Input/output buffer and electrostatic discharge protection...

Details Input/output buffer and electrostatic discharge protection... Input/output buffer and electrostatic discharge protection...

2009-04-29

2011-10-18

Nguyen, Danny (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S111000

Reexamination Certificate

active

08040646

ABSTRACT:
A buffer device includes a first driving circuit coupled between a signal terminal of the buffer device and a first reference potential, a current-limiting component including a first terminal coupled to the signal terminal, and a second driving circuit coupled between a second terminal of the current-limiting component and a second reference potential, wherein the current-limiting component limits an amount of ESD current flowing through the second driving circuit, and makes an amount of ESD current flowing through the first driving circuit be larger than the amount of ESD current flowing through the second driving circuit.

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patent: 5157573 (1992-10-01), Lee et al.
patent: 6583972 (2003-06-01), Verhaege et al.
patent: 6898062 (2005-05-01), Russ et al.
patent: 7005708 (2006-02-01), Mergens et al.
patent: 7692905 (2010-04-01), Hung

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