-
公开(公告)号:US3736528A
公开(公告)日:1973-05-29
申请号:US3736528D
申请日:1971-11-24
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。
-
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
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。
-