OMNI voltage direct current power supply

  • US 8,299,726 B2
  • Filed: 05/05/2011
  • Issued: 10/30/2012
  • Est. Priority Date: 03/19/2004
  • Status: Active Grant
First Claim
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1. A ballasting DC/DC power supply for powering a light emitting diode (LED) based illumination device comprising:

  • an input for receiving a direct current (DC) voltage;

    an output for driving at least one LED;

    a current sensor for sensing a current through said at least one LED; and

    a switch-mode regulator receiving said DC voltage from said input and providing a substantially constant current output to said LED by adjusting the switch-mode regulator as a function of the current sensed by said current sensor.

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