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0引言在工农业生产和日常生活中,很多场合需要对温度进行控制,常用的温度控制器根据测温方法、系统组成、控制算法的不同种类很多,有的控制方式复杂。本文介绍一种简易的温度调节控制器设计,电路由模拟温度传感器和电子线路组成;能通过拨码开关在20℃--29℃范围内设置给定室温,电路运行工作正常,可将室温控制在既定范围内。该控制器通过拨码开关设置给定温度送DA转换芯片将数字量的给定温度转换为模拟电压输出的方法具有独特
0 Introduction In industrial and agricultural production and daily life, many occasions need to control the temperature, commonly used temperature controller based on temperature measurement methods, system composition, control algorithms of many different types, and some control methods are complex. This article describes a simple temperature controller design, the circuit consists of analog temperature sensors and electronic circuits; DIP switch can be set within the range of 20 ℃ - 29 ℃ given room temperature, circuit operation is normal, the room temperature control Within the established range. The controller through the DIP switch to set the given temperature to send DA converter chip digital temperature will be converted to a given analog voltage output method has a unique