Device for protecting electronic circuits against faults

Details Device for protecting electronic circuits against faults Device for protecting electronic circuits against faults

2011-03-29

2011-03-29

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

Reexamination Certificate

active

07916441

ABSTRACT:
A protection device for protecting an electronic circuit against a fault is described. The electronic circuit includes an output stage for driving a load and a driving circuit for driving the output stage. The driving circuit is configured to produce a drive signal in response to at least one input signal. The protection device includes a gating circuit and control means. The gating circuit has a first input configured to receive the drive signal, a second input configured to receive a control signal, and an output configured to activate and deactivate the output stage based on the drive signal and control signal. The control means produce the control signal in response to a detection signal representative of detection of the fault either of the load or of the output stage.

REFERENCES:
patent: 4829199 (1989-05-01), Prater
patent: 7468619 (2008-12-01), Okuda
patent: 2007/0146952 (2007-06-01), Asada et al.
patent: 2008/0018177 (2008-01-01), Su et al.
patent: 2009/0021232 (2009-01-01), Ishino

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