Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate
2006-06-14
2011-11-22
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
C315S224000, C315S247000, C315S294000
Reexamination Certificate
active
08063585
ABSTRACT:
A current source arrangement, in which at least one branch, comprising a current source (1) and means (2) for the connection of an electrical load (3), is provided. A comparator (5) with transistor (7) connected downstream is connected to a voltage tapping node (4) of said branch. The transistor (7) is connected to a common signal line (8), which is in turn connected to a feedback input of a DC voltage regulator (10). The arrangement can be extended with any number of further branches given a common signal line (8). The current source arrangement proposed is suitable in particular for supplying a plurality of LED array segments for illumination applications and displays.
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austriamicrosystems AG
Cozen O'Connor
Le Tung X
Owens Douglas W
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