Protection circuit apparatus

Details Protection circuit apparatus Protection circuit apparatus

2006-08-23

2011-10-11

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S101000

Reexamination Certificate

active

08035943

ABSTRACT:
A protection circuit apparatus comprises a retriggerable fuse having an awakened state and a sleep state. The retriggerable fuse has an input and an output and is arranged, when in the awakened state, to selectively prevent a load current from flowing from the input to the output in response to the load current exceeding a first current threshold. An activation circuit is also provided and is arranged to sense the load current being drawn. The activation circuit causes the retriggerable fuse to enter the awakened state from the sleep state when the sensed load current exceeds a second current threshold.

REFERENCES:
patent: 5926354 (1999-07-01), King
patent: 6710698 (2004-03-01), Jehlicka et al.
patent: 19941699 (2001-03-01), None

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