Starting circuit for high intensity gaseous discharge lamps

Details Starting circuit for high intensity gaseous discharge lamps Starting circuit for high intensity gaseous discharge lamps

1987-05-07

1989-01-03

Moore, David K.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315106, 315177, H05B 4116

Patent

active

047959452

ABSTRACT:
A circuit for starting, operating and instant hot restarting of high intensity gaseous discharge lamps utilizes a conventional ballast, an ignition transformer and a pulse transformer. The ignition transformer is connected across the ballast output and is in circuit with a storage capacitor and a spark gap device which, in combination, provide high frequency, high voltage pulses to a pulse transformer which is in circuit with the high intensity gasesous discharge lamp. There are means to limit the duration during which the high frequency, high voltage pulses are applied to ignite the lamp and there is a current sensitive timing circuit breaker to protect the lamp and ignition circuit.

REFERENCES:
patent: Re31486 (1979-04-01), Helmuth
patent: 3732460 (1973-05-01), Wattenbach
patent: 3917976 (1975-11-01), Nuckolls
patent: 3944876 (1976-03-01), Helmuth
patent: 4132925 (1979-01-01), Schmutzer et al.
patent: 4189663 (1980-02-01), Schmutzer et al.
patent: 4213076 (1980-07-01), Walz
patent: 4275337 (1981-06-01), Knoble et al.
patent: 4410837 (1983-10-01), Suzuki et al.
patent: 4441056 (1984-04-01), Siglock
Excerpt from 1987 Catalog of Bag Turgi Electronic including cover page and pp. 68-70.

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