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Battery charging apparatus and method of portable equipment

A battery charging and battery technology, which is applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problems of long charging time, consumption, and inability to fully charge the maximum charging capacity, so as to reduce the charging time and increase the charging capacity. The effect of capacity

Inactive Publication Date: 2008-12-10
LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inability to change the charging current and the fixed current at the end of charging lead to a lot of charging time and the situation that the maximum charging capacity cannot be fully charged.

Method used

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  • Battery charging apparatus and method of portable equipment
  • Battery charging apparatus and method of portable equipment
  • Battery charging apparatus and method of portable equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The following describes in detail the accompanying drawings of the battery charging device and method of a portable device based on the above-mentioned examples of the present invention.

[0033] figure 1 It is a schematic diagram showing the structure of a portable device according to an example of the present invention.

[0034] Reference figure 1 , This device includes: a key input unit 100 that receives commands issued by a user; a receiving unit 102 that receives input from an external signal; and an A / D conversion that converts the analog signal received from the receiving unit 102 into a digital signal The codec 106 that converts the analog signal of sound or video into a digital signal and converts the digital signal into sound or video; the memory unit 108 that stores data; adjusts the amount of charging current according to the capacity of the battery using a resistor to make it The power management unit 110 that adjusts the current amount for charging below th...

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PUM

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Abstract

The invention relates to a battery charging unit of a portable device and a method thereof. The battery charging device of the portable device of the invention comprises: a power management unit and a receiving input power of a regulating current, which can make use of a resistance value to regulate a charging amperage according to a capacity of a battery so as to lead the battery to be charged below a first charging end current and continuously be charged below a second charging end current in the internal; a control unit which provides the current and voltage for the battery and controls and sets the charge current accepted by the battery according to the adjustment of the charging amperage in the power management unit; and the battery receiving the voltage from the power management unit. The invention can greatly improve the efficiency when charging.

Description

Technical field [0001] The present invention is related to a battery charging method of a portable device. Background technique [0002] Recently, there has been a trend of simultaneous development of low-capacity and large-capacity batteries for portable devices such as PDA (personal digital assistants) and PMP (Portable Multimedia Player). [0003] Among them, large-capacity batteries are developed in parallel with low-capacity cells (Cell). [0004] Therefore, when the capacity of the battery is increased by 2 times, the required complete charging time will also consume more than 2 times. [0005] The reason is that half of the charging current must be supplied to the battery cells with the same charging current and connected in parallel. The charging termination current (Charger Termination Current) that determines the end of charging has a fixed setting. At the same time as the Constant Voltage phase transitions, the current supplied by the series-parallel unit can be reduce...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCY02B40/00Y02E60/10
Inventor 李英柱
Owner LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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