Inductor structures for electrical discharge lamp circuits

Details Inductor structures for electrical discharge lamp circuits Inductor structures for electrical discharge lamp circuits

1976-09-27

1978-08-08

Nelson, Peter A.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

336220, H05B 4116

Patent

active

041059310

ABSTRACT:
An inductor structure for use in a discharge lamp circuit has wound around at least part of its magnetic core first and second conducting foils. The first conducting foil is insulated from the magnetic core. The second conducting foil is interwound with but separated and insulated from the first conducting foil by a first dielectric foil and a second dielectric foil interwound with the conducting foils. The conducting foils have different numbers of turns. The conducting foil with the greater number of turns has all its turns except its excess turns wound oppositely to the turns of the other conducting foil. The structure provides a lower level of harmonic content above main frequency in the lamp and mains current waveforms.

REFERENCES:
patent: 3071845 (1963-01-01), Leonard et al.
patent: 3125705 (1964-03-01), Feinberg et al.
patent: 3201734 (1965-08-01), Halacsy
patent: 3319206 (1967-05-01), Harloff
patent: 3474370 (1969-10-01), Lightner
patent: 3478291 (1969-11-01), Lugten
patent: 3668588 (1972-06-01), Walsh, Jr.
patent: 3939449 (1976-02-01), Boyd et al.

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