Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-11-12
1993-03-09
Westin, Edward P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307
Patent
active
051928809
ABSTRACT:
An emitter coupled logic circuit comprises a switching gate stage coupled with an input node and operative to carry out a logical operation on an input signal for producing a pair of intermediate signals, and an output stage having a first series combination of an emitter follower associated with an inverted output node, a first n-p-n type bipolar transistor and a resistor coupled between a ground voltage line and a negative power voltage line and a second series combination of an emitter follower associated with a non-inverted output node, a second n-p-n type bipolar transistor and a resistor coupled between the ground voltage line and the negative power voltage line, wherein the input node is coupled with the base node of the first n-p-n type bipolar transistor and the inverted output node is coupled with the base node of the second n-p-n type bipolar transistor so that the input signal is relayed to each of the emitter followers by means of a double signal path, thereby increasing the switching speed.
REFERENCES:
patent: 4039867 (1977-08-01), Blumberg et al.
patent: 4680480 (1987-07-01), Hopta
patent: 4980582 (1990-12-01), Waller et al.
NEC Corporation
Roseen Richard
Westin Edward P.
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