Arc suppression circuit for electrical contacts

Details Arc suppression circuit for electrical contacts Arc suppression circuit for electrical contacts

2006-12-05

2006-12-05

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

C361S002000, C361S013000

Reexamination Certificate

active

07145758

ABSTRACT:
A circuit to suppress arc across contacts of a relay is provided, in which the relay is electrically coupled to a power supply and a load. The circuit includes an arc suppression circuit electrically coupled between the first and second contacts of the relay, and the arc suppression circuit includes a capacitor and a switch, both of which are electrically coupled to the first and second contacts of the relay, in which the switch is configured to turn on when the first and second contacts of the relay change state, thereby providing an alternate path for a current flow through the load.

REFERENCES:
patent: 4644300 (1987-02-01), Ibe et al.
patent: 4658320 (1987-04-01), Hongel
patent: 5081558 (1992-01-01), Mahler
patent: 5652688 (1997-07-01), Lee
patent: 5703743 (1997-12-01), Lee
patent: 6671142 (2003-12-01), Beckert et al.

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