Voltage controlled oscillator
    1.
    发明授权
    Voltage controlled oscillator 失效
    电压控制振荡器

    公开(公告)号:US3736528A

    公开(公告)日:1973-05-29

    申请号:US3736528D

    申请日:1971-11-24

    发明人: ACKER W BREMER G

    IPC分类号: H03K7/08 H03K4/06 H03K3/15

    CPC分类号: H03K4/066

    摘要: A voltage controlled oscillator having a wide tuning range and being stable in frequency and phase as a function of temperature and/or time. The threshold voltage of a comparator is periodically varied abruptly to produce oscillations. The frequency of oscillations is electrically varied by varying the period between the threshold voltage changes.

    摘要翻译: 具有宽的调谐范围并且在频率和相位上作为温度和/或时间的函数而稳定的压控振荡器。 比较器的阈值电压突然地周期性变化以产生振荡。 通过改变阈值电压变化之间的周期来电振荡的频率。

    Voltage controllable crystal digital clock
    2.
    发明授权
    Voltage controllable crystal digital clock 失效
    电压可控晶体数字时钟

    公开(公告)号:US3761840A

    公开(公告)日:1973-09-25

    申请号:US3761840D

    申请日:1972-07-21

    发明人: BREMER G

    IPC分类号: H03K3/283 H03B5/36

    CPC分类号: H03K3/283

    摘要: A TTL (transistor-transistor-logic) compatible voltage controllable crystal digital clock having a relatively wide linear frequency control range with relatively small control voltage range. A quartz crystal in series with a voltage variable reactance is coupled in a regenerative loop of an oscillator circuit. A control voltage varies the capacitance of the voltage variable reactance resulting in a phase shift around the regenerative loop and changing the frequency of oscillation of the circuit.

    摘要翻译: TTL(晶体管 - 晶体管 - 逻辑)兼容的电压可控晶体数字时钟具有相对较宽的线性频率控制范围,具有相对较小的控制电压范围。 与电压可变电抗串联的石英晶体耦合在振荡器电路的再生环路中。 控制电压改变电压可变电抗的电容,导致在再生环路周围的相移并改变电路的振荡频率。