Solid state circuit interruption employing a stored charge power

Details Solid state circuit interruption employing a stored charge power Solid state circuit interruption employing a stored charge power

1985-04-24

1987-01-13

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 8, 361 11, H01H 930

Patent

active

046369066

ABSTRACT:
A solid state circuit interrupter utilizes a power transistor connected across a pair of separable contacts to eliminate contact arcing between the contacts upon circuit interruption. Stored charge is provided to the power transistor prior to contact separation by a separate power supply and control transistor which are immediately turned off after contact separation to turn off the power transistor upon depletion of the stored charge.

REFERENCES:
patent: 3430063 (1969-02-01), Webb
patent: 3601622 (1971-08-01), Waaben
patent: 4300181 (1981-11-01), Premerlani
patent: 4420784 (1983-12-01), Chen et al.
patent: 4438472 (1984-03-01), Woodworth
U.S. Patent Application 610,947 filed 5/16/84, title "Solid State Current Limiting Circuit Interrupter" by E. K. Howell.

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