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SYSTEM AND METHOD FOR DIMMABLE CONSTANT POWER LIGHT DRIVER

  • US 20120032605A1
  • Filed: 08/06/2010
  • Published: 02/09/2012
  • Est. Priority Date: 08/06/2010
  • Status: Active Grant
First Claim
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1. An apparatus for supplying power to a luminous load, comprising:

  • a sample and hold (S/H) circuit adapted to temporarily generate a first voltage for a defined time interval, wherein the first voltage is based on an input voltage;

    a modulator adapted to generate a drive signal including a parameter modulated by the first voltage;

    a switching device adapted to turn on and off based on the drive signal;

    a transformer adapted to develop a second voltage in response to current produced in a first winding of the transformer in response to the switching device being turned on and off; and

    an output circuit adapted to generate a third voltage across the luminous load based on the second voltage.

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