Circuit system for lighting a discharge lamp or lamps

Details Circuit system for lighting a discharge lamp or lamps Circuit system for lighting a discharge lamp or lamps

1980-12-18

1983-03-15

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Inductance in the condenser circuit

315101, 315174, 315176, 315DIG2, H05B 4114

Patent

active

043769110

ABSTRACT:
A discharge lamp lighting circuit system comprises a discharge lamp, an intermittent oscillation circuit, and an arrangement for controlling the energy supplied for lighting the discharge lamp with a high power factor. The intermittent oscillation circuit is energized by a low frequency a.c. power supply, i.e. a commercial alternating current power supply, for intermittently generating a high frequency high voltage in each half cycle of the alternating current of the low frequency a.c. power supply. By supplying the low frequency alternating current voltage and the intermittent high frequency high voltage to the lamp the discharge lamp is reignited in each half cycle of the a.c. of the low frequency alternating current power supply and the lit state of the discharge lamp is sustained by the low frequency alternating current voltage. The supplied energy controlling arrangement supplies the low frequency current to the discharge lamp during the operation period of the intermittent oscillation circuit and it also supplies the high frequency current generated by the intermittent oscillation circuit, effectively to the discharge lamp, whereby the discharge lamp is lit with a high power factor.

REFERENCES:
patent: 3758818 (1973-09-01), Kaneda
patent: 4079292 (1976-01-01), Kaneda

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