Battery charging method and electronic device

• US 9,787,130 B2
• Filed: 06/03/2013
• Issued: 10/10/2017
• Est. Priority Date: 06/19/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Hee-Tae, Jung, Ku-Chul, Lee, Kwang-Sub, Jang, Se-Young
• Primary Examiner(s): Tran, Thienvu
• Assistant Examiner(s): Baxter, Brian K
• Application Number:
  US13/908,311
• Publication Number:
  US 20130334883A1
• Time in Patent Office: 1,590 Days
• Field of Search: 307 29
• CPC Class Codes: G06F 1/263 Arrangements for using multiple switchable power supplies, e.g. battery and AC G06F1/30 takes precedence
• CPC Class Codes: 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
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00038 using passive battery identification means, e.g. resistors or capacitors identification by mechanical connections H02J7/0045
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

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

1. An operating method of an electronic device, the operating method comprising:

providing power from a battery to an external device using a first circuit based on determining that the external device is connected to the electronic device through an USB connection;

receiving power from a first power source wirelessly connected to the electronic device;

providing the received power to the battery using a second circuit,

determining whether a second power source is connected to the electronic device based upon determining that the external device is disconnected from the electronic device; and

providing power to the battery using the power supplied from the second power source using the first circuit based upon determining that the second power source is connected to the electronic device,

wherein providing power to the battery using the first circuit and providing power to the battery using the second circuit are performed simultaneously,

wherein providing power to the external device using the first circuit and providing received power to the battery using the second circuit are performed simultaneously.

2. The method of claim 1, wherein providing the power from the battery comprises:

providing the power from the battery to the external device through a path comprising a reverse path of a path through which the electronic device is configured to receive power from the second power source.

3. The method of claim 2, wherein the first power source and the second power source each comprises one of a wireless charging device or a wire charging device.

4. The method of claim 1, wherein at least one of the first circuit and the second circuit comprises at least one of a switching charging circuit and a linear charging circuit.

5. The method of claim 1, further comprising:

detecting the external device connected to the electronic device;

determining whether the detected external device is the second power source;

wherein the electronic device provides power from the battery to the external device using the first circuit if the detected external device is not the second power source.

6. An electronic device comprising:

a battery;

a first circuit configured to provide power from the battery to an external device based on a determination that the external device is connected to the electronic device through an USB connection; and

a second circuit configured to receive power from a first power source wirelessly connected to the electronic device, and provide the received power to the battery,

wherein power being provided to the external device using the first circuit and received power being provided to the battery using the second circuit are performed simultaneously,

wherein, based on a determination that the external device is disconnected from the electronic device and a second power source is connected to the electronic device, power is provided to the battery using power supplied from the second power source using the first circuit,

wherein power being provided to the battery using the first circuit and power being provided to the battery using the second circuit are performed simultaneously.

7. The electronic device of claim 6, wherein the first circuit is configured to supply power to the external device using a reverse path of a path through which the electronic device receives power from the second power source.

8. The electronic device of claim 7, wherein the first power source and the second power source each comprises one of a wireless charging device or a wire charging device.

9. The electronic device of claim 6, wherein the first circuit and the second circuit include at least one of a switching charging circuit and a linear charging circuit.

10. The electronic device of claim 6, wherein the electronic device is configured to detect the external device connected to the electronic device, and to determine whether the detected external device is the second power source,

wherein the electronic device provides power from the battery to the external device using the first circuit if the detected external device is not the second power source.