数控高精度PWM调制特种电源

The High Accuracy Digital Control PWM Driven Sources

介绍了两种斯特林制冷机数控驱动源,分析了单极性驱动方式与双极性驱动方式对红外探测芯片产生的干扰情况,并根据与系统的联试比较了两种数控驱动源的优缺点。说明了数字滤波技术、PID控制算法及V/F转换电路在提高温控精度和减少电源对探测芯片干扰中的优势。

Two types of Digital Control Driven Sources of Stirling Cryocooler was introduced in this paper. We analyzed the interference to the infrared chips caused by single polar driving and double polar driving and compared the advantages and disadvantages of two driven sources. The advantages of digtal filtering technology, PID control arithmetic was detailed in this paper. The advantages of V/F conversion circuit was also presented.