Phase detection system using sample and hold technique, and phas

Details Phase detection system using sample and hold technique, and phas Phase detection system using sample and hold technique, and phas

1978-10-27

1980-08-26

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

328134, 328151, 328155, 331 1A, H03B 304

Patent

active

042197848

ABSTRACT:
A phase detector circuit is connected to a sine wave reference during a time interval of one-half cycle of the sine wave to be compared. Phase detection is provided by integrating the inputted sine wave reference during such time interval, and immediately following such accumulation of information, the latter is transferred to a holding circuit. The phase detector is applied to a phase locked loop in which the time intervals are established digitally to control FET devices for the sampling and holding functions.

REFERENCES:
patent: 3717818 (1973-02-01), Herbst
patent: 3740586 (1973-06-01), Banks et al.
patent: 4068181 (1978-01-01), Clark et al.
patent: 4128811 (1978-12-01), Englund, Jr.

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