基于单片机的半导体制冷温度控制仪

根据半导体制冷器（TEC）的物理特性分析了半导体制冷技术的关键，给出了温度控制仪系统的总体设计方案.整个系统采用闭环控制结构，系统的抗干扰能力大大增强.为半导体制冷器量身定做的驱动电路，可以方便的调节通过TEC电流的大小和方向，使TEC加热制冷灵活迅速的特点得到充分发挥.比例积分（PI）的控制方法使得温度控制快速稳定.温控仪与上位机通过USB口进行通讯，实现了上位机对温控仪的远程控制.

Semi-Conductor Temperature-Control System Based on Single-Chip

This paper first analyzes the key techniques of the semi-conductor technology according to the physical features of the thermoelectric cooler （TEC）,and then provides the overall blue-print design of this system.The system adopts the closed-loop controlling system,which greatly strengthens the ability of disturbance resistance.The driving circuit,which is specially designed for the semi-conductor refrigerator can conveniently adjust the size and the direction，which passes through the TEC electricity so as to fully make use of the advantages of swift and quick refrigerating and heating.And the controlling method of PI makes the temperature control quick and stable.At the same time,the paper completes the mutual communication between temperature control equipment and computer by way of USB interface,so as to realize the remote control of computer to the temperature control equipment.