High voltage logic circuits

Details High voltage logic circuits High voltage logic circuits

2011-01-11

2011-01-11

Le, Don P (Department: 2819)

Electronic digital logic circuitry

Three or more active levels

C326S027000

Reexamination Certificate

active

07868657

ABSTRACT:
High voltage logic circuits that can handle digital input and output signals having a larger voltage range are described. In an exemplary design, a high voltage logic circuit includes an input stage, a second stage, and an output stage. The input stage receives at least one input signal and provides (i) at least one first intermediate signal having a first voltage range and (ii) at least one second intermediate signal having a second voltage range. The second stage receives and processes the first and second intermediate signals based on a logic function and provides (i) a first drive signal having the first voltage range and (ii) a second drive signal having the second voltage range. The output stage receives the first and second drive signals and provides an output signal having a third voltage range, which may be larger than each of the first and second voltage ranges.

REFERENCES:
patent: 6031394 (2000-02-01), Cranford et al.
patent: 6087852 (2000-07-01), Briggs et al.
patent: 2005/0040852 (2005-02-01), Mentze et al.

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