Note: Wide-operating-range control for thermoelectric coolers

A new algorithm for controlling the temperature of a thermoelectric cooler is proposed. Unlike a classic proportional-integral-derivative (PID) control, which computes the bias voltage from the temperature error, the proposed algorithm exploits the linear relation that exists between the cold side’s...

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Bibliographic Details
Published in:Review of scientific instruments 2017-11, Vol.88 (11), p.116102-116102
Main Authors: Peronio, P., Labanca, I., Ghioni, M., Rech, I.
Format: Article
Language:English
Subjects:
Algorithms
Coolers
Nonlinear control
Nonlinear systems
Proportional integral derivative
Scientific apparatus & instruments
Thermoelectric cooling
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Summary:A new algorithm for controlling the temperature of a thermoelectric cooler is proposed. Unlike a classic proportional-integral-derivative (PID) control, which computes the bias voltage from the temperature error, the proposed algorithm exploits the linear relation that exists between the cold side’s temperature and the amount of heat that is removed per unit time. Since this control is based on an existing linear relation, it is insensitive to changes in the operating point that are instead crucial in classic PID control of a non-linear system.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5000117