Driver circuit, with low idle power consumption, for an attachme

Details Driver circuit, with low idle power consumption, for an attachme Driver circuit, with low idle power consumption, for an attachme

1996-01-04

1997-07-01

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327 65, 327 52, 326 86, H03K 190175

Patent

active

056442580

ABSTRACT:
A driver circuit, for an attachment unit interface in a network, includes a constant current source, a pair of logic gates, a differential transistor pair, a pair of load resistors, at least a first pair of switch transistors, a pair of source followers and another switch transistor. The source followers receive the differential voltage outputs from the drain terminals of the differential transistors. The bias current which operates the differential transistor pair is saved during Idle of the circuit by a de-assertion state of an enable signal.

REFERENCES:
patent: 4999519 (1991-03-01), Kitsukawa et al.
patent: 5177378 (1993-01-01), Nagasawa
patent: 5309036 (1994-05-01), Yang et al.
patent: 5386207 (1995-01-01), Lin
patent: 5406133 (1995-04-01), Vora et al.
patent: 5438545 (1995-08-01), Sim
patent: 5488322 (1996-01-01), Kaplinsky
patent: 5568436 (1996-10-01), Penchuk

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