高电源抑制比、低噪声电源的研究与设计  

Study and Design of Power Supply with High PSRR and Low Noise

作　　者：钱焕裕[1] 周叶华[1] 叶宝盛[1] QIAN Huan-yu ZHOU Ye-hua YE Bao-sheng(No. 36 Research Institute of CETC,Jiaxing 314033,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314000

出　　处：《舰船电子对抗》2017年第4期87-90,共4页Shipboard Electronic Countermeasure

摘　　要：随着无线电技术的迅猛发展,系统中的模拟电路对供电电源的电源抑制比、噪声等指标提出了越来越苛刻的要求。介绍了一种由独立器件搭建的电源系统。通过合理地选择运算放大器,精心设计电源反馈环路与滤波电路,可以使电源噪声得到优化,电源抑制比频响特性可调,使电源性能表现得更加优越,适应系统的要求。With the development ot radio technology, the analog circuit m ~y^telti p uL~ xw ~,,, and more stringent requirements to the indexes such as power supply rejection ratio （PSRR）, noise,etc.. This paper introduces a kind of power supply system built by independent devices, through the reasonable selection of operational amplifier and elaborate design of power supply feed- back loop and filter circuit,the noise performance of power supply is optimized and the PSRR fre- quency response characteristics can be adjusted,which make the performance of power supply sys- tem more superior to meet the demand of the system.

关 键 词：电源 稳定性 噪声 电源抑制比 

分 类 号：TN86[电子电信—信息与通信工程]