Charging method, AC adapter, charging managing device and terminal

A charging management and alternating current technology, applied in the fields of alternating current adapters, charging management devices and terminals, mobile portable electronic products, and charging methods based on USB interfaces

Inactive Publication Date: 2015-07-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the input current of the charging management chip may exceed the rated operating current of the MICRO USB connector, that is, exceed the flow capacity of the MICRO USB connector, thereby destroying the USB connector

Method used

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  • Charging method, AC adapter, charging managing device and terminal
  • Charging method, AC adapter, charging managing device and terminal
  • Charging method, AC adapter, charging managing device and terminal

Examples

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Embodiment Construction

[0048] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0049] To achieve fast charging, you can increase the charging current of the battery, which will increase the input current of the charging management chip accordingly, but the input current of the charging management chip may exceed the rated operating current of the MICRO USB connector, that is, exceed the MICRO USB connector. flow capability, thereby destroying the USB connector. Therefore, in the embodiment of the present invention, the current absorbed from the AC adapter side remains unchanged, which is still maintained at about 1A, but the input voltage of the USB int...

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Abstract

A charging method, an alternating current adaptor, a charging management device and a terminal. The alternating current adaptor comprises: a micro-USB connector for connecting to an external terminal so as to charge the external terminal; a conversion module for converting a connected alternating current into a direct current and then outputting same to the micro-USB connector as an output; increasing a voltage to a designated value after having received a boosting instruction of a control module; a changeover switch which normally connects two differential signal lines of the micro-USB connector to a resistor by default and, when the micro-USB connector is connected to the external terminal, detects whether the two differential signal lines of the micro-USB connector are in a short-circuit state, and if so, then triggers the control module and disconnects the two differential signal lines of the micro-USB connector from the resistor; and the control module for sending the boosting instruction to the conversion module after being triggered. The technical solution may realize the rapid charging of a lithium battery of a portable mobile electronic product.

Description

technical field [0001] The invention relates to the technical field of battery power charging, and is especially suitable for battery-powered mobile portable electronic products, and in particular relates to a charging method based on a USB interface, an AC adapter, a charging management device and a terminal. Background technique [0002] Mobile and portable electronic products are more and more favored by consumers and become an indispensable tool in people's daily life. People hope that this type of life tool can be used anytime and anywhere. Convenience and convenience are the goals people pursue. However, in today's consumer battery products, the battery is easy to consume, requires frequent charging, and the charging time is relatively long, which has become a major trouble for people to use mobile and portable battery-powered products. In this context, according to the basic principle of fast charging, a fast / slow adaptive intelligent charging method and device based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/02H02J7/00H01M10/44
CPCH01M10/446H02J7/00H02M7/02Y02E60/10H02J7/00045H02J7/0045
Inventor 胡东平王继红
Owner ZTE CORP
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