LED power reduction trade-offs for ambulatory pulse oximetry

  title={LED power reduction trade-offs for ambulatory pulse oximetry},
  author={Eduardo Aguilar Pelaez and E.R. Villegas},
  journal={2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society},
  • E. A. Pelaez, E.R. Villegas
  • Published 22 October 2007
  • Physics
  • 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
The development of ambulatory arterial pulse oximetry is key to longer term monitoring and treatment of cardiovascular and respiratory conditions. The investigation presented in this paper will assist the designer of an ambulatory pulse oximetry monitor in minimizing the overall LED power consumption (PLED,TOT ) levels by analyzing the lowest achievable limit as constrained by the optical components, circuitry implementation and final SpO2 reading accuracy required. LED duty cycle (DLED… 

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