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D级音频功率放大器能把音频信号输出到扬声器,与传统的AB级音频功率放大器相比,其效率要高2～3倍。效率的增加使得这些放大器很适合在便携式应用中使用。
Class-D audio power amplifier to the audio signal output to the speaker, compared with the traditional AB-class audio power amplifier, the efficiency of 2 to 3 times higher. The increased efficiency makes these amplifiers ideal for use in portable applications.