Controlling a charging operation of a battery

A charging control method and battery charging technology, which are applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problem of unsatisfactory product performance, it is difficult for the battery to maintain a fully charged state, and it is difficult to maintain 100% full Charging status, etc.

Inactive Publication Date: 2007-01-17
LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Because of this characteristic, it is always difficult for the battery to remain fully charged
In addition, due to the influence of its own discharge, the battery is barely maintained at a state close to full charge, and it is difficult

Method used

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  • Controlling a charging operation of a battery
  • Controlling a charging operation of a battery
  • Controlling a charging operation of a battery

Examples

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Example Embodiment

[0051] Embodiments of the battery charging control device and method of the present invention will be described in detail below.

[0052] The charging control of the battery in the present invention basically starts from the moment when the full charge capacity (FCC: Full Charge Capacity) standard of the battery becomes lower than the design capacity. In the present invention, in terms of the charging voltage, when the current does not match the design capacity, the charging voltage is increased to be constant at 4.2V.

[0053] In addition, as an example of the charging current (interruption current) of the present invention, when the current is set at 150 mA, the present invention increases the amount of energy to the battery by inputting a current lower than this value.

[0054] Figure 5 It is a block diagram of the charging control circuit of the battery according to the present invention. Image 6 It is a state diagram of the combined relationship between the voltage an...

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Abstract

The invention relates to a controlling device and a controlling method for charging operation of a battery, that is to say, it is a device and method to optimize charging stations of the batteryby adjusting charging capacity of the battery. The method includes reading an actual full charge capacity of the battery and a design capacity of the battery. The actual full charge capacity of the battery is compared with the design capacity of the battery. A charge voltage and a charge current are adjusted if the actual full charge capacity is less than the design capacity. The charge voltage and the charge current in adjusting step is used for controlling the charging operation of the battery. This invention determines the charging station, if the nonce full charge capacity is less than the design capacity, the charging operation of the battery is controlled by the adjusted charge voltage and charge current which are adjusted by decreasing charge current and increasing charge voltage. This invention can properly adjusts the full charge capacity of the battery and increases the charging efficiency.

Description

technical field [0001] The invention relates to a battery charging control device and method, in particular to a battery charging control device and method for adjusting the interruption current to a lower level and maximally controlling the full charging capacity of the battery. Background technique [0002] Portable devices such as notebook computers and PDAs use adapters to connect to commercial AC power or use batteries to provide the necessary power for the product. Such portable devices are frequently moved and carried with them, so their weight, volume and battery management are critical. [0003] The batteries used in the above portable devices are rechargeable secondary batteries. Recently, the development of portable wireless electronic products is increasing. To realize miniaturization and weight reduction of such products, secondary batteries with high energy density are becoming more and more important. In addition, with the improvement of environmental prote...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0072H02J7/00714H02J7/007182H02J7/00H02J7/04
Inventor 吴长根
Owner LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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