发明名称 |
Circuit and method for reducing noise in class D amplifiers |
摘要 |
A circuit for reducing noise in Class D amplifiers has a power stage voltage control means (17, 21, 22) responsive to defined signal conditions of the audio signal input (1). The power stage voltage control means is operative to lower the voltage at the supply voltage input (31) of the amplifier's switching power output stage (30) upon the detection of a defined condition in the audio signal input such that the Class-D amplifier operates at reduced voltage (idles) during the defined audio input signal condition. |
申请公布号 |
US8416017(B2) |
申请公布日期 |
2013.04.09 |
申请号 |
US20100907918 |
申请日期 |
2010.10.19 |
申请人 |
KOHUT PAUL;WINSHIP PETER L.;KOWALCYZK PETER;METZ STEVEN;KEOWN KURT;MEYER SOUND LABORATORIES, INCORPORATED |
发明人 |
KOHUT PAUL;WINSHIP PETER L.;KOWALCYZK PETER;METZ STEVEN;KEOWN KURT |
分类号 |
H03F3/38;H03F3/68 |
主分类号 |
H03F3/38 |
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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