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Power supply control method and mobile terminal

A mobile terminal, power supply control technology, applied in the field of communication, can solve problems such as capacitive sound

Active Publication Date: 2018-03-27
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a power supply control method and a mobile terminal to solve the problem in the prior art that capacitive noise is prone to occur when the mobile terminal is connected to a WiFi network

Method used

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  • Power supply control method and mobile terminal
  • Power supply control method and mobile terminal
  • Power supply control method and mobile terminal

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] According to an aspect of the embodiments of the present invention, a power supply control method is provided.

[0025] Among them, such as figure 1 As shown, the mobile terminal includes a DC-DC power supply module 101 and a WiFi module 102 , and the DC-DC power supply module 101 supplies power to the WiFi module 102 . Wherein, the working modes of the DC-DC power supply module 101 generally include: PFM (Pulse Frequency Modulation, pulse freq...

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Abstract

The invention provides a power supply control method and a mobile terminal. The power supply control method comprises the following steps: detecting whether a WiFi network is connected, and if the WiFi network is connected, detecting the data transmission rate of the WiFi network; if the data transmission rate of the WiFi network is greater than a predetermined threshold, setting the working modeof a DC-DC power supply module as a pulse width modulation PWM mode or a direct connection BYPASS mode to provide power supply for the WiFi module. In order to avoid the capacitance sound produced inthe working state of the WiFi module to affect the use of the user, the data transmission rate of the WiFi network connected by the mobile terminal is monitored, the power supply mode of the DC-DC power supply module is changed to provide power supply for the WiFi module, so that the WiFi module works in a high frequency state, the ripple voltage is reduced, and the capacitance sound is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a power supply control method and a mobile terminal. Background technique [0002] At present, the hardware circuit design layout of mobile terminals is getting tighter and tighter. In the design process of hardware circuits, some ceramic capacitors with small packages and large values ​​are often used, but the inverse piezoelectric effect of ceramic capacitors with small packages and large values ​​can easily cause capacitance Vibration drives the PCB (Printed Circuit Board, printed circuit board) to vibrate and cause "humming" capacitor sound. Especially when WIFI (WIreless-FIdelity, wireless fidelity, also known as wireless network) is uploaded or downloaded, there will be 100Hz or higher frequency ripple voltage on the power network, and the capacitance sound is loud, within the range of human hearing and hearing. , affecting the user experience. Contents of...

Claims

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Application Information

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IPC IPC(8): H04L12/10H04L12/26H04W24/08
CPCH04L12/10H04L43/0894H04W24/08
Inventor 张潮红陈志刚
Owner VIVO MOBILE COMM CO LTD