Phase-lock loop circuit

Details Phase-lock loop circuit Phase-lock loop circuit

1976-04-02

1977-08-02

Kominski, John

Oscillators

Automatic frequency stabilization using a phase or frequency...

Search sweep of oscillator

331 17, H03B 304

Patent

active

040399664

ABSTRACT:
A conventional phase-lock loop circuit is modified for use at microwave frequencies. The modification includes a low-frequency oscillator connected in the phase-lock loop to sweep the voltage-controlled oscillator through the frequency of the incoming signal thereby ensuring that lock-in is achieved. The oscillator is automatically turned off when "lock-in" is achieved, thereby reducing residual phase error.

REFERENCES:
patent: 2972720 (1961-02-01), Hume
patent: 3775695 (1973-11-01), Hill
patent: 3793594 (1974-02-01), Griswold
patent: 3886455 (1975-05-01), Jonckheere
patent: 3935541 (1976-01-01), Amend et al.

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