Circuit for stabilizing frequency of FET oscillator as output power
varies
    1.
    发明授权
    Circuit for stabilizing frequency of FET oscillator as output power varies 失效
    用于稳定FET振荡器频率的电路作为输出功率变化

    公开(公告)号:US4321563A

    公开(公告)日:1982-03-23

    申请号:US70551

    申请日:1979-08-29

    申请人: Paul Lesartre

    发明人: Paul Lesartre

    IPC分类号: H03B5/12 H03C1/36 H03L5/00

    摘要: A frequency stabilizing device for a FET high-frequency oscillator comprises means for coupling an automatic biasing circuit included in the source-ground connection of the oscillator to a drain voltage supply circuit included in the drain-ground connection of the oscillator to provide simultaneous and oppositely directed variations of the resistance of the automatic biasing circuit and of the value of the drain-ground voltage supplied by the drain voltage supply circuit. A variation of this device can serve as a modulation stage wherein the coupling means comprise a modulating circuit arranged to supply two branches in parallel, each branch comprising a series arrangement of a shaping circuit and an impedance-matching circuit and one of which constitutes the automatic biasing circuit and the other one the drain voltage supply circuit.

    摘要翻译: 用于FET高频振荡器的频率稳定装置包括用于将包括在振荡器的源极 - 接地连接中的自动偏置电路耦合到包括在振荡器的漏极 - 接地连接中的漏极电压电路的装置,以提供同时且相反的 自动偏置电路的电阻的定向变化以及由漏极电压供给电路提供的漏极 - 接地电压的值。 该装置的变体可以用作调制阶段,其中耦合装置包括调制电路,其被布置成并联提供两个分支,每个分支包括整形电路和阻抗匹配电路的串联布置,其中一个构成自动 偏置电路,另一个是漏极电压电路。