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Illumination control system

  • US 6,963,175 B2
  • Filed: 08/28/2002
  • Issued: 11/08/2005
  • Est. Priority Date: 08/30/2001
  • Status: Expired due to Term
First Claim
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1. A light emitting diode illumination system arranged to drive one or more light emitting diode light sources which comprises a control system including a microprocessor arranged to control a pulse amplitude modulated (PAM) voltage controlled current circuit, and a current feedback means for monitoring current driving the light source(s).

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