# US 10,374,450 B2 · Battery charging method and electronic device

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- Number: US 10,374,450 B2
- Document ID: US10374450B2
- Status: Granted
- Kind: B2
- Application number: 15/715,042
- Filed: 2017-09-25
- Published: 2018-01-11
- Granted: 2019-08-06
- Earliest claimed: 2012-06-19
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Hee-Tae Kim; Ku-Chul Jung; Kwang-Sub Lee; Se-Young Jang
- Web page: https://patentgrep.com/patent/US10374450B2

## CPC

- G06F 1/263: {Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence)}
- G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips}
- H02J 7/02: for charging batteries from AC mains by converters
- H02J 7/34: Parallel operation in networks using both storage and other DC sources, e.g. providing buffering (H02J7/14 takes precedence)
- H02J 50/00: Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence)
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/443: {using passive battery identification means, e.g. resistors or capacitors (identification by mechanical connections H02J7/751)}
- H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
- H02J 2207/40: adapted for charging from various sources, e.g. AC, DC or multivoltage
- Y02E 60/10: Energy storage using batteries
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A method comprises providing power from a battery to an external device using a first circuit; and receiving power from a first power source to provide power to the battery using a second circuit while providing power to the external device.

## Claims

### Claim 1

A method of operating an electronic device, the method comprising:
detecting an occurrence of a wireless charging event for wirelessly receiving first power for charging a battery of the electronic device;
charging the battery of the electronic device using the wirelessly received first power, based on detecting the occurrence of the wireless charging event;
supplying power from the battery to another electronic device connected to the electronic device via a wired connection, while charging the battery using the wirelessly received first power;
detecting an occurrence of a wired charging event for receiving second power via the wired connection for charging the battery of the electronic device;
selecting, in response to the detection of the occurrence of the wired charging event in a state of charging the battery using the first power, power to be used for charging the battery among the first power and the second power; and
charging, in response to the selection, the battery of the electronic device using the selected power among the first power and the second power.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the electronic device comprises a mobile telephone or a tablet computer.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the electronic device and the other electronic device comprise respective mobile telephones.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the selecting further comprises:
identifying, in response to the detection of the occurrence of the wired charging event, first information associated with charge capacity of the wirelessly received first power and second information associated with charge capacity of the received second power; and
selecting the power to be used for charging the battery among the first power and the second power based on the identified first information and the identified second information.

### Claim 5 (depends on 1)

The method according to claim 1, wherein detecting an occurrence of the wireless charging event comprises detecting first power supplied by a wireless charging device.

### Claim 6 (depends on 5)

The method according to claim 5, wherein detecting first power supplied by the wireless charging device comprises detecting an induced current.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the wired connection comprises a Universal Serial Bus (USB) connection.

### Claim 8 (depends on 7)

The method according to claim 7, wherein the USB connection comprises a USB On-The-Go (OTG) connection.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the charging of the battery using the wirelessly received first power uses a first charging circuit and the supplying of power from the battery to the other electronic device uses a second charging circuit different from the first charging circuit.

### Claim 10

An electronic device comprising:
a battery; and
circuitry configured to:
detect an occurrence of a wireless charging event for wirelessly receiving first power for charging the battery;
charge the battery of the electronic device using the wirelessly received first power, based on detecting the occurrence of the wireless charging event;
supply power from the battery to another electronic device connected to the electronic device via a wired connection, while charging the battery using the wirelessly received first power;
detect an occurrence of a wired charging event for receiving second power via the wired connection for charging the battery of the electronic device;
select, in response to the detection of the occurrence of the wired charging event in a state of charging the battery using the first power, power to be used for charging the battery among the first power and the second power; and
charge, in response to the selection, the battery of the electronic device using the selected power among the first power and the second power.

### Claim 11 (depends on 10)

The electronic device according to claim 10, comprising a mobile phone or a tablet computer.

### Claim 12 (depends on 10)

The electronic device according to claim 10, wherein the electronic device and the other electronic device comprise respective mobile telephones.

### Claim 13 (depends on 10)

The electronic device according to claim 10, wherein the circuitry is further configured to:
identify, in response to the detection of the occurrence of the wired charging event, first information associated with charge capacity of the wirelessly received first power and second information associated with charge capacity of the received second power; and
select the power to be used for charging the battery among the first power and the second power based on the identified first information and the identified second information.

### Claim 14 (depends on 10)

The electronic device according to claim 10, wherein the circuitry is configured to detect an occurrence of the wireless charging event by detecting first power supplied by a wireless charging device.

### Claim 15 (depends on 14)

The electronic device according to claim 14, wherein the circuitry is configured to detect first power supplied by the wireless charging device by detecting an induced current.

### Claim 16 (depends on 10)

The electronic device according to claim 10, wherein the wired connection comprises a Universal Serial Bus (USB) connection.

### Claim 17 (depends on 16)

The electronic device according to claim 16, wherein the USB connection comprises a USB On-The-Go (OTG) connection.

### Claim 18 (depends on 10)

The electronic device according to claim 10, wherein the circuitry comprises a first circuit for charging the battery using the wirelessly received first power and a second circuit different from the first circuit for supplying power from the battery to the other electronic device.