Combination phase detector voltage doubler and low-pass filter f

Details Combination phase detector voltage doubler and low-pass filter f Combination phase detector voltage doubler and low-pass filter f

1978-01-23

1978-10-24

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

328133, 328155, 331 17, 331 27, 331 36C, 331116R, 331177V, H03B 304

Patent

active

041224043

ABSTRACT:
A phase detector circuit for use in a phase-lock loop is illustrated wherein a voltage pump is incorporated in the phase detector circuit so as to eliminate the utilization of a comparatively high voltage power supply which is normally required to sufficiently frequency modulate the variable frequency oscillator incorporated in most phase-lock loops.

REFERENCES:
patent: 3609408 (1971-09-01), Motisher et al.
patent: 4055814 (1977-10-01), Abraham et al.

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