Configuration method of output current and terminal

A technology of output current and configuration method, applied in the direction of measurement device, data processing power supply, measurement flow/mass flow, etc., can solve problems such as hidden safety hazards, external equipment cannot be driven normally, and cannot meet the charging requirements of external equipment, etc. The effect of power supply security

Inactive Publication Date: 2017-01-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual use, when the terminal works in the USB Host mode, the output current provided is usually a fixed value, and different external devices have different charging or power consumption requirements, therefore, the single output current provided by the terminal cannot meet multiple requirements. The charging requirements of external devices corresponding to different peripheral interfaces
For example, when the power consumption of the USB external device is not large, the current of 500 mA can fully meet the demand, and when the peripheral device consumes a lot of power, such as a mobile hard disk (especially a USB 3.0 mobile hard disk); or, when the terminal passes When multiple external devices are connected to the extended interface of the USB Hub, the external devices may not be able to be normally driven due to insufficient power supply. There are security risks

Method used

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  • Configuration method of output current and terminal
  • Configuration method of output current and terminal
  • Configuration method of output current and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The embodiment of the present invention provides a configuration method of output current, such as figure 1 As shown, the method may include:

[0037] S101. When detecting that an external device is connected, the terminal acquires a rate type of the external device.

[0038] It should be noted that the application scenario of the output current configuration method provided by the embodiment of the present invention is: the terminal is provided with a peripheral interface, and when the external device is connected to the terminal through the peripheral interface, the terminal needs to supply power to the external device, so that the External devices can work normally. At the same time, the peripheral interface in the terminal matches the interface of the external device.

[0039] Optionally, the terminal is a device that supports USB interface access. Specifically, the terminal can be a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a...

Embodiment 2

[0087] Such as Figure 4 As shown, the present invention provides a terminal 1, which may include: a charging management chip software module 11, and a peripheral interface driver software module 10 connected to the charging management chip software module 11.

[0088] The peripheral interface driver software module 10 is configured to obtain the rate type of the external device when it is detected that the external device is connected.

[0089] The charging management chip software module 11 is configured to configure the output current corresponding to the rate type of the external device to the peripheral interface according to the rate type of the external device acquired by the peripheral interface driver software module 10 Driver software module 10 .

[0090] optional, such as Figure 5 As shown, the peripheral interface driver software module 10 includes an external driver 100 , the charging management chip software module 11 includes an external function interface 11...

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Abstract

The embodiment of the invention discloses a configuration method of output current. The configuration method comprises the following steps of when the accessing of external equipment is detected, obtaining the rate type of the external equipment; according to the rate type of the external equipment, configuring the output current corresponding to the rate type of the external equipment. The embodiment of the invention also discloses a terminal.

Description

technical field [0001] The invention relates to power supply management technology in the electronic field, in particular to a configuration method and terminal for output current. Background technique [0002] In daily life, terminal applications such as mobile phones, tablet computers, and PDAs are becoming more and more popular. With the continuous development of communication technology, the function that a terminal can access an external device is more and more widely used. [0003] At present, the peripheral interfaces adopted by most existing terminals are Universal Serial Bus (USB, Universal Serial Bus), such as mini USB interface, micro USB interface and so on. The USB interface can provide 5V charging power, which can support plug and play for external devices. Specifically, the USB Host function has become a common function of the terminal. When the terminal is in the USB Host mode, in order to drive the external USB external device, it needs to provide voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26
Inventor 王振煜
Owner ZTE CORP
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