Low power balanced Colpitts oscillator with improved...

Details Low power balanced Colpitts oscillator with improved... Low power balanced Colpitts oscillator with improved...

2006-07-04

2006-07-04

Mis, David (Department: 2817)

Oscillators

Plural oscillators

C331S1160FE, C331S159000

Reexamination Certificate

active

07071788

ABSTRACT:
A low power balanced Colpitts oscillator circuit with improved negative resistance. The oscillator circuit comprises two cross-coupled Colpitts oscillators with a crystal oscillator connected between the two oscillators. A single current source can be used for both Colpitts oscillators since only one Colpitts needs a current source at a time. Using a single current source cuts the power consumption in half. Alternatively, a transistor in each Colpitts oscillator can act as a current source, which is turned on or off depending on the state of the Colpitts transistor. The two current sources are biased at a common level and matched to ensure the circuit remains symmetrical. An additional benefit of the present invention is that the negative resistance is directly improved.

REFERENCES:
patent: 2494321 (1950-01-01), Usselman
patent: 3581235 (1971-05-01), Siu

Affiliated with

Also associated with

Rating

Low power balanced Colpitts oscillator with improved... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low power balanced Colpitts oscillator with improved..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low power balanced Colpitts oscillator with improved... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3554717