Current mirror arrays

Details Current mirror arrays Current mirror arrays

1978-03-23

1979-09-04

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

330288, G05F 308

Patent

active

041669711

ABSTRACT:
Improved current sources which provide n output units of current responsive to m input units of current are constructed by connecting (m+n).sup.2 transistors in a square array configuration, controlled by (m+n) control devices. The array contains (m+n) columns each of which conducts a current the magnitude of which is desired to equal the magnitude of the current flowing in every other column, and has a maximum deviation only in proportion to [1/(1+.beta.)].sup.4 where .beta. is the common emitter current gain of the transistors.

REFERENCES:
patent: 3843933 (1974-10-01), Ahmed
patent: 3867685 (1975-02-01), Ahmed
patent: 3936725 (1976-02-01), Schneider
patent: 3952257 (1976-04-01), Schade
patent: 3982172 (1976-09-01), VAN DE Plassche
patent: 3992676 (1976-11-01), Knight
patent: 3999139 (1976-12-01), Fennell
patent: 4016435 (1977-04-01), Voorman
patent: 4057763 (1977-11-01), Wheatley
Radovsky, RCA Technical Note 949, Dec. 31, 1973, 7 pages, 330-288.
Barker et al., "A Precision Active Current-Splitting Circuit Technique", IEEE Journal of Solid State Circuits, Jun. 1976, pp. 406-408.
Hart et al., "The Design of Constant Current Sources", Electronic Engineering, Jun. 1977, pp. 85-88.

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