发明名称 |
SYSTEM AND METHOD OF SHAPING A POWER SPECTRUM IN PWM AMPLIFIERS |
摘要 |
In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The circuit device further includes a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. The spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.
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申请公布号 |
US2009243745(A1) |
申请公布日期 |
2009.10.01 |
申请号 |
US20080208535 |
申请日期 |
2008.09.11 |
申请人 |
SILICON LABORATORIES INC. |
发明人 |
ALDERSON JEFFREY D.;KHOURY JOHN M.;BEALE RICHARD GALE |
分类号 |
H03K7/08 |
主分类号 |
H03K7/08 |
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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