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介绍了基于单片开关式集成稳压器L4960和温度传感器AD590的一种恒温控制系统的设计和实现方法.该系统能够通过分压电位器随意地设定加热目标温度(范围从室温到100℃),完全由硬件电路实现对平台温度的实时测量与控制.实际测试表明,系统超调量小、上升时间快、控制方便、易于实现,控制精度可达到1℃.“,”It introduces a design and implementation of constant temperature control system which based on L4960 single chip switching integration manostat and AD590 temperature sensor. The system could enactment target temperature value at will by adjust the resistor (temperature range at room temperature to100 ℃), Measuring and controlling temperature in real time is completely by hardware. The actual tes-ting shows that the temperature control system exerts a good characteristic such as well smaller over-shoot, short rise time and easier control and realization. The control precision can reach to 1 ℃.