Dual matching current sink total temperature circuit

Details Dual matching current sink total temperature circuit Dual matching current sink total temperature circuit

1995-04-13

1996-01-02

Sikes, William L.

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Temperature

327513, 374183, H01L 3500, G01K 700

Patent

active

054812208

ABSTRACT:
The disclosure relates to a calibration-free analog processing circuit for use with an outside total temperature probe and an air data computer. Dual matching transistors are used to sink the current. A reference buffer provides operating current to the matching transistors. The output of the dual transistors represents the resistance in the probe and thereby the outside temperature.

REFERENCES:
patent: 3873857 (1975-03-01), Farrish
patent: 3973147 (1976-08-01), Yu
patent: 4004462 (1977-01-01), Dobkin
patent: 4246786 (1981-01-01), Wiemer et al.
patent: 4546373 (1985-10-01), Todd
patent: 4924114 (1990-05-01), Ruhle
patent: 4953986 (1990-09-01), Olson et al.
patent: 5030849 (1991-07-01), Brokaw
patent: 5095453 (1992-03-01), Pierson et al.
patent: 5116136 (1992-05-01), Newman
Microelectronic Circuits, A. S. Sedra & Kenneth C. Smith pp. 97, 105-106 HRW Inc., New York, N.Y. 1987.

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