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Energy saving lighting systems and units providing coordinated operation of holding current units

  • US 8,339,066 B2
  • Filed: 03/25/2011
  • Issued: 12/25/2012
  • Est. Priority Date: 10/26/2009
  • Status: Active Grant
First Claim
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1. A lighting system comprising:

  • a dimmer that requires at least a holding current to be drawn for proper operation;

    a plurality of solid state light sources connected in parallel to an output of the dimmer, each of the solid state light sources comprising;

    a light emitter;

    a holding current circuit operable to draw a current from the dimmer; and

    a control circuit connected to selectively control the current drawn by the holding current circuit; and

    a control system configured to automatically reduce an excess of the sum of the currents drawn by the holding current circuits over the holding currentwherein the control system comprises a path by way of which the control circuits of the solid state light sources are configured to exchange information and the control circuits are configured to disable the corresponding holding current circuits or reduce the current drawn by the corresponding holding current circuit in response to information received from other ones of the control circuits.

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