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发明授权
CN103686532B 音频装置及其输出方法 失效 - 权利终止

音频装置及其输出方法
摘要：
提供一种音频装置及其输出方法。所述音频装置包括：包络检测器，配置为检测输入的音频信号的包络；供电器，包括线性供电器（LPS）和开关模式供电器（SMPS）；放大器，配置为放大输入的音频信号；输出单元，配置为输出由放大器放大的音频信号；控制器，配置为将检测到的包络的电压电平与预设电平进行比较，基于比较结果选择LPS和SMPS之一，并控制供电器从选择的LPS和SMPS之一向放大器供电。
摘要（英）：

An audio device and an output method thereof are provided. The audio device includes: an envelope detector configured to detect an envelope of an input audio signal; a power supply which includes a linear power supply (LPS) and a switching-mode power supply (SMPS); an amplifier configured to amplify the input audio signal; an output unit configured to output the audio signal amplified by the amplifier; and a controller configured to compare a voltage level of the detected envelope with a preset level, select one of the LPS and the SMPS based on a result of the comparison, and control the power supply to supply power from the selected one of the LPS and the SMPS to the amplifier.

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