Intelligent semiconductor temperature difference power generation controller and control method

Abstract

The invention provides an intelligent semiconductor temperature difference power generation controller and a control method. The controller comprises a single-chip microcomputer, a power supply circuit providing working voltage for the single-chip microcomputer and a display circuit used for displaying the working state of the controller and further comprises a boosting and voltage stabilizing circuit, a storage battery charging control circuit, a load control circuit and a detection circuit. The intelligent semiconductor temperature difference power generation controller is suitable for special control over output voltage in 3-15 V temperature difference power generation, can effectively store electric energy into a storage battery in a flexible and reliable charging mode, can realize quick charging of the temperature difference power generation storage battery and overload and overcharge protection of the storage battery, meanwhile, has the functions of conducting automatic switching between a power generation system and the storage battery and between the power generation system and a load circuit according to the electric quantity situation of the storage battery and the like, realizes effective conversion from thermal energy to electric energy and efficient utilization of thermal energy, and enables states and data of all the parts to be displayed synchronously.

Description

technical field [0001] The invention belongs to the field of semiconductor thermoelectric power generation control, and in particular relates to an intelligent semiconductor thermoelectric power generation controller and a control method that can be directly applied to the storage of output electric energy of a thermoelectric power generation sheet and the use with load. Background technique [0002] Thermoelectric power generation is based on the Seebeck effect to directly convert heat energy into electrical energy. Semiconductor thermoelectric power generation chips have the advantages of no noise, no pollution, no wear, light weight, and long service life. They can be used in the recovery and utilization of various waste heat. However, for a long time, due to the constraints of thermoelectric conversion efficiency and cost constraints, thermoelectric power generation technology has been mainly used in cutting-edge fields such as aerospace and military affairs. In recent y...

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Problems solved by technology

This existing technology uses solar photovoltaic panels to generate electricity, and its shortcomings are that the controller cannot be applied to the control of charge and discharge in thermoelectric power generation, and there is no overload and overcharge protection in the load control circuit, especially in the utilization of low-grade heat sources. Because the temperature of the cold and hot ends of the semiconductor thermoelectric power generation sheet is often unstable, under this condition, the output electric energy cannot be directly used due to the instability of its output voltage, current and power.

In the prior art, there is no controller specially used for civil thermoelectric power generation below 20V

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