Avoiding saturation-to-zero of heaters in temperature regulators

  • Authors:

  • Jose Ospina;Enrico Canuto;Wilber Acuña Bravo

  • Affiliations:

  • Politecnico di Torino, Dipartimento di Automatica e Informatica, Torino, Italy;Politecnico di Torino, Dipartimento di Automatica e Informatica, Torino, Italy;Politecnico di Torino, Dipartimento di Automatica e Informatica, Torino, Italy

  • Venue:
  • ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
  • Year:
  • 2009

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Abstract

A method is provided for avoiding heater saturation-to-zero in the design of automatic temperature regulators where both thermoelectric coolers (TEC) and heaters are used. The analysis is developed around a lumped parameter thermal model and the results are given for steady-state conditions. The particular case in which TEC commands should be found to avoid heater saturation is considered. A practical example is included.