基于谐振推挽电路的X射线管灯丝电源设计  

Design of a Filament Power System for X-ray Tube Based on Resonant Push-pull Circuit

作　　者：汤代斌[1] 朱卫民 洪乃刚[3] 

机构地区：[1]安徽机电职业技术学院,安徽芜湖241000 [2]马鞍山恒瑞测量设备有限公司,安徽马鞍山243000 [3]安徽工业大学,安徽马鞍山243000

出　　处：《重庆科技学院学报（自然科学版）》2013年第3期169-173,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：安徽省高校省级自然科学研究自筹项目(KJ2011Z047)

摘　　要：根据X射线管的结构和工作原理,提出高压供电采用正负电源供电的X射线管的灯丝电源主电路宜采用谐振形式。分析推挽谐振式电路的工作原理与控制方式,采用脉宽调制集成电路SG3526的频率调制方式实现对灯丝电流的控制,并给出控制电路原理图。实验波形验证了原理的正确性和方案的可行性。According to the structure and working principle of the X-ray tube,in the case of high-voltage power supply,this paper proposes that the resonant form is suitable for filament power supply main circuit of the X-ray tube.It analyzes the working and controlling method of the push-pull resonant circuit.It realizes filament current control using pulse width modulation with integrated chip SG3526 in frequency modulation method.Then it gives a schematic diagram of the control circuit.The experimental results verify the correctness and feasibility of the design.

关 键 词：灯丝电源 推挽电路 谐振 脉冲频率调制 

分 类 号：TM911[电气工程—电力电子与电力传动]