Feedback amplifier
    21.
    发明授权
    Feedback amplifier 有权
    反馈放大器

    公开(公告)号:US09537458B2

    公开(公告)日:2017-01-03

    申请号:US14666163

    申请日:2015-03-23

    CPC classification number: H03G1/0088 H03F1/083 H03F3/08 H03F2200/153 H03G3/12

    Abstract: Provided herein is a feedback amplifier including an amplifier circuit configured to amplify an input signal input from an input terminal and output the amplified input signal to an output terminal; a feedback circuit configured to apply a feedback resistance value to a signal output to the output terminal, and to control a gain of the amplifier circuit by adjusting the input signal by a bias voltage applied with a feedback resistance value determined; a packet signal sensor configured to generate a fixed resistance control signal for controlling a fixed resistance value included in the feedback resistance value through a comparison between the output from the output terminal with a minimum signal level; and a fixed resistance controller configured to control the fixed resistance value included in the feedback resistance value in response to the fixed resistance control signal.

    Abstract translation: 本文提供了一种反馈放大器,包括:放大器电路,被配置为放大从输入端输入的输入信号,并将放大的输入信号输出到输出端; 反馈电路,被配置为向输出端子输出的信号施加反馈电阻值,并且通过利用所确定的反馈电阻值施加的偏置电压来调节所述输入信号来控制所述放大器电路的增益; 分组信号传感器,被配置为通过比较来自所述输出端子的输出与最小信号电平之间的比较,产生用于控制所述反馈电阻值中包括的固定电阻值的固定电阻控制信号; 以及固定电阻控制器,其被配置为响应于所述固定电阻控制信号来控制包括在所述反馈电阻值中的所述固定电阻值。

    Automatic gain control feedback amplifier
    24.
    发明授权
    Automatic gain control feedback amplifier 有权
    自动增益控制反馈放大器

    公开(公告)号:US08841969B2

    公开(公告)日:2014-09-23

    申请号:US13670016

    申请日:2012-11-06

    CPC classification number: H03G1/0082 H03G1/0088 H03G3/3084

    Abstract: Disclosed is an automatic gain control feedback amplifier that can arbitrarily control a gain even when a difference in input signal is large. The automatic gain control feedback amplifier includes: an amplification circuit unit configured to amplify voltage input from an input terminal and output the amplified voltage to an output terminal; a feedback circuit unit connected between the input terminal and the output terminal and including a feedback resistor unit of which a total resistance value is determined by one or more control signals and a feedback transistor connected to the feedback resistor unit in parallel; and a bias circuit unit configured to supply predetermined bias voltage to the feedback transistor.

    Abstract translation: 公开了一种自动增益控制反馈放大器,其即使当输入信号的差异大时也可以任意地控制增益。 自动增益控制反馈放大器包括:放大电路单元,被配置为放大从输入端输入的电压,并将放大的电压输出到输出端; 连接在输入端子和输出端子之间的反馈电路单元,包括反馈电阻器单元,其总电阻值由一个或多个控制信号确定,反馈晶体管并联连接到反馈电阻器单元; 以及偏置电路单元,被配置为向所述反馈晶体管提供预定的偏置电压。

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