Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate
2007-03-13
2007-03-13
Philogene, Haissa (Department: 2828)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Impedance or current regulator in the supply circuit
C315S276000, C315S282000, C315S312000, C315S325000, C363S021070, C363S021090, C363S034000
Reexamination Certificate
active
10924585
ABSTRACT:
A DC/AC converter circuit structure for driving a plurality of cold cathode fluorescent lamps is described. A common-mode choke is used between the cold cathode fluorescent lamps. The common-mode choke balances the currents respectively flowing through the cold cathode fluorescent lamps.
REFERENCES:
patent: 5051667 (1991-09-01), Dunham
patent: 5930121 (1999-07-01), Henry
patent: 6130509 (2000-10-01), Kates et al.
patent: 6310444 (2001-10-01), Chang
patent: 6420839 (2002-07-01), Chiang et al.
patent: 6534934 (2003-03-01), Lin et al.
English translation of Chinese Office Action from related Chinese application (2 pgs).
English translation of Second Office Action from related Chinese application, dated Mar. 3, 2006.
Grossman Tucker Perreault & Pfleger PLLC
O2Micro International Limited
Philogene Haissa
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