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Reduction of harmonic distortion for LED loads

  • US 8,922,136 B2
  • Filed: 11/14/2012
  • Issued: 12/30/2014
  • Est. Priority Date: 08/14/2009
  • Status: Active Grant
First Claim
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1. A system for a solid state light engine comprising:

  • an AC input providing an input voltage that is modified by a dimmer module;

    a rectifier receiving an applied electrical excitation from the dimmer module and supplying a unidirectional current to a load;

    a first network in the load, wherein the first network includes a first plurality of light emitting diodes (LEDs) arranged in series connection to form a first current path;

    a second network in the load wherein the second network includes a second plurality of LEDs arranged in series connection to form a second current path;

    a transistor that selectively diverts current away from at least one of the first and second networks of LEDs;

    wherein the solid state engine is substantially and continuously dimmable.

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