Driving arrangement for feeding a current with a plurality...

Details Driving arrangement for feeding a current with a plurality... Driving arrangement for feeding a current with a plurality...

2011-03-08

2011-03-08

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

C315S247000, C315S291000, C315S312000, C315S18500S

Reexamination Certificate

active

07902768

ABSTRACT:
A driving arrangement for feeding a current generated by a high frequency generator (10) coupled with a magnetic element (11) to a plurality of LED cells (33) each including at least one LED. The arrangement includes a respective plurality of LED channels (1, 2, 3, 4; 1′, 2′, 3′, 4′) arranged in a parallel configuration and one or more coupled inductors (L12, L23, L34) the couple in pairs the channels of the plurality of LED channels (1, 2, 3, 4; 1′, 2′, 3′, 4′).

REFERENCES:
patent: 6888529 (2005-05-01), Bruning et al.
patent: 7248245 (2007-07-01), Adachi et al.
patent: 7605544 (2009-10-01), Ushijima et al.
patent: 2002/0070914 (2002-06-01), Bruning et al.
patent: 2007/0152608 (2007-07-01), Lee
patent: 1 215 944 (2002-06-01), None
patent: 2005/048658 (2005-05-01), None

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