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Method of Controlling an Electronic Dimming Ballast During Low Temperature Conditions

  • US 20110241561A1
  • Filed: 11/30/2010
  • Published: 10/06/2011
  • Est. Priority Date: 04/06/2010
  • Status: Abandoned Application
First Claim
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1. A method of driving a gas discharge lamp comprising the steps of:

  • generating a high-frequency output voltage having an operating frequency;

    adjusting the operating frequency so as to control an intensity of the lamp between a minimum intensity and a maximum intensity;

    generating a temperature control signal representative of a lamp temperature of the lamp;

    determining if the lamp temperature of the lamp is below a cold temperature threshold; and

    increasing the minimum intensity of the lamp if the lamp temperature of the lamp is below the cold temperature threshold.

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