Protection circuit and method of protecting a load circuit

Details Protection circuit and method of protecting a load circuit Protection circuit and method of protecting a load circuit

2006-09-28

2010-06-29

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

C361S093100, C361S093700, C361S093800

Reexamination Certificate

active

07746616

ABSTRACT:
A protection circuit includes an interruption device formed to interrupt a current path between a protection circuit input and a protection circuit output upon exceeding a predetermined temperature at a temperature measurement location, and a control device formed to generate a control signal depending on a current in the current path, wherein the protection circuit is formed to increase the temperature at the temperature measurement location or decrease the predetermined temperature, when the control signal indicates that the current in the current path is higher than a threshold value current.

REFERENCES:
patent: 6441679 (2002-08-01), Ohshima
patent: 195 27 997 (1995-07-01), None
patent: 19744765 (1997-10-01), None
patent: 2002135098 (2002-05-01), None

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