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Power supply method and device of USB interface and antenna router device

A USB interface and line technology, applied in the field of communication, can solve problems such as abnormal shutdown or restart, load characteristic difference, etc., and achieve the effect of improving power supply security

Pending Publication Date: 2018-03-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a power supply method and device for a USB interface, and a wireless routing device, so as to at least solve the problem of power supply using a USB interfa

Method used

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  • Power supply method and device of USB interface and antenna router device
  • Power supply method and device of USB interface and antenna router device
  • Power supply method and device of USB interface and antenna router device

Examples

Experimental program
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Example Embodiment

[0036] Example 1

[0037] The method embodiment provided in the first embodiment of the present application may be executed in a mobile terminal, a computer terminal or a similar computing device. Take running on the terminal as an example, figure 1 It is a hardware structure block diagram of a mobile terminal of a USB interface power supply method according to an embodiment of the present invention. Such as figure 1 As shown, the terminal 10 may include one or more (only one is shown in the figure) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) for storing Data storage 104, and transmission device 106 for communication functions. Those of ordinary skill in the art can understand, figure 1 The structure shown is only for illustration, and does not limit the structure of the above electronic device. For example, the terminal 10 may also include figure 1 More or fewer compo...

Example Embodiment

[0055] Example 2

[0056] In this embodiment, a USB interface power supply device is also provided, which is used to implement the above-mentioned embodiments and preferred implementations, and the descriptions that have been described will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

[0057] image 3 It is a structural block diagram of a USB interface power supply device according to an embodiment of the present invention, such as image 3 As shown, the device includes: a control module 32, a detection module 34, a judgment module 36, and a determination module 38.

[0058] The control module 32 is used to increase the current value flowing through the controllable load when the device is connected to the USB in...

Example Embodiment

[0068] Example 3

[0069] In this embodiment, a wireless routing device is also provided. Fig. 4 is a hardware relationship diagram of a wireless routing device according to an embodiment of the present invention. Such as Figure 4a As shown, the wireless routing device includes: a load detection module 42, a power control module 44, and a wireless communication module 46.

[0070] Among them, such as Figure 4b As shown, the load detection module 42 includes: a controllable load circuit 422, a power acquisition circuit 424, and a power management circuit 426.

[0071] The controllable load circuit 422 is a variable resistor or an integrated circuit that can adjust the current size for connecting with the USB interface and adjusting the current value flowing through the USB interface.

[0072] The power acquisition circuit 424 is an analog-to-digital conversion circuit for detecting the voltage value of the USB interface

[0073] The power management circuit 426 is a power conversion ...

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Abstract

The invention provides a power supply method and device of a USB interface and an antenna router device. The method includes the steps of increasing the value of currents flowing through a controllable load when equipment is connected with the USB interface, wherein the controllable load is connected with the USB interface and used for adjusting the value of the currents flowing through the USB interface; using the current value of the currents flowing through the controllable load as the on-load capacity of the USB interface when it is detected the value of voltages of the USB interface is smaller than the lower limit of power supply voltages of the system in the increasing process of the value of the currents; judging whether the on-load capacity of the USB interface is larger than the minimum current value required in the normal work of the equipment or not; determining the work power of the equipment when the judgment result is yes. Through the method and device, the problem that abnormal shutdown or reboot is caused by the difference of load characteristics between wireless router devices of different specifications in the prior art is solved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for power supply of a USB interface, and a wireless routing device. Background technique [0002] The USB power supply specification stipulated in the USB2.0 standard is divided into the following three ways: ①Standard downstream port (SDP). Typical USB ports of notebooks and desktops need to be enumerated to supply power. They comply with the USB2.0 specification and are identified by the pull-down 15kΩ resistors of the USB data lines D+ and D- to ground. The maximum load current is 2.5mA in suspend, 100mA connected and non-suspend, and 500mA configurable. ② Charging Downstream Port (CDP). Newer USB ports such as desktops and notebooks can provide power before enumeration with a maximum load current of 900 to 1500mA. ③Dedicated charging port (DCP). Adapters, chargers, etc. can supply power without enumeration, and can be identified by shorting D+ and D-...

Claims

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Application Information

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IPC IPC(8): G06F1/26G06F1/28G06F13/40H04L12/10H04L12/771H04W88/08H04L45/60
CPCG06F1/266G06F1/28G06F13/4068H04L12/10H04L45/60H04W88/08G06F2213/0042G06F1/26Y02D30/70
Inventor 姚恩超张建华
Owner ZTE CORP
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