Apparatus for limiting arc discharge current in incandescent lam

Details Apparatus for limiting arc discharge current in incandescent lam Apparatus for limiting arc discharge current in incandescent lam

1985-12-05

1987-10-20

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315 71, 315 74, 338 20, 361 93, G05F 100, H05B 3702, H05B 3904, H05B 4136

Patent

active

047016752

ABSTRACT:
An arc discharge current occurred in dc-illuminated incandescent lamp can be effectively suppressed with an apparatus comprising first resistance connected in series with an incandescent lamp circuit; the second resistance connected in series with the incandescent lamp circuit; and a reverse-blocking triode thyristor connected in parallel with the second resistance and openable with the voltage drop produced between the first resistance by an arc discharge current.

REFERENCES:
patent: 2681429 (1954-06-01), Long
patent: 3723852 (1973-03-01), Peterson et al.
patent: 3975658 (1976-08-01), Emtage
patent: 4005338 (1977-01-01), Rios
patent: 4271448 (1981-02-01), Pond
patent: 4572992 (1986-02-01), Masaki
patent: 4617496 (1986-10-01), Samodovitz
"Lamp Saver", Elektor, Sep. 1984, Amsterdam.

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