Kicker磁铁电源控制系统设计

Design of Control System for Kicker Magnet Power Supply

兰州重离子加速器冷却储存环包含多个注入和引出环节,其中较为关键的是CSRm的引出和CSRe的注入系统,其时间控制精度直接影响束流的注入引出效率。本文采用先进的ARM+FPGA技术实现对踢轨电源系统的精确控制,其时间控制精度达ns量级。ARM主要实现控制数据的下载与上传,踢轨系统的控制时序主要通过FPGA编程完成。远程时序控制信号均通过光纤传输,同时对踢轨电源的电压给定采用数字电位器技术实现,给定精度达0.1%。

The heavy ion research facility at Lanzhou cooler storage ring（HIRFL-CSR） includes several parts of extraction and injection systems.Among these parts the extraction part of CSRm and the injection part of CSRe are the most important parts and the time control precision of them affects the beam＇s injection and extraction efficiency directly.In this paper the advanced ARM＋FPGA technology was applied to make a precise control of the Kicker control power supply system and the control accuracy reached to ns.ARM was mainly used to upload and download the control data and the timing sequence control was mainly completed by the program on FPGA.All the control signal of remote timing was transferred through optic fiber,and at the same time,the digital potentiometer was used to fix the voltage of the power supply system with the given accuracy of 0.1%.