发明名称 |
METHOD AND APPARATUS FOR CONTROLLING POWER SUPPLY OF AUDIO AMPLIFIER |
摘要 |
A method of controlling power supply voltage of an audio amplifier delays an input audio signal; estimates, with a digital signal processor, an audio output level of the delayed input audio signal based on correlations between the delayed input audio signal level and audio level change factors; sets a value of power supply voltage supplied to a power switching circuit unit in correspondence with the estimated audio output level prior to outputting the delayed input audio signal on which the estimated audio output level is based; and amplifies the delayed audio input signal to provide an audio output signal by variably controlling the power supply voltage supplied to the power switching circuit unit according to the set value of power supply voltage.
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申请公布号 |
US2010321116(A1) |
申请公布日期 |
2010.12.23 |
申请号 |
US20100815010 |
申请日期 |
2010.06.14 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM HAN-KI;PARK HAE-KWANG |
分类号 |
H03F3/04 |
主分类号 |
H03F3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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