Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – With compensation
Patent
1996-02-27
1997-05-20
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
With compensation
327110, 327378, 327416, 327513, H03K 1714, H03K 17687
Patent
active
056315953
ABSTRACT:
A line driver having two halves arranged in a push-pull configuration. Each half has a pass transistor, connected between a power supply rail and an output terminal, and an amplifier with an output coupled to the output terminal. Only one of the pass transistors conducts at any given time. A sense transistor, coupled between the power supply rail and the input of the amplifier, varies the output of the amplifier to compensate for variations in the conductivity of the conducting pass transistor. Preferably, the current density in the sense transistor is substantially the same as in the conducting pass transistor.
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Callahan Timothy P.
Englund Terry L.
Lucent Technologies - Inc.
McLellan Scott W.
Skaist Howard A.
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