Circuit to limit surges into a dc-operated lamp

Details Circuit to limit surges into a dc-operated lamp Circuit to limit surges into a dc-operated lamp

1992-12-24

1993-11-23

Wysocki, Jonathan

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361111, H01H 900

Patent

active

052649881

ABSTRACT:
A circuit to limit surges into dc-illuminated lamp, including a rectifier circuit having a smoothing means, an output terminal of the rectifier circuit being connected with a lamp; an inductor connected with an input terminal of the rectifier circuit: a surge-limiting means connected in series with its lamp: and a switching means having the main current path connected in parallel with the surge-limiting means, said switching means becoming conductive when the filament of the lamp is warmed up.

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