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High temperature LED system using an AC power source

  • US 8,896,235 B1
  • Filed: 08/22/2013
  • Issued: 11/25/2014
  • Est. Priority Date: 11/17/2010
  • Status: Active Grant
First Claim
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1. An LED system for coupling to an AC power source comprising:

  • a rectifier module electrically coupled to the AC power source and configured to provide a rectified output;

    a first group of LED devices electrically coupled to the rectifier module and configured to receive the rectified output;

    a second group of LED devices electrically coupled to the first group of LED devices;

    a current monitor module electrically coupled to the first group and second group of LED devices, the current monitor module being configured to determine a first current level using a drawn current level signal associated with the first group of LED devices and a second current level using a reference current level signal associated with the second group of LED devices; and

    a temperature sensing module electrically coupled to the current monitor module and configured to generate a at least one compensation factor based at least in part on a temperature.

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