Double resonant driver ballast for gas lamps

Details Double resonant driver ballast for gas lamps Double resonant driver ballast for gas lamps

1997-02-18

1998-11-10

Kinkead, Arnold

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

315225, 315308, 315257, 315276, 315291, H05B 4136

Patent

active

058349030

ABSTRACT:
A power supply device for a gas filled arc-type lamp having a transformer with a core with a primary coil and a secondary coil, a power source coupled to the primary coil of the transformer core and providing a generally sinusoidal signal, a connector for joining the secondary coil of the transformer to the gas-filled arch-type lamp, and an unbalanced capacitance for introducing even-order harmonic distortion on the generally sinusoidal signal on the primary coil of the transformer and generating a generally sinusoidal signal on the secondary coil of the transformer such that a flow of ionized gas is created within the gas-filled arch-type lamp for dispersing any bubbles and standing waves in the lamp and so as to avoid adjustment of the power supply. The distorted signal has one-half cycle longer with a lower peak voltage than the other half-cycle.

REFERENCES:
patent: 4916362 (1990-04-01), Orenstein
patent: 5041763 (1991-08-01), Sullivan et al.
patent: 5315214 (1994-05-01), Lesea
patent: 5386181 (1995-01-01), Orenstein

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