AMPLIFIER CIRCUIT FOR RF SYSTEM
    1.
    发明公开
    AMPLIFIER CIRCUIT FOR RF SYSTEM 失效
    用于RF系统的放大器电路

    公开(公告)号:EP0797868A1

    公开(公告)日:1997-10-01

    申请号:EP96928055.0

    申请日:1996-08-05

    Applicant: MOTOROLA, INC.

    IPC: H03F1

    Abstract: An amplifier circuit (100) for use in a radio frequency system. The circuit is comprised of a first amplifier (22) having a first input (20) receiving a first signal (16) and a first output (24). A first coupler (18) samples the first input (20) of the first amplifier (22) and a second coupler (26) samples the first output (24) of the first amplifier (22). A third coupler (36) then compares an output of the second coupler (28) and an output of the first coupler (34), producing an error signal (38) which is substantially indicative of the difference between the first input (20) and the first output (24). A fourth coupler (44) combines the error signal (38) with a second signal (48) to produce a composite signal (50), the second signal (48) at least partially correlated with the first signal (16) received by the first input (20) of the first amplifier. A second amplifier (52) is responsive to the composite signal (50) and produces a second output (54).

    Abstract translation: 一种用于射频系统的放大器电路(100)。 该电路包括具有接收第一信号(16)的第一输入端(20)和第一输出端(24)的第一放大器(22)。 第一耦合器(18)对第一放大器(22)的第一输入(20)进行采样,而第二耦合器(26)对第一放大器(22)的第一输出(24)进行采样。 然后第三耦合器(36)比较第二耦合器(28)的输出和第一耦合器(34)的输出,产生基本上表示第一输入(20)和 第一个输出(24)。 第四耦合器(44)将误差信号(38)与第二信号(48)组合以产生复合信号(50),第二信号(48)至少部分与由第一信号 第一放大器的输入(20)。 第二放大器(52)响应复合信号(50)并产生第二输出(54)。

    AMPLIFIER CIRCUIT FOR RF SYSTEM
    2.
    发明申请
    AMPLIFIER CIRCUIT FOR RF SYSTEM 审中-公开
    射频系统放大电路

    公开(公告)号:WO1997015112A1

    公开(公告)日:1997-04-24

    申请号:PCT/US1996012725

    申请日:1996-08-05

    Applicant: MOTOROLA INC.

    Abstract: An amplifier circuit (100) for use in a radio frequency system. The circuit is comprised of a first amplifier (22) having a first input (20) receiving a first signal (16) and a first output (24). A first coupler (18) samples the first input (20) of the first amplifier (22) and a second coupler (26) samples the first output (24) of the first amplifier (22). A third coupler (36) then compares an output of the second coupler (28) and an output of the first coupler (34), producing an error signal (38) which is substantially indicative of the difference between the first input (20) and the first output (24). A fourth coupler (44) combines the error signal (38) with a second signal (48) to produce a composite signal (50), the second signal (48) at least partially correlated with the first signal (16) received by the first input (20) of the first amplifier. A second amplifier (52) is responsive to the composite signal (50) and produces a second output (54).

    Abstract translation: 一种用于射频系统的放大器电路(100)。 电路包括具有接收第一信号(16)和第一输出(24)的第一输入(20)的第一放大器(22)。 第一耦合器(18)对第一放大器(22)的第一输入端(20)进行采样,第二耦合器(26)采样第一放大器(22)的第一输出端(24)。 第三耦合器(36)然后比较第二耦合器(28)的输出和第一耦合器(34)的输出,产生误差信号(38),该误差信号基本上指示第一输入(20)和 第一个输出(24)。 第四耦合器(44)将误差信号(38)与第二信号(48)组合以产生复合信号(50),所述第二信号(48)至少部分地与第一信号(16)接收的第一信号 第一放大器的输入(20)。 第二放大器(52)响应于复合信号(50)并产生第二输出(54)。

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