Apparatus for limiting surge currents in dc-illuminated incandes

Details Apparatus for limiting surge currents in dc-illuminated incandes Apparatus for limiting surge currents in dc-illuminated incandes

1986-02-18

1988-04-05

Dixon, Harold

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315107, 315224, 315307, H05B 3702

Patent

active

047361387

ABSTRACT:
Surge currents which may arise in dc-illuminated incandescent lamp can be effectively limited by an apparatus comprising a low resistance (first resistance); another resistance (second resistance); a diode rectifier, the input terminal being connected in series to an ac source through the first resistance, and the output terminal being connected in series to an incandescent lamp through the second resistance; a voltage regulator diode connected in parallel with said diode rectifier; a capacitance (first capacitance) connected in parallel to the input terminal of said diode rectifier; another capacitance (second capacitance) connected in parallel to the output terminal of said diode rectifier; a switching device connected to the second resistance; and a timing circuit connected to said switching device in a manner that the switching device shorts the second resistance after a lapse of a prescribed time upon switching-on of the ac source.

REFERENCES:
patent: 3555361 (1971-01-01), Hallberg
patent: 3644783 (1972-02-01), Snyder
patent: 3886405 (1975-05-01), Kubo
patent: 3989976 (1976-11-01), Tabor
patent: 4197485 (1980-04-01), Nuver
patent: 4503365 (1985-03-01), Kirk
patent: 4572992 (1986-02-01), Masaki

Affiliated with

Also associated with

Rating

Apparatus for limiting surge currents in dc-illuminated incandes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for limiting surge currents in dc-illuminated incandes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for limiting surge currents in dc-illuminated incandes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2235266