Protection circuit that can be associated with a filter

Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive

Patent

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Details

361 56, 361 915, 361118, H02H 322

Patent

active

061478539

ABSTRACT:
A structure for protection against electrostatic surges having two input terminals and two output terminals. The output terminals of the structure are connected to the inputs of a circuit to be protected. A first input terminal is connected to a first output terminal via an impedance. The second input terminal is connected to the second output terminal. The input terminals are interconnected by a first avalanche diode. The output terminals are interconnected by a second avalanche diode having the same biasing as the first avalanche diode.

REFERENCES:
patent: 3624449 (1971-11-01), Morgan
patent: 3631264 (1971-12-01), Morgan
patent: 4173774 (1979-11-01), Hyvarinen et al.
patent: 4190822 (1980-02-01), Swarbrick
patent: 4844342 (1989-07-01), Foley
patent: 4979067 (1990-12-01), Foley
patent: 5245499 (1993-09-01), Senes
patent: 5392188 (1995-02-01), Epstein
French Search Report from French Patent Application 97 12297, filed Sep. 29, 1997.

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