Single chip computer-based multi-TEC (Thermoelectric Cooler) temperature-regulated control system

Abstract

The invention relates to a single chip computer-based multi-TEC (Thermoelectric Cooler) temperature-regulated control system. The system comprises a single chip computer, a driving module and a temperature measurement module, wherein the single chip computer is used for receiving an external temperature control command, calculating the collected temperature measurement data to obtain temperature control targets and controlling the digital voltage quantity, the driving module is used for conducting temperature regulation control to a temperature control object, and the temperature measurement module is used for measuring temperature of the controlled object; and the temperature measurement module is connected with the driving module. The invention provides a single chip computer-based multi-TEC temperature-regulated control system which has the advantages of being flexible to control, strong in reliability, high in precision, fast in speed and the like.

Description

technical field [0001] The invention relates to a TEC two-way temperature regulation control system, in particular to a multi-TEC temperature regulation control system based on a single chip microcomputer. Background technique [0002] Thermoelectric Coolers (Thermoelectric Coolers) TEC’S, also known as semiconductor coolers, are a new type of device with heating and cooling functions, often used in occasions with limited space and high reliability. The realization of the function of the thermoelectric cooler depends on the direction of the power supply current. If the direction of the current is changed, the heating and cooling surfaces will be reversed, and the output of cooling capacity can be adjusted by adjusting the magnitude of the current. When the thermoelectric cooler actually works, the temperature of the hot end is determined by the ambient temperature and the heat dissipation of the hot end, and the cooling capacity is determined by the cooling load and the cool...

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Problems solved by technology

[0004] In the actual system, the environment in which the detector is located is more complex, including the installation parts connected to the detector, the ambient temperature, the heating of the detector itself, etc. are all factors that cause the working temperature of the detector to not be constant at the optimal working point. The cooling capacity and cooling area of ​​a single TEC are limited, and it is often difficult to meet the accuracy requirements of constant temperature, which affects the best performance of the detector. In addition, in some special cases, it is necessary to reverse the temperature control of the controlled object, such as Heating in a certain stage in order to achieve a certain control goal

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