Sawtooth generator having a wide frequency variation range

Details Sawtooth generator having a wide frequency variation range Sawtooth generator having a wide frequency variation range

1975-09-10

1976-10-12

Miller, Jr., Stanley D.

Oscillators

Solid state active element oscillator

Transistors

307228, H03K 326, H03K 408

Patent

active

039861430

ABSTRACT:
An improved sawtooth generator of the type in which a capacitor is charged slowly from a constant current source and discharged rapidly via a circuit including first and second mutually complementary transistors with the first transistor having its emitter connected to the capacitor and controlled by the capacitor voltage, its base connected to a first reference voltage and to the collector of the second transistor, and its collector connected to the base of the second transistor, and with the emitter of the second transistor being connected to ground. A wide frequency variation range for the above sawtooth generator is realized by the provision of a complementary auxiliary pair of transistors including a third and a fourth transistor. The third transistor has its base connected to the emitter of the first transistor, its collector connected to the base of the fourth transistor and its emitter connected to a second reference voltage, while the fourth transistor has its collector connected to the collector of the first transistor and its emitter connected to ground.

REFERENCES:
patent: 3015784 (1962-01-01), Cirone
patent: 3144620 (1964-08-01), Raillard
patent: 3225310 (1965-12-01), Stratton et al.
patent: 3463937 (1969-08-01), Taylor
patent: 3803516 (1974-04-01), Wilcox

Affiliated with

Also associated with

Rating

Sawtooth generator having a wide frequency variation range does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sawtooth generator having a wide frequency variation range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sawtooth generator having a wide frequency variation range will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-946343