机载预警雷达低噪声接收机电源设计  

Design of Low Noise Power Supply Used in Airborne Early Warning Radar Receiver

作　　者：封心歌[1] FENG Xinge(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2021年第12期69-76,共8页Modern Radar

摘　　要：针对某机载预警雷达接收机需求,研制了一种高精度、低噪声线性稳压电源。文中对电源系统架构、电磁干扰滤波器、降压变压器、整流滤波电路、功率变换电路、并联冗余电路、保护电路进行了理论分析和仿真,并给出了试验样机工作波形和测试数据。电源具有双路并联冗余、输出限流保护及自恢复功能,输出纹波可小于2 mV。该电路设计方法已广泛应用于机载预警雷达接收机电源领域。A kind of high-accuracy and low-noise linear regulator power supply is designed for the requirement of certain receiver in airborne early warning radar.The structure of power supply system,the electro magnetic interference filter,the step-down transformer,the rectifier filter circuit,the power conversion circuit,the parallel redundant circuit and the protection circuit are theoretically analyzed and simulated.The work wave shape and test data of a test prototype are given.This power supply has functions of two-way parallel redundancy,output current limit protection and self-recovery,the output ripple can be less than 2 mV.This circuit design method has been widely used in airborne early warning radar receiver power supply domain.

关 键 词：机载预警雷达 接收机 高精度 低噪声 线性稳压 

分 类 号：TN957.5[电子电信—信号与信息处理]