Apparatus for starting and operating a discharge lamp

Details Apparatus for starting and operating a discharge lamp Apparatus for starting and operating a discharge lamp

1988-04-20

1989-07-11

Coles, Sr., Edward L.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315243, 315244, 315276, 315278, H05B 4124

Patent

active

048475378

ABSTRACT:
An apparatus for starting and operating a discharge lamp includes an inverter circuit. The inverter circuit comprises a parallel resonance circuit including an oscillation coil and capacitor, and which is connected to the discharge lamp, via a current-limiting coil, a switching transistor for triggering the parallel resonance circuit, and a feedback circuit connected to the switching transistor, for allowing a feedback signal for driving the switching transistor to be supplied to the base of the switching transistor, the feedback circuit being magnetically coupled to the current-limiting coil.

REFERENCES:
patent: 4127797 (1978-11-01), Perper
patent: 4259614 (1981-03-01), Kohler
patent: 4277728 (1981-07-01), Stevens
patent: 4544862 (1985-10-01), Yamazaki et al.
patent: 4572989 (1986-02-01), Zuchtreigel
patent: 4608523 (1986-08-01), Nilssen
patent: 4641061 (1987-02-01), Munson

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