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SYSTEMS AND METHODS FOR CONTROLLING SOLID STATE LIGHTING DEVICES AND LIGHTING APPARATUS INCORPORATING SUCH SYSTEMS AND/OR METHODS

  • US 20120306375A1
  • Filed: 06/03/2011
  • Published: 12/06/2012
  • Est. Priority Date: 06/03/2011
  • Status: Active Grant
First Claim
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1. A lighting apparatus comprising:

  • a string of serially-connected light-emitting diodes (LEDs) coupled between first and second terminals and comprising a first set of LEDs having a first chromaticity and a second set of LEDs having a second chromaticity different from the first chromaticity; and

    a control circuit operatively coupled to the string and configured to vary a color temperature produced by the string responsive to a variation in a total current passing between the first and second terminals.

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