Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2007-03-27
2007-03-27
Sircus, Brian (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
C361S091100, C361S056000, C361S111000
Reexamination Certificate
active
10987359
ABSTRACT:
Electrostatic discharge protection circuitry includes a timing circuit operably coupled between the high supply side and low supply side of an associated circuit. The timing circuit has an RC node used for triggering a series of inverters configured to control an ESD dissipation device operably coupled to the high supply side node and the low side supply node of the circuit. A feedback transistor network and a feedback conditioning network is provided for ensuring that the ESD device is held on during an ESD event.
REFERENCES:
patent: 5311391 (1994-05-01), Dungan et al.
patent: 5508649 (1996-04-01), Shay
patent: 5589790 (1996-12-01), Allen
patent: 6552886 (2003-04-01), Wu et al.
A. Sedra et al. Microelectronic Circuits, 1987, Holt, Rinehart and Winston, pp. 342-345.
Brady W. James
Kitov Zeev
Sircus Brian
Stewart Alan K.
Telecky , Jr. Frederick J.
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