Electronic device and method for wired and wireless charging in electronic device

• US 10,199,872 B2
• Filed: 08/18/2016
• Issued: 02/05/2019
• Est. Priority Date: 08/19/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Ku-Chul, Park, Chul-Woo, Yoon, Sung-Geun, Ryu, Sang-Hyun
• Primary Examiner(s): Cavallari, Daniel
• Application Number:
  US15/240,516
• Publication Number:
  US 20170054328A1
• Time in Patent Office: 901 Days
• Field of Search: None
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery
• CPC Class Codes: H02J 7/00714 in response to battery charging or discharging current
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

An apparatus for wired and wireless charging of an electronic device are provided. The electronic device includes a housing, a display on a surface of the housing, a battery mounted in the housing, a circuit electrically connected with the battery, a conductive pattern positioned in the housing, electrically connected with the circuit, and configured to wirelessly transmit power to an external device, a connector on another surface of the housing and electrically connected with the circuit, a memory, and a processor electrically connected with the display, the battery, the circuit, the connector, and/or the memory. The circuit is configured to electrically connect the battery with the conductive pattern to wirelessly transmit power to the external device and electrically connect the battery with the connector to transmit power to the external device by wire, simultaneously or selectively, with wirelessly transmitting power to the external device.

Claims

1. An electronic device comprising:

a housing;

a display on a surface of the housing;

a battery mounted in the housing;

a circuit electrically connected with the battery;

a conductive pattern positioned in the housing, the conductive pattern electrically connected with the circuit and configured to wirelessly transmit power to an external device;

a connector on another surface of the housing and electrically connected with the circuit;

a memory; and

a processor electrically connected with the display, the battery, the circuit, the connector, or the memory,

wherein the circuit is configured to;

electrically connect the battery with the conductive pattern to wirelessly transmit power to the external device, and

electrically connect the battery with the connector to wiredly transmit power to another external device, simultaneously or selectively with wirelessly transmitting power to the external device.

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

change a first voltage generated by the battery into a second voltage higher than the first voltage,

transmit a portion of a current generated by the second voltage to the conductive pattern, and

transmit another portion of the current generated by the second voltage to the connector.

3. The electronic device of claim 1,

wherein the connector further comprises a quick charging interface configured to charge another battery included in an external device to a voltage level selected from a plurality of voltage levels, and

wherein the quick charging interface is electrically connected with the connector and/or the conductive pattern.

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

receive information on charging from the external device or the other external device, and

select the selected voltage level from the plurality of voltage levels based on the received information.

5. The electronic device of claim 1, wherein the circuit is further configured to wirelessly or wiredly transmit power to the external device or the other external device based on a user input.

6. The electronic device of claim 1, wherein the circuit displays information related to the other external device on the display based on a signal received from the other external device through the connector.

7. The electronic device of claim 1,

wherein the circuit comprises:

a first control circuit for controlling a current flow with the other external device connected through the connector,

a second control circuit for controlling a current flow with the conductive pattern, and

a third control circuit electrically connected with the first control circuit, the second control circuit, and the battery, and

wherein the third control circuit is configured to;

change a voltage and/or a current from the battery, and

provide the voltage and/or the current to the first control circuit and/or the second control circuit.

8. The electronic device of claim 7, wherein at least one of the first control circuit or the second control circuit includes at least one switching element electrically connected between the connector or the third control circuit and the conductive pattern.

9. The electronic device of claim 8, wherein the at least one switching element includes at least two transistor elements connected in series between the connector or the third control circuit and the conductive pattern.

10. The electronic device of claim 7, wherein the third control circuit includes a buck/boost converter and a logic circuit controlling the converter.

11. The electronic device of claim 10,

wherein the third control circuit further includes a charging switching circuit electrically connected between the buck/boost converter and the battery, and

wherein the logic circuit controls the charging switching circuit to prevent over-charging or over-discharging of the battery.

12. The electronic device of claim 1, wherein, when the electronic device is connected with an external wireless power supply device and an on-the-go OTG device, the memory stores an instruction executed to enable the processor to allow the electronic device to receive power from the external wireless power supply device to charge the battery and simultaneously perform an OTG function or to allow the electronic device to supply power to the wireless power receiving device using the battery, and simultaneously perform an OTG function.

13. The electronic device of claim 1, wherein, when the electronic device is connected with a wired power supply device and a wireless power receiving device, the memory stores an instruction executed to enable the processor to allow the electronic device to receive power from the wired power supply device to charge the battery, and simultaneously supply power to the wireless power receiving device.

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

determining whether the electronic device is connected with a wireless power receiving device and a wired power receiving device;

when the wireless power receiving device and the wired power receiving device are connected, electrically connecting a battery with a conductive pattern to wirelessly transmit power to the wireless power receiving device, by the electronic device; and

while simultaneously transmitting power wirelessly to an external device, electrically connecting the battery with a connector to wiredly transmit power to the wired power receiving device, by the electronic device.

15. The method of claim 14, wherein the electronic device comprises:

a display on a surface of a housing;

a battery mounted in the housing;

a circuit electrically connected with the battery;

a conductive pattern positioned in the housing, the conductive pattern electrically connected with the circuit, and the conductive pattern configured to wirelessly transmit power to the external device;

a connector on another surface of the housing, and electrically connected with the circuit; and

a processor configured to be electrically connected with a memory, the display, the battery, the circuit, or the connector,

wherein the circuit is configured to;

electrically connect the battery with the conductive pattern,

wirelessly transmit power to the external device, and

electrically connect the battery with the connector to wiredly transmit power to the external device simultaneously or selectively with the wirelessly transmitting of power to the external device.

16. The method of claim 15, further comprising:

changing a first voltage generated by the battery into a second voltage higher than the first voltage;

transmitting a portion of a current generated by the second voltage to the conductive pattern; and

transmitting another portion of the current generated by the second voltage to the connector.

17. The method of claim 15, further comprising:

charging another battery included in an external device to a voltage level selected from a plurality of voltage levels.

18. The method of claim 15, further comprising:

receiving, through the display by the electronic device, a user input for transmitting, wirelessly or wiredly, power from the battery to another external device through the display;

or

receiving power, wirelessly or wiredly, from the other external device.

19. The method of claim 15, further comprising:

displaying at least one or more external devices connected to the electronic device and remaining battery power of the connected at least one or more external devices.

20. A non-transitory computer-readable storage medium storing instructions that, when executed, cause at least one processor to perform the method of claim 14.