I.sup.2 L Circuit with auxiliary transistor

Details I.sup.2 L Circuit with auxiliary transistor I.sup.2 L Circuit with auxiliary transistor

1977-05-23

1981-01-06

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307DIG1, 307296R, 357 92, H03K 19091

Patent

active

042438969

ABSTRACT:
The invention relates to an I.sup.2 L circuit in which the transistors provided with current injectors are distributed between a number of groups which are connected in series as stages between the supply connections. For the logic signal connections between a higher and a lower stage, a current source is used which is controlled from the higher stage and which is connected to the base of a controlled transistor in the lower stage. According to the invention, the switching time of the controlled transistor is reduced by providing a conductive connection which comprises the collector-emitter path of an auxiliary transistor between the base of the controlled transistor and a suitable point of a reference potential.

REFERENCES:
patent: 4013901 (1977-03-01), Williams
patent: 4035664 (1977-07-01), Berger et al.
Elmasry, Electronics Letters, vol. 11, No. 3, Feb. 6, 1975, pp. 63-64 (and 68).

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