Lamp ballast circuit

Details Lamp ballast circuit Lamp ballast circuit

1975-01-14

1977-04-05

La Roche, Eugene

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315239, 315240, 315290, 315DIG2, 315DIG5, H05B 41231

Patent

active

040164527

ABSTRACT:
Starting and operating ballast circuit for gaseous discharge lamp. Ballast winding comprises a pair of series connected coils each having a portion with a selected number of turns thereof connected in a high voltage starting circuit including a discharge capacitor and a voltage sensitive switch and forming a series discharge loop with the coil portions to provide high voltage, high frequency starting pulses on the lamp.

REFERENCES:
patent: 2858478 (1958-10-01), Dershaw
patent: 3160784 (1964-12-01), Strecker
patent: 3407334 (1968-10-01), Attewell
patent: 3611026 (1971-10-01), Crawford
patent: 3772565 (1973-11-01), Lenz et al.
patent: 3778677 (1973-12-01), Kriege
patent: 3919595 (1975-11-01), Willis, Jr.

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