Compensation of transient frequency drift in oscillator circuits

Oscillators – L-c type oscillators

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

331177V, 331175, H03L 300

Patent

active

054185033

ABSTRACT:
A compensation circuit including resistors, capacitors and a varactor diode powered simultaneously by the same voltage source applied to a voltage controlled oscillator for reducing deviation from a desired oscillator output frequency on power-up. When power is applied, an exponentially varying voltage is applied to the varactor diode changing its capacitance in such a manner as to change the oscillator frequency in the opposite direction to its natural drift tendency, thus producing a substantially constant output frequency over the period of interest.

REFERENCES:
patent: 3619803 (1971-11-01), Klein
patent: 3993958 (1976-11-01), Gutsogeorge
patent: 4521918 (1985-06-01), Challen
patent: 4533881 (1985-08-01), Monett
patent: 4546329 (1985-10-01), Unger
patent: 4602222 (1986-07-01), Wynn
patent: 4633197 (1986-12-01), Vanderpool, II
patent: 4736169 (1988-04-01), Weaver et al.
patent: 4748425 (1988-05-01), Heck
patent: 4810974 (1989-03-01), Hulbert et al.
patent: 4835492 (1989-05-01), Ikuhara et al.
patent: 4926144 (1990-05-01), Bell
patent: 4970472 (1990-11-01), Kennedy et al.
patent: 4978930 (1990-12-01), Suter
patent: 5036295 (1991-07-01), Kamitami

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Compensation of transient frequency drift in oscillator circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compensation of transient frequency drift in oscillator circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compensation of transient frequency drift in oscillator circuits will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2142782

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.