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Energy-saving control method of audio power amplifier based on android system

A technology for energy-saving control and audio function, applied in transducer circuits, improving amplifiers to reduce temperature/power supply voltage changes, sensor components, etc. Achieve the effect of reducing energy consumption and working temperature, saving system energy consumption and reducing working temperature

Active Publication Date: 2018-07-10
XIAMEN YAXON NETWORKS CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an android-based audio power amplifier energy-saving control method, which solves the problems of high power consumption, high heat and difficult control of the power switch of the power amplifier

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  • Energy-saving control method of audio power amplifier based on android system

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Embodiment Construction

[0038] An audio power amplifier energy-saving control method based on an android system, the android system includes an application program, an audio codec and a power amplifier, a kernel audio processing module, and an audio multi-channel selector,

[0039] The application program initiates audio playback, stop, pause or resume operations; the application program refers to various application programs installed in the android system;

[0040] The kernel audio processing module is responsible for performing audio function interface calls, obtaining audio data, configuring its internal DMA module to work, sending audio data to the audio codec, and controlling the power amplifier; the DMA module, The English full name is Direct Memory Access, which means direct memory access.

[0041] The audio codec: receiving audio data, the audio data is a digital signal, the audio codec converts the audio digital signal into an audio analog signal, and sends it to the audio multiplexer;

[...

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Abstract

The present invention provides an audio power amplifier energy-saving control method based on an android system, including an audio start playback step and an audio stop playback step. In the audio start playback step, the current audio event type is judged by a kernel audio processing module. If the audio starts or stops, recovery Or suspend the release event, then open the power amplifier, otherwise turn off the power supply of the power amplifier, judge the current audio event type by the kernel audio processing module in the audio stop playing step, if it is an audio stop or hang or pause event, then turn off the power amplifier power, otherwise turn on the power of the power amplifier. The present invention has the following advantages: saving system energy consumption, reducing the operating temperature of the device, maximizing the reduction of power consumption and operating temperature of the power amplifier, preventing damage to the power amplifier, simplifying the design of the application program framework and realizing the automatic operation of the code in the kernel , so that the system truly achieves the effect of intelligent control of the power amplifier.

Description

technical field [0001] The invention relates to an audio power amplifier energy-saving control method based on an android system. Background technique [0002] The power amplifier (full name: power amplifier) ​​is a hidden energy-consuming component, and currently few products or end systems control it. The disadvantage of not managing the power amplifier is obvious: on the one hand, the power amplifier is an energy-consuming component, and if it is not managed, it will consume energy in real time; on the other hand, the power amplifier is a very important heat source, especially if the heat source is placed The problem of high operating temperature of the device becomes particularly prominent when it is enclosed in a small embedded device. Therefore, minimizing unnecessary work of energy-consuming components is a design goal of every embedded product. [0003] The difficulty to improve this shortcoming is that although there are some conventional methods at present, such ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00H03F1/30
Inventor 李培明杨磊范少卓
Owner XIAMEN YAXON NETWORKS CO LTD
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