Constant current circuit employing transistors having specific g

Details Constant current circuit employing transistors having specific g Constant current circuit employing transistors having specific g

1992-01-31

1993-08-24

Sikes, William L.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307443, 307448, 307451, 3072961, 3072968, H03K 301, H03K 3353

Patent

active

052392082

ABSTRACT:
A semiconductor integrated circuit including a constant current circuit or an active load circuit, which includes two field effect transistors having the same type of channels connected in series with each other, wherein the threshold voltages of the field effect transistors are different in value from each other, and the K-values of the field effect transistors are different from each other and the threshold voltages and the K-values of the field effect transistors satisfy a predetermined condition, or wherein the gate widths of the field effect transistors are different from each other and the gate lengths of the field effect transistors are different from each other.

REFERENCES:
patent: 3260863 (1966-07-01), Burns et al.
patent: 3299291 (1967-01-01), Warner, Jr. et al.
patent: 3898477 (1975-08-01), Buchanan
patent: 3980896 (1976-09-01), Kato
patent: 4302690 (1981-11-01), Gollinger et al.
patent: 4682055 (1987-07-01), Upadhyayula
patent: 4686387 (1987-08-01), Rumelhard
patent: 4896059 (1990-01-01), Goodwin et al.
patent: 4996447 (1991-02-01), Tanoi

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