the second power within a predetermined range and provide the second power within the predetermined range to the external electronic device through the connection terminal.

8. The electronic device of claim 1 , wherein the switch includes at least one Metal Oxide Semiconductor Field Effect Transistor (MOSFET) or an On/Off switch.

9. An electronic device comprising:

a connection terminal;

a battery;

a charging circuit; and

a processor,

wherein the processor is configured to:

detect a connection with an external electronic device through the connection terminal,

after detecting the connection with the external electronic device, perform, based on identification information of the external electronic device, an authentication with the external electronic device,

based on the authentication being successful, transmit first information for causing the external electronic device to control a switch of the external electronic device to be in a first state in which a first power supplied from a battery of the external electronic device is bypassed to a connection terminal of the external electronic device such that the first power is provided from the external electronic device to the electronic device,

based on the authentication not being successful, transmit second information for causing the external electronic device to control the switch to be in a second state in which the first power supplied from the battery of the external electronic device is provided to a power regulator of the external electronic device such that a second power that is, based on the first power, generated by the power regulator is provided from the external electronic device to the electronic device, and

charge the battery of the electronic device with the first or second power through the charging circuit.

10. The electronic device of claim 9 , wherein the identification information includes information related to the authentication based on USB type-C or USB communication with the external electronic device.

11. The electronic device of claim 9 , wherein the first power corresponds to power actually identical to current power of the battery of the electronic device.

12. The electronic device of claim 9 , further comprising a memory configured to store at least one piece of identification information,

wherein, when the identification information is received from the external electronic device, the processor is configured to perform the authentication of the external electronic device at least based on a comparison between the received identification information and the at least one piece of identification information stored in the memory.

13. The electronic device of claim 9 , wherein the identification information is transmitted/received while being included in a Unstructured Vendor Defined Message (UVDM) transmitted/received through a Configuration Channel (CC) terminal of USB type-C.

14. A method for providing an external electronic device with power in an electronic device, the method comprising:

detecting a connection with the external electronic device;

after detecting the connection with the external electronic device, performing, based on identification information of the external electronic device, an authentication with the external electronic device;

based on the authentication being successful, controlling a switch of the electronic device to be in a first state in which a first power supplied from a battery of the electronic device is bypassed to a connection terminal of the electronic device such that the first power is provided to the external electronic device; and

based on the authentication not being successful, controlling the switch to be in a second state in which the first power supplied from the battery is provided to a power regulator of the electronic device such that a second power which is, based on the first power, generated by the power regulator is provided to the external electronic device through the connection terminal.

15. The method of claim 14 , wherein the identification information includes information related to the authentication based on USB type-C or USB communication with the external electronic device.

16. The method of claim 14 , further comprising:

transmitting identification information of the electronic device to the external electronic device.

17. The method of claim 14 , further comprising acquiring the identification information,

wherein performing the authentication with the external electronic device comprises:

performing the authentication with the external electronic device, based on a comparison between the acquired identification information and at least one piece of identification information stored in a memory of the electronic device.

18. The method of claim 17 , further comprising:

when the acquired identification information is identical to the at least one piece of identification information stored in the memory within a predetermined range, determining that the authentication of the external electronic device is successful.

19. The method of claim 17 , further comprising:

when the acquired identification information is different from the at least one piece of identification information stored in the memory, determining that the authentication of the external electronic device is not successful.

20. The method of claim 19 , further comprising:

based on the authentication being not successful, controlling the power regulator to regulate the first power supplied from the battery to the second power within a predetermined range and provide the second power within the predetermined range to the external electronic device.

21. The method of claim 14 , wherein the switch includes at least one Metal Oxide Semiconductor Field Effect Transistor (MOSFET) or an On/Off switch.