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METHOD TO CONTROL A LIGHTING CURRENT OF A LIGHTING DEVICE

  • US 20130154503A1
  • Filed: 04/11/2011
  • Published: 06/20/2013
  • Est. Priority Date: 04/16/2010
  • Status: Abandoned Application
First Claim
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1. A method to control a lighting current of a lighting device with a plurality of semiconductor lighting means, provided to signal and mark traffic areas in airports, comprising the steps of:

  • predetermining period intervals with a fixed period length, selecting an average lighting current to operate the semiconductor lighting means within the period intervals,generating in each of the period intervals a plurality of current pulses with a pulse amplitude IP and a fixed pulse duration T, andselecting the number of current pulses per period interval such that within the period interval the respectively selected average lighting current is reached, with the pulse pauses between subsequent current pulses being adjusted variably.

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