Receive timely and accurate temperature information and its timely control, in many occasions in the industry are all important aspects. Therefore, this article has designed a single-chip microcomputer 89C51 as the core temperature control system. Algorithm is derived through the ratio of the volume control, and then to the form of pulse width modulation wave output to power devices. And in order to guarantee stable operation of the system in hardware and software have been taken corresponding measures. The main feature of this design: 1, using the AD674 12-bit AD conversion method of collecting the water temperature, making acquisition greatly increased the scope and accuracy 2, the use of liquid crystal display, makes the optimization show that at the same time, reducing the power consumption of circuits 3, proportional algorithm, reduces the temperature overshoot.

Packet : 53607913wendu.rar filelist
水温控制系统\NONAME5.ASM
水温控制系统\水温控制系统.ASM
水温控制系统\草稿1.ASM
水温控制系统\12位AD转换电路.Ddb
水温控制系统\BACKUP~4.DDB
水温控制系统\水温控制.ddb
水温控制系统\液晶显示.DDB
水温控制系统

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