Reverse current protection device

Details Reverse current protection device Reverse current protection device

2006-06-06

2006-06-06

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

C307S086000

Reexamination Certificate

active

07057868

ABSTRACT:
A reverse current protection device includes one or more contactors in a power circuit that open to prevent current flow and close to allow current flow; an impedance buffer to invert voltage across the diode; a threshold detector to compare inverted voltage to a reference voltage to determine a good or fault diode condition; an opto-isolator actuatable by the threshold detector when at least one of a good diode condition is determined and a fault diode condition is determined; and a relay in communication with the opto-isolator to cause at least one of the one or more contantors to close in a good diode condition and open in a fault diode condition.

REFERENCES:
patent: 4707759 (1987-11-01), Bodkin
patent: 5075813 (1991-12-01), Takabayashi
patent: 6157308 (2000-12-01), Byers
patent: 6777909 (2004-08-01), Aberle et al.
patent: 6800962 (2004-10-01), Bahl et al.
patent: 6838923 (2005-01-01), Pearson
patent: 2003/0113599 (2003-06-01), Pearson
patent: 03273834 (1991-12-01), None
patent: 05143205 (1993-06-01), None

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