Starting and operating circuit for gaseous discharge lamps

Details Starting and operating circuit for gaseous discharge lamps Starting and operating circuit for gaseous discharge lamps

1979-08-08

1981-06-23

Smith, Alfred E.

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315239, 315244, 315280, 315DIG7, H05B 3700, H05B 4100

Patent

active

042753376

ABSTRACT:
Starting and operating circuit for gaseous discharge lamps has device for quickly re-starting extinguished lamps while still hot. Circuit comprises ballast reactor, pulse transformer having a magnetic core formed with an air gap, charging capacitor and voltage sensitive switch device connected to the pulse transformer to form a series discharge loop with a portion of the transformer, and a storage capacitor connected at the output of the ballast reactor having sufficiently high capacitance to provide, in combination with the pulse transformer, for hot re-start of the lamp.

REFERENCES:
patent: 3235769 (1962-12-01), Wattenbach
patent: 3917976 (1975-11-01), Nuckolls
patent: 3963958 (1976-06-01), Nuckolls
patent: 3976910 (1976-08-01), Owens et al.
patent: 4005336 (1977-01-01), Casella
patent: 4143304 (1979-03-01), Hitchcock et al.
General Electric Wiring Diagram 35-214290, dated 10/17/72, G.E. dwg. 35-204555, dated 5/2/73, G.E. ML35-976452-04, dated 11/79.

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