Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Reexamination Certificate
2007-12-25
2007-12-25
Tran, Thuy Vinh (Department: 2821)
Electric lamp and discharge devices: systems
Discharge device and/or rectifier in the supply circuit
Flashers
C315S2090SC, C315S291000
Reexamination Certificate
active
11405823
ABSTRACT:
An electronic ballast for driving at least one lamp comprising a rectifying circuit operatively connectable to an AC line; a current drawing circuit connected across said rectifying circuit; and an inverter circuit connected to said rectifying circuit that supplies a lamp current to said at least one lamp; wherein said current drawing circuit draws current from said AC line when the instantaneous voltage of said AC line nears zero to reduce the total harmonic distortion of the input current drawn by said ballast.
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DeJonge Stuart
Newman, Jr. Robert C.
Spira Joel S.
Taipale Mark
Travaglini Dominick
Lutron Electronics Co. Inc.
Ostrolenk Faber Gerb & Soffen, LLP
Tran Thuy Vinh
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