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Charging control device and charging control method

A charging control method and charging control technology, which are applied in the directions of circuit devices, battery circuit devices, and secondary battery charging/discharging, and can solve the problems of secondary battery deterioration and secondary battery life reduction, etc.

Inactive Publication Date: 2015-02-11
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the above-mentioned prior art, there is a possibility that it is judged to be fully charged even though it is not fully charged, or an overcharged state in which charging is continued (main charging) occurs even though it is fully charged.
In addition, when the overcharged state occurs frequently, the secondary battery deteriorates, so there is a problem that the life of the secondary battery is shortened.

Method used

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  • Charging control device and charging control method
  • Charging control device and charging control method
  • Charging control device and charging control method

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Embodiment Construction

[0026] Hereinafter, embodiments of the charging control device and the charging control method according to the present invention will be described in detail with reference to the drawings.

[0027] figure 1 It is a block diagram showing an example of the configuration of the information processing device according to the present embodiment. The information processing device 1 is an information processing device such as a portable terminal such as a PC or a smartphone, or a POS terminal.

[0028] The information processing device 1 has a CPU (Central Processing Unit: Central Processing Unit) 11, a ROM (Read Only Memory: Read Only Memory) 12, a RAM (Random Access Memory: Random Access Memory) 13, a nonvolatile memory 14, an input unit 15, display unit 16, communication unit 17, etc. In addition, the information processing device 1 includes a power source control device 20 for supplying electric power required for operation to each constituent element, a secondary battery 30 ,...

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Abstract

The invention discloses a charging control device and a charging control method, the service life of a secondary battery can be prolonged, and the charging control device is used for controlling the charging of the secondary battery. The charging control device comprises a voltage detecting part, a determining part and a charging control part. The voltage detecting part detects the value of the output voltage of the secondary battery. The determining part determines whether the secondary battery is in a fully-charged state or not based on the value of the output voltage. When the determining part determines that the secondary battery is not fully charged, the charging control part charges the secondary battery with electricity slowly during a first specified period and makes the secondary battery be in a fully-charged state.

Description

[0001] This application claims the priority of the Japanese application with the filing date of August 8, 2013 and the application number JP2013-165356, and cites the content of the above application. technical field [0002] The invention relates to a charging control device and a charging control method. Background technique [0003] Currently, in order to charge the secondary battery, a charging device is used. The charging method in this charging device is generally performed based on the voltage output from the secondary battery (output voltage) and the voltage for charging the secondary battery (charging voltage). [0004] For example, the output voltage of the secondary battery is used to determine whether the secondary battery is in a fully charged state (fully charged state). It is checked whether the output voltage is greater than or equal to a certain specified value X (over-discharge voltage test), and if it is smaller than the specified value X, it is judged to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH01M10/44H02J7/007Y02E60/10
Inventor 石垣信司
Owner TOSHIBA TEC KK
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