斯特林制冷机驱动器电流检测电路的比较和应用

Comparison and application of current detection in drive controller of Stirling cryocooler

斯特林制冷机是为红外探测器提供稳定冷源的关键部件,驱动控制器用于实现制冷机的驱动及高精度控温。为对制冷机进行功率控制,实现过流及输入功率保护等功能,满足高精度、低损耗、快速响应的要求。本文介绍了用于制冷机电流采样的直接和间接检测的方法以及应用电路,并对驱动控制器使用的直接电流检测的高低端应用电路的优缺点进行比较。

Stirling cryocoolers widely used for cooling infrared detectors are the most important components of the system.Stirling cryocooler drive controller was designed to drive Stirling cryocoolers with high precision control temperature,including over-current shut down and input electrical power,to meet the requirements of high precision,low loss and fast response.The direct and indirect methods to detect the current of the drive controller,application circuit and comparison of the advantages and disadvantages were introduced in the paper.