Amplifier circuit having dynamically biased configuration
    1.
    发明授权
    Amplifier circuit having dynamically biased configuration 有权
    具有动态偏置配置的放大器电路

    公开(公告)号:US07733181B2

    公开(公告)日:2010-06-08

    申请号:US12154648

    申请日:2008-05-23

    IPC分类号: H03F3/45

    摘要: Methods and corresponding systems for amplifying an input signal include inputting first and second differential input signals into first and second circuit legs, respectively, wherein the first circuit leg includes a first transistor coupled in series with a first variable current source, and wherein the second circuit leg includes a second transistor coupled in series with a second variable current source. The first and second variable current sources are dynamically set to provide first and second bias currents in response to the first and second differential input signals, wherein the first bias current is set inversely proportional to the second bias current. The first and second bias currents are sunk in the first and second circuit legs, respectively. First and second differential output signals are output from the first and second circuit legs, respectively.

    摘要翻译: 用于放大输入信号的方法和相应系统包括分别将第一和第二差分输入信号输入到第一和第二电路支路,其中第一电路支路包括与第一可变电流源串联耦合的第一晶体管,并且其中第二电路 腿包括与第二可变电流源串联耦合的第二晶体管。 动态地设置第一和第二可变电流源以响应于第一和第二差分输入信号提供第一和第二偏置电流,其中第一偏置电流与第二偏置电流成反比地设定。 第一和第二偏置电流分别在第一和第二电路支路中沉没。 第一和第二差分输出信号分别从第一和第二电路支路输出。

    Amplifier circuit having dynamically biased configuration
    2.
    发明申请
    Amplifier circuit having dynamically biased configuration 有权
    具有动态偏置配置的放大器电路

    公开(公告)号:US20090289716A1

    公开(公告)日:2009-11-26

    申请号:US12154648

    申请日:2008-05-23

    IPC分类号: H03F3/45

    摘要: Methods and corresponding systems for amplifying an input signal include inputting first and second differential input signals into first and second circuit legs, respectively, wherein the first circuit leg includes a first transistor coupled in series with a first variable current source, and wherein the second circuit leg includes a second transistor coupled in series with a second variable current source. The first and second variable current sources are dynamically set to provide first and second bias currents in response to the first and second differential input signals, wherein the first bias current is set inversely proportional to the second bias current. The first and second bias currents are sunk in the first and second circuit legs, respectively. First and second differential output signals are output from the first and second circuit legs, respectively.

    摘要翻译: 用于放大输入信号的方法和相应系统包括分别将第一和第二差分输入信号输入到第一和第二电路支路,其中第一电路支路包括与第一可变电流源串联耦合的第一晶体管,并且其中第二电路 腿包括与第二可变电流源串联耦合的第二晶体管。 动态地设置第一和第二可变电流源以响应于第一和第二差分输入信号提供第一和第二偏置电流,其中第一偏置电流与第二偏置电流成反比地设定。 第一和第二偏置电流分别在第一和第二电路支路中沉没。 第一和第二差分输出信号分别从第一和第二电路支路输出。