Inverter control method for electronic ballasts

Details Inverter control method for electronic ballasts Inverter control method for electronic ballasts

1998-03-30

1999-10-19

Wong, Don

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch cut-out

315225, 315307, 315224, 315324, H05B 4114

Patent

active

059694831

ABSTRACT:
A method (100) of controlling an inverter in an electronic ballast for at least one gas discharge lamp protects the inverter from damage due to lamp fault conditions, and provides enhanced noise immunity and multiple ignition attempts for low-temperature lamp starting. The method (100) includes repeating a filament preheating step and a frequency shifting step up to a predetermined number of times in order to facilitate lamp ignition under low-temperature conditions and to verify the legitimacy of a detected lamp fault.

REFERENCES:
patent: 4245177 (1981-01-01), Schmitz
patent: 4477748 (1984-10-01), Grubbs
patent: 5289083 (1994-02-01), Quazi
patent: 5404083 (1995-04-01), Nilssen
patent: 5449980 (1995-09-01), Kiefer et al.
patent: 5463284 (1995-10-01), Mattas
patent: 5500576 (1996-03-01), Russell et al.
patent: 5635799 (1997-06-01), Hesterman
patent: 5739645 (1998-04-01), Xia et al.
patent: 5770925 (1998-06-01), Konopka et al.
patent: 5869935 (1999-02-01), Sodhi

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