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IMPROVEMENT TO LIGHTING SYSTEMS

  • US 20090085494A1
  • Filed: 09/04/2006
  • Published: 04/02/2009
  • Est. Priority Date: 09/03/2005
  • Status: Abandoned Application
First Claim
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1. A power adaptor for a solid state lighting unit, comprising:

  • an input for receiving a phase controlled input power signal of varying on-duration; and

    a controller coupled to the input and operable to produce at least one pulsed output driving signal in which both the duration and height of the pulses are varied according to the on-duration of the input power signal, to thereby control a light intensity output of the solid state lighting unit.

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