Controlled oscillator

专利名称：Controlled oscillator发明人：Leopold Albert Harwood申请号：US05/633462申请日：19751119公开号：US04020500A公开日：19770426

摘要：A controlled oscillator suitable for construction largely in integrated circuitform includes an oscillating amplifier stage and a regenerative feedback loop including aresonant frequency determining element coupled to the amplifier stage for providing anoscillatory reference signal. A phase shift network is provided outside the loop forshifting the phase of the oscillatory signal a predetermined amount. A control circuitwhich is supplied with the phase shifted oscillatory signal to produce anti-phase signaloutputs is responsive to control signal representative of the phase and/or frequency of apredetermined reference signal for selecting portions of the anti-phase output signals. Acombining network sums the oscillatory signal and the selected portions from thecontrol circuit to produce a combined signal with a resultant phase which is supplied tothe oscillating amplifier stage for maintaining the oscillatory signal in desired relationwith the reference signal.

申请人：RCA CORPORATION

代理人：Eugene M. Whitacre,Ronald H. Kurdyla

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