Voltage controlled oscillating circuit

Details Voltage controlled oscillating circuit Voltage controlled oscillating circuit

2005-08-23

2005-08-23

Mis, David (Department: 2817)

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

C331S1170FE, C257S595000, C257S599000

Reexamination Certificate

active

06933796

ABSTRACT:
A voltage controlled oscillating circuit operable to output a variable frequency, includes a variable capacitance element with the variable frequency varying with a variation in capacitance of the variable capacitance element. The variable capacitance element is provided by a bipolar transistor. The capacitance of the variable capacitance element is achieved by combining the capacitance by the PN junction between the emitter layer and the base layer and capacitance formed by the PN junction between the base layer and the collector layer in a bipolar transistor, and is controlled by a voltage applied between the emitter layer and the collector layer of the bipolar transistor.

REFERENCES:
patent: 2570938 (1951-10-01), Goodrich, Jr.
patent: 4191899 (1980-03-01), Tomczak et al.
patent: 4303894 (1981-12-01), Akazawa
patent: 2002/0093377 (2002-07-01), Sakuno

Affiliated with

Also associated with

Rating

Voltage controlled oscillating circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage controlled oscillating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage controlled oscillating circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3523469