Active arc protection circuit

Details Active arc protection circuit Active arc protection circuit

1988-09-19

1989-09-26

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361 94, 361101, 358190, 315409, H02H 904

Patent

active

048705292

ABSTRACT:
An arc protection circuit is disclosed for protecting a component, such as a transistor, from the effects of arcs developed in a CRT. The protection circuit includes an arc sensing circuit coupled to the component to be protected so as to sense the presence of an arc-induced transient voltage, in response to which the sensing circuit rapidly assumes a first state. An active current switch is coupled to the protected component and is responsive to the first state of the sensing circuit for rapidly assuming a low impedance state to shunt arc-induced current away from the component.

REFERENCES:
patent: 3499104 (1970-03-01), Austin
patent: 3535436 (1970-10-01), Limberg
patent: 3541234 (1970-10-01), Austin
patent: 3908159 (1975-09-01), Griffey
patent: 4197558 (1980-04-01), Rutishauser
patent: 4441137 (1984-04-01), Harwood
patent: 4595941 (1986-06-01), Avery

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