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System and method for controlling dimming of solid state lighting device

  • US 9,674,904 B2
  • Filed: 10/12/2012
  • Issued: 06/06/2017
  • Est. Priority Date: 10/14/2011
  • Status: Active Grant
First Claim
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1. A method of determining an amount of light to be output from a solid state lighting (SSL) unit, comprising an SSL load, based on a dimmer setting of a dimmer connected to input terminals of the SSL unit, the method comprising:

  • determining the dimmer setting of the dimmer during a readout mode by analyzing a power signal received from the dimmer at the input terminals of the SSL unit;

    determining a desired level of light to be output from the SSL unit corresponding to the determined dimmer setting;

    determining power needed at the input terminals of the SSL unit for the SSL load to output the desired level of output light;

    determining a value of an adjusting signal for adjusting the power at the input terminals of the SSL unit, based at least in part on the determined dimmer setting; and

    adjusting the power at the input terminals of the SSL unit during a power reception mode using the determined value of the adjusting signal, thereby powering the SSL unit to output the desired level of light.

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