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Extended life LED fixture with central controller and multi-chip LEDs

  • US 8,237,581 B2
  • Filed: 01/23/2009
  • Issued: 08/07/2012
  • Est. Priority Date: 10/09/2007
  • Status: Active Grant
First Claim
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1. A method for controlling a plurality of LED drivers within a single light fixture using a central controller, comprising:

  • activating a first LED driver so that it drives a first subset of LEDs within at least one multi-chip LED package;

    monitoring the first LED driver;

    once an operating parameter of the first LED driver satisfies a predetermined value, deactivating the first LED driver and the first subset of LEDs; and

    activating a second LED driver so that it drives a second subset of LEDs within the at least one multi-chip LED package,wherein the first LED driver is distinct from the second LED driver and the first subset of LEDs is distinct from the second subset of LEDs, andwherein the first LED driver, the second LED driver, and the at least one multi-chip LED package are within the single light fixture.

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