Signal amplifying circuit

Details Signal amplifying circuit Signal amplifying circuit

1975-02-06

1977-05-03

Rolinec, Rudolph V.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330 18, 330 19, 330 40, H03F 304

Patent

active

040217493

ABSTRACT:
A signal amplifying circuit including an amplifying transistor having its base-emitter terminals connected to a signal source. A diode having the proper characteristics is also connected across the base-emitter input terminals to produce a first reference bias voltage to be applied to the input circuit of the transistor. The emitter-collector circuit of a compensating transistor is connected in series with the emitter-collector circuit of the amplifying transistor, and a second reference bias voltage is connected between the base of the compensating transistor and the emitter of the amplifying transistor. The second reference bias voltage is produced across a plurality of diodes having the proper characteristics, whereby the current gain of the amplifier will be constant regardless of variations in the transistor characteristics.

REFERENCES:
patent: 2888525 (1959-05-01), Eckess et al.
patent: 3500220 (1970-03-01), Buckley
patent: 3551832 (1970-12-01), Graeme
patent: 3566293 (1971-02-01), Von Recklinghausen
patent: 3701032 (1972-10-01), Steckler

Affiliated with

Also associated with

Rating

Signal amplifying 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 Signal amplifying circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal amplifying circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-348196