现代电子技术2017，Vol.40Issue(22)：159-162,4.DOI:10.16652/j.issn.1004-373x.2017.22.047
一种X射线发生装置电流源的设计
Design of a current source for X-ray generator
摘要
Abstract
Currently,the method of using high-energy electron to bombard metal is mainly used in industry to generate X-ray. A self-feedback type DC current source based on the principle of switching power supply was designed. The DC current source supplies the adjustable DC input voltage for the switching power supply module by means of the DC-DC conversion chip XL4015. And the Buck-type switching power supply module offers the stable voltage for the load to maintain a certain current flowing through the load.The voltage of the sampling resistor is amplified differentially by OPA2340,and fed back to the switching power supply module by SG3525 to form the closed-loop control. The test results show that the current source has the advantages of stable output,high efficiency,reliable performance,simple circuit and low cost,and its precision can meet the demand of X-ray generation.关键词
电流源/开关电源/X射线发生器/OPA2340/SG3525Key words
current source/switching power supply/X-ray generator/OPA2340/SG3525分类
信息技术与安全科学引用本文复制引用
杨刚,吴文杰,任峰..一种X射线发生装置电流源的设计[J].现代电子技术,2017,40(22):159-162,4.基金项目
西安石油大学全日制硕士研究生创新基金项目(2015CX140325) （2015CX140325）
