Current controlling circuitry for logical circuit reference elec

Details Current controlling circuitry for logical circuit reference elec Current controlling circuitry for logical circuit reference elec

1979-05-18

1981-05-26

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

323269, 323316, 330259, 330260, H03F 345

Patent

active

042700922

ABSTRACT:
This current controlling circuitry is arranged to monitor and control the operation of transistor circuitry for the development of a highly accurate and stable reference electric level potential and/or current for distribution to a plurality of logical circuits on a semiconductor chip having of the order of a thousand such circuits thereon. A first order reference potential is developed by a current-source reference circuit and applied to a transistor operational amplifying circuit having current control circuitry connected in the biasing subcircuitry of that transistor amplifying circuit. This control circuitry essentially monitors the output of an amplifying circuit and adjusts feedback potential to an emitter bias supplying current source transistor for that amplifying circuit.

REFERENCES:
patent: 3435365 (1969-03-01), Greeson
patent: 3444476 (1969-05-01), Leidich
patent: 3721893 (1973-03-01), Davis
patent: 3868583 (1975-02-01), Krabbe
patent: 4024462 (1977-05-01), Highnote et al.
patent: 4105942 (1978-08-01), Henry
Chin, "On-Chip Voltage Regulator," IBM Technical Disclosure Bulletin, vol. 19, No. 6, Nov. 1976, pp. 2078, 2079.
Azzis, "Current-Source Scaling Circuit," IBM Technical Disclosure Bulletin, vol. 19, No. 5, Oct. 1976, pp. 1709, 1710.
Mitchell, "Pronolithic Current Source," IBM Technical Disclosure Bulletin, vol. 13, No. 12, May 1971, p. 3720.
Ogawa et al., "Stabilized Reference Voltage Source," IBM Technical Disclosure Bulletin, vol. 13, No. 9, Feb. 1971, p. 2689.

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