数字化超低纹波可编程动态电源  

Digital Programmable Dynamic Power Supply With Low Ripple

作　　者：李瑞[1] 谭松清[1] 郭春龙[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201204

出　　处：《电力电子技术》2014年第12期22-24,共3页Power Electronics

摘　　要：提出了一种超低纹波可编程动态电源设计方案，研制了一台1500A／50V数字化电源样机，用于高饱和磁铁的测磁。该电源采用全数字化控制技术，实现了多闭环均流控制、移相倍频、可编程动态电流波形输出。经测试，电源电流纹波在1～10kHz频率范围内优于1ppm，长期稳定性优于10ppm，可实现各种波形的在线编程和动态输出，对斜率为1715A／s的斜坡电流跟踪误差优于0．1％，达到了设计指标。A programmable dynamic power supply with low current ripple design scheme is proposed, and a 1 500 A/ 50 V digital power supply prototype is developed to measuring the magnet of high saturation magnet.The power sup- ply adopts pure digital control technology, realizes the multi closed-loop current averaing control, phase-shift double- frequency and programmable dynamic current waveforms output.Test results show that the current ripple of the power supply is superior than lppm in the frequency range of 1 ～10 kHz, and long time reliability superior than 10ppm, the online program and dynamic output of variable wavefroms can be realized,the tracking error of the 1 715 A/s slope current is superior than 0.1%, reach the design target.

关 键 词：电源 数字化 超低纹波 

分 类 号：TN86[电子电信—信息与通信工程]