Electronic ballast with two transistors and two transformers

Details Electronic ballast with two transistors and two transformers Electronic ballast with two transistors and two transformers

1993-12-09

1995-05-16

Pascal, Robert J.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

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

315247, 315276, 315278, 315DIG5, H05B 3702

Patent

active

054163889

ABSTRACT:
A power factor corrected electronic ballast circuit uses two transformer components. An inductively coupled charge pump technique is used for power factor correction while the gates of the transistor switches are driven directly from a resonant inductor.

REFERENCES:
patent: 4017785 (1977-04-01), Perper
patent: 4045711 (1977-08-01), Pitel
patent: 4075476 (1978-02-01), Pitel
patent: 4188660 (1980-02-01), Knoll
patent: 4188661 (1980-02-01), Bower et al.
patent: 4808887 (1989-02-01), Fuhnrich et al.
patent: 5010277 (1991-04-01), Courier de Mere
patent: 5130610 (1992-07-01), Kakitani
"A Half Bridge, Self-Oscillating, Multi-Resonant Converter Circuit", Peterson, W. A. & Saint-Pierre, R., 1993 IEEE, pp. 77-84.

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