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Method for improving efficiency of audio power amplifier and mobile phone using the same

A technology of audio power and amplifier, which is applied in a method and the field of mobile phones using the method, can solve the problems of short use time and affect the power consumption of mobile phones, and achieve the effect of prolonging the playing time

Inactive Publication Date: 2011-03-23
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

In practical applications, the maximum efficiency of the class AB audio power amplifier is only 78.5%. When the mobile phone is playing music, the efficiency is generally only below 50%, and the efficiency will directly affect the power consumption of the mobile phone. The shorter the time of use, therefore, it is necessary to improve the efficiency of the audio power amplifier to reduce the power consumption of the mobile phone

Method used

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  • Method for improving efficiency of audio power amplifier and mobile phone using the same
  • Method for improving efficiency of audio power amplifier and mobile phone using the same
  • Method for improving efficiency of audio power amplifier and mobile phone using the same

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Embodiment Construction

[0018] Regarding the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings, which are provided for reference and illustration only, and are not intended to limit the present invention.

[0019] See figure 1 , figure 1 A schematic structural view of the mobile phone of the present invention is shown. Such as figure 1 As shown, the mobile phone disclosed in the present invention includes: a baseband processing module 101 , an audio power amplifier 103 and a power management module 102 .

[0020] The baseband processing module 101 can output the audio signal to the audio power amplifier 103 , the audio power amplifier 103 amplifies the audio signal, and the amplified audio signal can further drive the speaker 104 to produce sound. . The power management module 102 is used for providing a variable working voltage for the audio power amplifier 103 according to the volume level selected by the user. ...

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Abstract

The invention provides a mobile phone, which comprises a base band processing module, an audio power amplifier and a power supply management module, wherein the base band processing module outputs an audio signal; the audio power amplifier receives the audio signal and amplifies the audio signal; and the power supply management module provides variable working voltage for the audio power amplifier according to a volume level selected by a user. The invention further provides a method for improving the efficiency of the audio power amplifier. By the mode, the technical scheme of the invention can obviously reduce the integral power consumption of the mobile phone in the process of playing music and prolong the playing time.

Description

【Technical field】 [0001] The invention relates to the field of consumer electronics, in particular to a method for improving the efficiency of an audio power amplifier and a mobile phone using the method. 【Background technique】 [0002] Music mobile phones are becoming more and more popular. At present, almost all mobile phones in the market are equipped with external speakers, and external speakers need special drivers. In order to ensure the quality of sound, generally AB audio power amplifiers are used. In practical applications, the maximum efficiency of the class AB audio power amplifier is only 78.5%. When the mobile phone is playing music, the efficiency is generally only below 50%, and the efficiency will directly affect the power consumption of the mobile phone. The shorter the time of use, therefore, it is necessary to improve the efficiency of the audio power amplifier to reduce the power consumption of the mobile phone. 【Content of invention】 [0003] The tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04M1/73H03F1/02H04M1/7243
CPCY02D30/70
Inventor 顾建良
Owner HUIZHOU TCL MOBILE COMM CO LTD
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