Integrator circuit and low frequency two phase oscillator incorporating same
    5.
    发明授权
    Integrator circuit and low frequency two phase oscillator incorporating same 失效
    集成电路和低频两相振荡器相结合

    公开(公告)号:US3906381A

    公开(公告)日:1975-09-16

    申请号:US43627974

    申请日:1974-01-24

    Inventor: BENNETT ALLAN I

    CPC classification number: H03B5/20 G06G7/186 H03B5/04 H03B27/00 H03B2200/0078

    Abstract: The present disclosure provides a novel integrator circuit including an operational amplifier having first and second input terminals, said first input terminal being adapted for connection to a voltage source and including a resistor between said source and terminal. A first negative feedback loop including a capacitor is electrically connected between the output of the amplifier and the first terminal. A second positive frequency independent feedback loop is electrically connected between the output of the amplifier and the second input terminal. The second feedback loop preferably includes a voltage divider having a temperature variable resistor and a pair of independent heaters for varying the resistance of said resistor. The low frequency oscillator includes a pair of the novel integrator circuits and a resistive inverter circuit electrically connected together in cascade having ganged gain control following each integrator.

    Abstract translation: 本公开提供了一种新颖的积分器电路,其包括具有第一和第二输入端的运算放大器,所述第一输入端适于连接到电压源并且在所述源极和端子之间包括电阻器。 包括电容器的第一负反馈回路电连接在放大器的输出端与第一端子之间。 第二正频率无关反馈回路电连接在放大器的输出端和第二输入端子之间。 第二反馈回路优选地包括具有温度可变电阻器的分压器和用于改变所述电阻器的电阻的一对独立加热器。

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