Protection of power integrated circuits against load voltage sur

Details Protection of power integrated circuits against load voltage sur Protection of power integrated circuits against load voltage sur

1988-12-20

1990-01-09

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 6, 361 8, 361 88, 361187, 323289, 363 56, H02H 904

Patent

active

048932124

ABSTRACT:
A power integrated-circuit device is protected against load voltage surges. This is done by providing an alternate current-carrying path that is activated only in response to the occurrence of such surges. This alternate path is independent of and separate from the connection that extends between the device and its power supply source. In addition, circuitry is connected to the device to limit the portion of the surge voltage that can appear across critical elements of the device.

REFERENCES:
patent: 3729655 (1973-04-01), Gratzke
patent: 4186418 (1980-01-01), Seiler
patent: 4328526 (1982-04-01), Dilger et al.
patent: 4503480 (1985-03-01), Pickard et al.
patent: 4658203 (1987-04-01), Freymuth
patent: 4665459 (1987-05-01), Bynum et al.

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