I.sup.2 L injector current source

Details I.sup.2 L injector current source I.sup.2 L injector current source

1976-11-04

1978-02-21

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307214, 307299B, 307303, 357 44, 357 46, H03K 1908, H03K 1940

Patent

active

040755088

ABSTRACT:
A switchable injector current source for integrated injection logic (I.sup.2 L) circuits is provided. An I.sup.2 L gate having an NPN output transistor with at least two collectors is used to drive an emitter follower. A resistor is connected from the emitter of the emitter follower to one of the collectors of the NPN transistor. The base of the emitter follower is connected to the other collector of the NPN transistor and is also connected to a current source. The output of the switchable injector current source is taken from the junction formed by the collector of the NPN transistor and the resistor.

REFERENCES:
patent: 3564281 (1971-02-01), Tokunaga et al.
patent: 3913123 (1975-10-01), Masaki et al.

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