Low distortion switching amplifier circuits and methods
    1.
    发明授权
    Low distortion switching amplifier circuits and methods 有权
    低失真开关放大器电路和方法

    公开(公告)号:US07579910B2

    公开(公告)日:2009-08-25

    申请号:US11968379

    申请日:2008-01-02

    IPC分类号: H03F3/217

    摘要: Embodiments of the present invention include switching amplifier circuits and methods. In one embodiment, the present invention includes an low distortion method of driving a switching amplifier comprising generating a first pulse width modulated signal on a first terminal, generating a second pulse width modulated signal on a second terminal, and delaying one of the first or second signals. In one embodiment, the modulated signals and delay result in pulse trains near zero crossings to reduce crossover distortion.

    摘要翻译: 本发明的实施例包括开关放大器电路和方法。 在一个实施例中,本发明包括驱动开关放大器的低失真方法,包括在第一端上产生第一脉宽调制信号,在第二端产生第二脉宽调制信号,并延迟第一或第二 信号。 在一个实施例中,调制信号和延迟导致在零交叉附近的脉冲串,以减少交叉失真。

    Low Distortion Switching Amplifier Circuits and Methods
    2.
    发明申请
    Low Distortion Switching Amplifier Circuits and Methods 有权
    低失真开关放大器电路和方法

    公开(公告)号:US20080174366A1

    公开(公告)日:2008-07-24

    申请号:US11968379

    申请日:2008-01-02

    IPC分类号: H03F3/217

    摘要: Embodiments of the present invention include switching amplifier circuits and methods. In one embodiment, the present invention includes an low distortion method of driving a switching amplifier comprising generating a first pulse width modulated signal on a first terminal, generating a second pulse width modulated signal on a second terminal, and delaying one of the first or second signals. In one embodiment, the modulated signals and delay result in pulse trains near zero crossings to reduce crossover distortion.

    摘要翻译: 本发明的实施例包括开关放大器电路和方法。 在一个实施例中,本发明包括驱动开关放大器的低失真方法,包括在第一端上产生第一脉宽调制信号,在第二端产生第二脉宽调制信号,并延迟第一或第二 信号。 在一个实施例中,调制信号和延迟导致在零交叉附近的脉冲串,以减少交叉失真。

    Low distortion switching amplifier circuits and methods
    3.
    发明申请
    Low distortion switching amplifier circuits and methods 有权
    低失真开关放大器电路及方法

    公开(公告)号:US20080161953A1

    公开(公告)日:2008-07-03

    申请号:US11890813

    申请日:2007-08-07

    IPC分类号: G06F17/00

    摘要: Embodiments of the present invention include switching amplifier circuits and methods. In one embodiment, the present invention includes a low distortion method of driving a switching amplifier comprising modulating an audio input signal to produce a half-wave rectified pulse-width modulated signal and a complementary half-wave rectified pulse-width modulated signal. These signals may be amplified in a power amplifier and combined in a feedback circuit to generate a first feedback signal and a second feedback signal, which may be coupled the inputs of a modulator for controlling the output signal.

    摘要翻译: 本发明的实施例包括开关放大器电路和方法。 在一个实施例中,本发明包括驱动开关放大器的低失真方法,包括调制音频输入信号以产生半波整流脉宽调制信号和互补半波整流脉宽调制信号。 这些信号可以在功率放大器中被放大并组合在反馈电路中以产生第一反馈信号和第二反馈信号,其可耦合调制器的输入以控制输出信号。

    Low distortion switching amplifier circuits and methods
    4.
    发明授权
    Low distortion switching amplifier circuits and methods 有权
    低失真开关放大器电路及方法

    公开(公告)号:US08111846B2

    公开(公告)日:2012-02-07

    申请号:US11890813

    申请日:2007-08-07

    IPC分类号: H02B1/00

    摘要: Embodiments of the present invention include switching amplifier circuits and methods. In one embodiment, the present invention includes a low distortion method of driving a switching amplifier comprising modulating an audio input signal to produce a half-wave rectified pulse-width modulated signal and a complementary half-wave rectified pulse-width modulated signal. These signals may be amplified in a power amplifier and combined in a feedback circuit to generate a first feedback signal and a second feedback signal, which may be coupled the inputs of a modulator for controlling the output signal.

    摘要翻译: 本发明的实施例包括开关放大器电路和方法。 在一个实施例中,本发明包括驱动开关放大器的低失真方法,包括调制音频输入信号以产生半波整流脉宽调制信号和互补半波整流脉宽调制信号。 这些信号可以在功率放大器中被放大并组合在反馈电路中以产生第一反馈信号和第二反馈信号,其可耦合调制器的输入以控制输出信号。