一种新型X射线发生器电源设计-太赫兹科学与电子信息学报.PDF

第 14 卷 第 2 期 太赫兹科学与电子信息学报 Vo1．14，No．2 2016 年 4 月 Journal of Terahertz Science and Electronic Information Technology Apr．，2016 文章编号：2095-4980(2016)02-0311-07 一种新型 X 射线发生器电源设计 雷 宇，冉汉政，曾 清 ( 中国工程物理研究院 电子工程研究所，四川 绵阳 621999) 摘 要 ：设计了一种新型X 射线发生器电源，应用高频开关电源技术、高压倍压整流技术与单 片机控制技术，成功研制出一台额定电压160 kV ，管电流0.4 mA~1.2 mA 的用于安检设备的X 射线发 生器。介绍了X 射线发生器的应用场合、工作原理、主要设计思想及国内外研究现状；详细介绍了 设计的X 射线发生器电源的功能构成，阐述了高压与灯丝高频逆变电路、高压倍压整流电路以及控 制系统的拓扑结构、设计过程和仿真结果；最后给出了试验结果以及与安检系统进行联试的扫描 图像，测试结果表明，其技术指标达到安检设备用X 射线发生器的要求。 关键词 ：X 射线发生器；高压发生器；高频逆变谐振电路；安检系统 中图分类号 ：TN86 文献标识码 ：A doi ：10.11805/TKYDA201602.0311 Design of a novel X-ray generator power system LEI Yu，RAN Hanzheng，ZENG Qing (Institute of Electronic Engineering，China Academy of Engineering Physics，Mianyang Sichuan 621999，China) Abstract： A novel X-ray generator power system in security inspection system is proposed and designed, which has rated voltage of 160 kV and tube current of 0.4 mA-1.2 mA. The technology of high frequency switching power supply is applied to the design, as well as high voltage doubling rectifying and single chip microcomputer control. The application and working principles of X-ray generator are introduced as well as the design methods. Then the functional configuration of the proposed X-ray generator is listed, including the high voltage and filament high frequency inverter, high voltage doubling rectifying circuit and the controlling system. The topological structure, design process and si