一种实用模拟温度控制电路设计  

A Practical Design of an Analog Thermal-control Circuit

作　　者：向潇 尹卫[2] 黄继[2] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨100051 [2]中国原子能科学研究院,北京102413

出　　处：《电子科技》2014年第4期124-127,共4页Electronic Science and Technology

摘　　要：介绍了一种实用的模拟温度控制电路设计。该电路主要由运算放大器、单结晶体管及可控硅器件组成,通过比例积分、电压比较及移相触发等电路实现对电源输出功率大小进行控制,从而达到控制加热装置功率的目的。该电路温控精度较高、工作状态稳定可靠、实用性较强,可应用于工业温度控制场所。A practical design of analog thermal-control circuit consisting primarily of operational amplifiers, unijunction transistors and SCR is proposed. , the circuit successfully controls the output power by methods of propor- tional integral, voltage comparison and phase-shifted triggering, so as to regulate the power of a heating equipment. Due to its high stability and precision, as well as strong practicability, this circuit can be applied in industrial con- trol area.

关 键 词：模拟温度控制电路 运算放大器 单结晶体管 可控硅 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]