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US 2011/0210679 A1Published application
Device and method for activating LED strings
OwnerThorsten KOEPKE, Werner SCHIEMANNinventors
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Abstract
A device for activating at least two LED strings includes a source of electrical power, a switching controller and at least two LED strings having one or more LED(s). The switching controller in this case includes means for generating an essentially constant current, and the LED strings cooperate with the switching controller in such a way that at least one of the LED strings is supplied with current at least part of the time using the essentially constant current generated by the means.
Claims11
A device for activating at least two LED strings comprising:
- a source of electrical power;
- a switching controller including means for generating a substantially constant current;
- and
- at least two LED strings having one or more LEDs, the LED strings cooperating with the switching controller in such a way that at least one of the LED strings is supplied with current at least part of the time with the aid of the substantially constant current generated by the means for generating.
1 more element
A method for activating LED strings comprising:
- providing electrical power;
- generating a substantially constant current from the electrical power provided;
- providing the generated substantially constant current for at least two LED strings, each having at least one LED;
- and
- generating light with the aid of at least one LED of at least one of the LED strings at least part of the time via the provided current.
2 more elements
Dependencies are inferred from the claim text.