Feeding device

• US 9,866,048 B2
• Filed: 12/23/2014
• Issued: 01/09/2018
• Est. Priority Date: 01/23/2014
• Status: Active Grant

• Current Assignee: Toshiba Client Solutions CO., Ltd. (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Taki, Kinji, Mamata, Tooru
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Borroto, Alfonso Perez
• Application Number:
  US14/581,960
• Publication Number:
  US 20150207363A1
• Time in Patent Office: 1,113 Days
• Field of Search: 307 66, 307104
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

An electric power is fed from a wireless feeding device to a feeding device, and the feeding device feeds the electric power to an object to which the electric power is fed. The feeding device includes a power receiving module, a power circuit and a controller. The power receiving module receives the electric power from the wireless feeding device. The electric power is fed from the power receiving module or from an AC adapter to the power circuit and the power circuit feeds the electric power to the object to which the electric power is fed. The controller interrupts a supply of the electric power from the AC adapter.

Claims

1. A power control device comprising:

a wireless feeding device configured to feed electric power to an electronic apparatus through wireless power connection;

a battery provided in the electronic apparatus;

a controller configured to determine whether (i) the wireless feeding device is connected, (ii) an AC adapter is connected to the electronic apparatus, (iii) a remaining quantity of the battery is greater than or equal to a first threshold that is less than full capacity of the battery, wherein the AC adapter is configured to feed electric power to the electronic apparatus via a coupling with an adapter terminal of the electronic apparatus; and

a power circuit configured to feed electric power to a main part of the electronic apparatus,

wherein the power circuit (i) feeds electric power from the AC adapter to the main part of the electronic apparatus when the wireless feeding device is connected and the AC adapter is connected, (ii) feeds electric power from the wireless feeding device to the main part of the electronic apparatus when the wireless feeding device is connected and the AC adapter is not connected, and (iii) responsive to determining (a) the remaining quantity of the battery is greater than or equal to the first threshold and (b) the AC adapter is connected to the electronic apparatus, stops feeding of the electric power from the wireless feeding device and feeds electric power to the main part of the electronic apparatus from the AC adapter.

2. The power control device according to claim 1,

wherein, when the wireless feeding device is connected and the AC adapter is connected, and when the remaining quantity of the battery is lower than the first threshold, the power circuit feeds electric power from the AC adapter to the main part of the electronic apparatus without stopping feeding of the electric power from the wireless feeding device.

3. The power control device according to claim 1,

wherein, when the wireless feeding device is not connected and the AC adapter is not connected, and when the remaining quantity of the battery is equal to or higher than a second threshold, the power circuit feeds electric power from the battery to the main part of the electronic apparatus.

4. The power control device according to claim 3,

wherein, when the wireless feeding device is not connected and the AC adapter is not connected, and when the remaining quantity of the battery is lower than the second threshold, the power control device prevents activation of the main part of the electronic apparatus.