几种恒温槽控温电路的分析探究  

Analysis and Research on Several Oven Controlled Circuits

作　　者：阎玉英[1] 徐国盛[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2014年第11期69-72,共4页Radio Engineering

基　　金：国家信息产业部专项基金资助项目(X1145146)

摘　　要：针对恒温晶体振荡器(OCXO)必要的控温电路,提出了几种恒温槽温度控制电路解决方案,包括单运放控制电路直接加热、电阻加热和双运放控制电路等,并对它们的原理和特点进行分析和比较,给出必要的数学计算和分析。在分析总结这几种控温电路的基础上,着重探究了双运放控温电路的原理和特点,总结了双运放控温电路的优缺点,并据此搭建了一个热槽状态对电源变化不敏感的控温电路,实现了恒温晶振频率稳定度的提高。This paper presents the solution for several oven controlled circuits which are essential in OCXO,including single oper-ational controlled circuit with direct heating, resistor heating and dual operational controlled circuit and so on, it analyzes and comparestheir principle and characteristics and gives necessary mathematical calculation. Based on the above analysis on several oven controlledcircuits, it discusses the principle and characteristics of dual operational amplifier oven controlled circuit, and builds an oven controlledcircuit in which the oven status is not sensitive to the power supply variation, which improves the frequency stability of OCXO.

关 键 词：恒温晶体振荡器 恒温槽 温度控制电路 双运放控温 

分 类 号：TL362.7[核科学技术—核技术及应用]