Output buffer stage

Details Output buffer stage Output buffer stage

2007-12-04

2007-12-04

Chang, Daniel D. (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S030000, C327S112000, C327S391000

Reexamination Certificate

active

11272847

ABSTRACT:
The output buffer stage includes a half-bridge output stage having a first pair of complementary drivers connected in series between a supply line and a ground node, the high impedance state or conduction state of which is determined through a pair of control phases. The buffer stage includes a pair of switches controlled by the control phases, connected in series between them and connecting the transistors of the first stage in series. Each driver is connected in series with a switch, that is quickly opened to prevent under-threshold currents from circulating when the respective driver is turned off, and that is rapidly turned off when the respective driver is turned on.

REFERENCES:
patent: 6958626 (2005-10-01), Terletzki et al.

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