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Charging circuit and method and terminal

A charging circuit and wired charging technology, applied in battery circuit devices, circuit devices, different battery charging directions, etc., can solve problems such as excessive charging current and terminal short circuit

Inactive Publication Date: 2017-05-31
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In a terminal compatible with wired charging and wireless charging, if the terminal is connected to wireless charging and wired charging at the same time, then the charging circuit of the terminal will receive two streams of current, which will cause the charging current to be too large and cause internal damage to the terminal. short circuit

Method used

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  • Charging circuit and method and terminal
  • Charging circuit and method and terminal
  • Charging circuit and method and terminal

Examples

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Embodiment Construction

[0021] The embodiment of the present invention provides a charging circuit, which can prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large.

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] The terms "first", "second" and "third" appearing in the specification, claims and ...

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PUM

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Abstract

The invention provides a charging circuit, a terminal and a charging method. The circuit comprises a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switch device, a driver and a battery charging loop, the wireless charging interface is connected with a first input end of the switch device, the wired charging interface is connected with a second input end of the switch device, an output end of the switch device is connected with the battery charging loop, the first detection circuit is used for generating first detection signals when the wireless charging interface is coupled with a wireless charging adapter, the second detection circuit is used for generating second detection signals when the wired charging interface is coupled with a wired charging adapter, and the driver controls communication of wireless charging loops or wired charging loops according to the first detection signals and the second detection signals. Over-high charging current can be prevented.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to a charging circuit, method and terminal. Background technique [0002] With the development of science and technology, a terminal appears on the market, which can support both wired charging and wireless charging. [0003] In a terminal compatible with wired charging and wireless charging, if the terminal is connected to wireless charging and wired charging at the same time, then the charging circuit of the terminal will receive two streams of current, which will cause the charging current to be too large and cause internal damage to the terminal. short circuit. Contents of the invention [0004] The embodiments of the present invention provide a charging circuit, method and terminal, which can prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large. [0005] The f...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0003
Inventor 裴健学
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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