STM32帕尔贴加热器软件的模块化设计

为解决市面上医用加热器成本较高、智能化程度较低、安全性较低的问题,本文设计一种基于STM32微控器的帕尔贴加热器.使用较为常见的帕尔贴热电半导体制冷器件和STM32微控器,针对帕尔贴加热和制冷双功能特性,搭建两路以4个场效应管为基础元器件的H桥电路作为驱动电路,实现智能化温度控制以及按键控制多功能并显示,体现了人性化设计.另外,对系统各个模块进行模块化编程,使用μC/OS-II和PID优化控制算法,不仅实现脱机工作,而且很大程度上提高了系统的稳定性、精确性和实用性.

Software Modular Design of Peltier Heater Based on STM32

In order to solve the problems of high cost,low intelligence and low safety of medical heater on the market,a STM32-based Peltier heater is designed.The Peltier thermoelectric semiconductor refrigeration devices and STM32 chip are used.For the Peltier heating and cooling dual function,two H-bridge circuits are built as a driving circuit,each H-bridge circuit using four field effect transistors as a basic component.This design achieves the intelligent temperature control and key control multi-function and display,it is a kind of user-friendly design.In addition,the whole system is modularized programming.The use of μC/OS-II system and PID optimizates the control algorithm,not only achieves offline work,but also greatly improves the stability,accuracy and practicality of the system.