Discharge lamp lighting device

Details Discharge lamp lighting device Discharge lamp lighting device

1977-12-07

1980-02-05

Smith, Alfred E.

Electric lamp and discharge devices: systems

Plural power supplies

Diverse-type current supplies

315206, 315DIG2, 315DIG5, H05B 3700, H05B 3900, H05B 4100

Patent

active

041874480

ABSTRACT:
Discharge lamps are connected to a commerical alternating current power supply through an impedance for blocking high frequency signals and an impedance compensating for the negative resistance of the discharge lamps. The discharge lamps are also connected to the commercial alternating current power supply through a rectifier and oscillator circuit, a voltage signal is generated including the commercial alternating current voltage superposed on a high-frequency, high-voltage signal from the oscillator. This voltage signal is applied to the discharge lamps to energize the same and maintain the lamps in a lighted condition.

REFERENCES:
patent: Re29191 (1977-04-01), Harrigan
patent: 3323012 (1967-05-01), Seib
patent: 4066930 (1978-01-01), Summa
patent: 4075476 (1978-02-01), Pitel

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