Transient voltage detecting circuit

Details Transient voltage detecting circuit Transient voltage detecting circuit

2007-10-09

2007-10-09

Leja, Ronald W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

Reexamination Certificate

active

10920309

ABSTRACT:
The invention provides a transient voltage detecting circuit for detecting a transient voltage occurring at a power supply or a ground of an electronic system. The circuit according to the invention includes a plurality of detecting units of which the outputs are initially latched by at least one voltage source. The circuit also includes a detecting device outputting a first logic according to the initial outputs of all of the detecting units. When the transient voltage occurs, it is ensured that the logic of the output of one of the detecting units is changed by the transient voltage or the decayed transient voltage, such that the decision device renewably outputs a second logic to trigger a resetting device of the electronic system in accordance with the outputs of all of the detecting units.

REFERENCES:
patent: 3633101 (1972-01-01), Johnson et al.
patent: 5107139 (1992-04-01), Houston et al.
patent: 5999392 (1999-12-01), Sung et al.
patent: 6078201 (2000-06-01), Crotty
patent: 6490224 (2002-12-01), Manning

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