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Portable electronic device and use method

An electronic device and portable technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve problems such as unrecognizable charger identity information, long charging time, and reduced user experience

Inactive Publication Date: 2014-12-24
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the electronic components (such as the central processing unit, power management chip) in most electronic terminals related to the charging circuit cannot recognize the identity information in the charger, it makes it difficult for the user to use the load capacity without knowing it. Smaller chargers (with a rated charging current of 500 mA) often take longer to charge, degrading user experience

Method used

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  • Portable electronic device and use method

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Embodiment Construction

[0013] see figure 1 , a preferred embodiment of the present invention provides a portable electronic device 100 , which can be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA) and other terminals with a USB interface 10 .

[0014] The portable electronic device 100 is electrically connected to a charger 200 through the USB interface 10 and a common USB data cable, so as to be charged by the charger 200 . The charger 200 includes a current conversion unit 220 , a storage unit 240 and an interface unit 260 . The current converting unit 220 is used to convert external alternating current (such as 220V alternating current) into direct current (such as 5V direct current). The current conversion unit 220 includes a ground terminal G and a power terminal V, and the power terminal V is used to output current to the outside. In this embodiment, the storage unit 240 is an erasable-programmable-read-only memory (EPROM), which pre-stores ...

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Abstract

The invention provides a portable electronic device. The portable electronic device is charged by a charger, the charger comprises a storage unit, and the rated current of the charger is stored in the storage unit in advance. The portable electronic device comprises a central processor, a display screen and a power management chip, the central processor reads the rated current of the charger, a reference current is stored in the central processor in advance, the rated current of the charger is compared with the reference current, and if the rated current of the charger is smaller than the reference current, the central processor triggers prompting information, and the prompting information is displayed through the display screen. If the rated current of the charger is larger than or equal to the reference current, the central processor triggers a control signal to the power management chip, the power management chip configures the maximum safety charging current to the portable electronic device according to the rated current of the charger. The invention further provides a use method of the portable electronic device. The portable electronic device can effectively recognize the charger, and the charging process can be accelerated conveniently.

Description

technical field [0001] The invention relates to a portable electronic device, in particular to a portable electronic device charged through a USB interface and a use method thereof. Background technique [0002] With the development of electronic terminals such as mobile phones and tablet computers, the battery capacity has also increased accordingly. For example, at present, the battery capacity of most smartphones is concentrated at 1800-2000mA / h, and the corresponding charging current of the charger is also increased to about 1000 mA. However, since the electronic components (such as the central processing unit, power management chip) in most electronic terminals related to the charging circuit cannot recognize the identity information in the charger, it makes it difficult for the user to use the load capacity without knowing it. Smaller chargers (with a rated charging current of 500 mA) often take longer to charge and degrade user experience. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 何泉
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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