Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators
    1.
    发明授权
    Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators 有权
    用于频率调制的方法和电路,可降低开关稳压器的频谱噪声

    公开(公告)号:US07362191B2

    公开(公告)日:2008-04-22

    申请号:US10835693

    申请日:2004-04-29

    IPC分类号: H03B29/00 H02M7/00

    摘要: The present invention comprises methods and circuits for spread spectrum frequency modulation that reduce peak spectral noise at the outputs or inputs of switching regulators. More specifically, the present invention modulates the operating frequency of the switching regulator in accordance with a frequency modulation waveform having a shape coordinated to a peak noise amplitude waveform that describes the correlation between the operating frequency of a switching regulator and the peak noise amplitude at the regulator's input or output absent spread spectrum frequency modulation.

    摘要翻译: 本发明包括用于扩展频谱调制的方法和电路,其减少开关调节器的输出或输入处的峰值频谱噪声。 更具体地,本发明根据具有与峰值噪声幅度波形协调的形状的频率调制波形来调制开关调节器的工作频率,该峰值噪声幅度波形描述了开关调节器的工作频率与峰值噪声振幅之间的相关性 调节器的输入或输出没有扩频调频。

    Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators
    2.
    发明申请
    Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators 有权
    用于频率调制的方法和电路,可降低开关稳压器的频谱噪声

    公开(公告)号:US20050243894A1

    公开(公告)日:2005-11-03

    申请号:US10835693

    申请日:2004-04-29

    摘要: The present invention comprises methods and circuits for spread spectrum frequency modulation that reduce peak spectral noise at the outputs or inputs of switching regulators. More specifically, the present invention modulates the operating frequency of the switching regulator in accordance with a frequency modulation waveform having a shape coordinated to a peak noise amplitude waveform that describes the correlation between the operating frequency of a switching regulator and the peak noise amplitude at the regulator's input or output absent spread spectrum frequency modulation.

    摘要翻译: 本发明包括用于扩展频谱调制的方法和电路,其减少开关调节器的输出或输入处的峰值频谱噪声。 更具体地,本发明根据具有与峰值噪声幅度波形协调的形状的频率调制波形来调制开关调节器的工作频率,该峰值噪声幅度波形描述了开关调节器的工作频率与峰值噪声振幅之间的相关性 调节器的输入或输出没有扩频调频。