Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-05-22
2007-05-22
Lee, Wilson (Department: 2163)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S2090SC, C315S246000
Reexamination Certificate
active
11105155
ABSTRACT:
An electronic ballast for high intensity gas discharge lamps where the wave form of the lamp current is square wave providing acoustic resonance and flickering free operation. The circuit, having high efficiency, operates in a wide temperature range providing ideal ballast curve and reliable ignition for the lamps. Furthermore, significant energy saving can be achieved by its externally controlled built in dimming capability.
REFERENCES:
patent: 4614898 (1986-09-01), Itani et al.
patent: 5235255 (1993-08-01), Blom
patent: 5313143 (1994-05-01), Vila et al.
patent: 5428268 (1995-06-01), Melis et al.
patent: 5710488 (1998-01-01), Nilssen
patent: 6166495 (2000-12-01), Newell et al.
patent: 6329761 (2001-12-01), Melis et al.
patent: 7009347 (2006-03-01), Henze
M.C. Unglert, The need for high-pressure sodium ballast classification, Lighting Design and Application, Mar. 1982.
J. Melis, An output unit for low frequency square wave electronic ballast, SOUTHEASTCON'94 (IEEE). 1994, Miami, Florida.
Ballastronic, Inc.
Lee Wilson
LandOfFree
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