High frequency phase detector using FET bridge

Details High frequency phase detector using FET bridge High frequency phase detector using FET bridge

1988-12-02

1989-09-05

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Transistorized controls

307511, 307514, 328155, H03L 700

Patent

active

048642541

ABSTRACT:
A phase detector includes a bridge of FETs which are simultaneously rendered conductive by pulses of a reference signal having a very small duty cycle. A higher frequency signal, whose phase in relation to the reference signal is to be detected, is supplied to a gate of one of the FETs. A bridge output signal is low pass filtered and differentially amplified to produce a phase detector output signal. The phase detector output signal can be used directly to control the frequency of a voltage controlled oscillator which produces the higher frequency signal.

REFERENCES:
patent: 3591854 (1971-07-01), Cole
patent: 4659949 (1987-04-01), Okanobu

Affiliated with

Also associated with

Rating

High frequency phase detector using FET bridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High frequency phase detector using FET bridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency phase detector using FET bridge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-245844