Driver circuit

Details Driver circuit Driver circuit

1997-02-13

1999-06-29

Santamauro, Jon

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Bipolar transistor

326 32, 326 33, H03K 19086

Patent

active

059173440

ABSTRACT:
A driver circuit for driving a load connected between an output terminal and a reference potential, includes a first transistor having a collector connected to a first supply potential and an emitter connected to the output terminal. A second transistor has a collector connected to the output terminal and an emitter connected to the reference potential. An emitter-coupled transistor pair has bases to which a symmetrical control signal is applied, one collector which is coupled through a first resistor to the first supply potential and another collector which is coupled through a second resistor with the output terminal. A controllable current source supplies the transistor pair. A control device controls the current source in proportion to a supply voltage occurring between the first supply potential and the reference potential.

REFERENCES:
patent: 4894562 (1990-01-01), Cavaliere et al.
patent: 5068550 (1991-11-01), Barre
patent: 5381057 (1995-01-01), Kuroda et al.
patent: 5384498 (1995-01-01), Wong
patent: 5473272 (1995-12-01), Wilhelm et al.
patent: 5539350 (1996-07-01), Wilhelm
An article by George R. Watson, entitled "Advances in Bipolar VLSI", in Proceedings of the IEEE, vol. 78, No. 11, Nov. 1990;.
Handbuch TTL-und CMOS Schaltkreise (Handbook TTL-and CMOS Switching Circuits) by Dr. Eberhad Kuhn, Heidelberg, (1985) Page 90;.

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