Systems and methods for an adaptive bias circuit for a differential power amplifier
    4.
    发明授权
    Systems and methods for an adaptive bias circuit for a differential power amplifier 有权
    用于差分功率放大器的自适应偏置电路的系统和方法

    公开(公告)号:US07944293B2

    公开(公告)日:2011-05-17

    申请号:US12620462

    申请日:2009-11-17

    IPC分类号: H03F3/68

    摘要: Systems and methods for providing an adaptive bias circuit that may include a differential amplifier, low-pass filter, and common source amplifier or common emitter amplifier. The adaptive bias circuit may generate an adaptive bias output signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit may increase the bias voltage or bias current of the adaptive bias output signal. A power amplifier (e.g., a differential amplifier) may be biased according to the adaptive bias output signal in order to reduce current consumption at low power operation levels.

    摘要翻译: 用于提供可包括差分放大器,低通滤波器和公共源放大器或公共发射极放大器的自适应偏置电路的系统和方法。 自适应偏置电路可以根据输入信号功率电平产生自适应偏置输出信号。 随着输入功率电平上升,自适应偏置电路可以增加自适应偏置输出信号的偏置电压或偏置电流。 可以根据自适应偏置输出信号偏置功率放大器(例如,差分放大器),以便在低功率操作电平下减少电流消耗。

    SYSTEMS AND METHODS FOR AN ADAPTIVE BIAS CIRCUIT FOR A DIFFERENTIAL POWER AMPLIFIER
    8.
    发明申请
    SYSTEMS AND METHODS FOR AN ADAPTIVE BIAS CIRCUIT FOR A DIFFERENTIAL POWER AMPLIFIER 有权
    用于差分功率放大器的自适应偏置电路的系统和方法

    公开(公告)号:US20100148871A1

    公开(公告)日:2010-06-17

    申请号:US12620462

    申请日:2009-11-17

    IPC分类号: H03F3/45

    摘要: Systems and methods for providing an adaptive bias circuit that may include a differential amplifier, low-pass filter, and common source amplifier or common emitter amplifier. The adaptive bias circuit may generate an adaptive bias output signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit may increase the bias voltage or bias current of the adaptive bias output signal. A power amplifier (e.g., a differential amplifier) may be biased according to the adaptive bias output signal in order to reduce current consumption at low power operation levels.

    摘要翻译: 用于提供可包括差分放大器,低通滤波器和公共源放大器或公共发射极放大器的自适应偏置电路的系统和方法。 自适应偏置电路可以根据输入信号功率电平产生自适应偏置输出信号。 随着输入功率电平上升,自适应偏置电路可以增加自适应偏置输出信号的偏置电压或偏置电流。 可以根据自适应偏置输出信号偏置功率放大器(例如,差分放大器),以便在低功率操作电平下减少电流消耗。