微型X射线管灯丝电源的研制

余强; 曾国强; 葛良全; 魏世龙; 刘玺尧; 罗群

doi:10.11889/j.0253-3219.2016.hjs.39.100402

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微型X射线管灯丝电源的研制

核电子学与仪器 | 更新时间：2021-05-24

- 微型X射线管灯丝电源的研制
- Development of the filament power supply of micro X-ray tube
- 核技术 2016年39卷第10期文章编号：100402
- 作者机构：
  
  成都理工大学核技术与自动化工程学院成都 610059
- 作者简介：
  
  [ "余强, 男, 1989年出生, 2014年毕业于东华理工大学, 现为硕士研究生, 研究方向为核技术及应用", "YU Qiang, male, born in 1989, graduated from the Donghua Polytechnic University in 2014, master student, major in nuclear technology and application" ]
  曾国强, E-mail:zgq@cdut.edu.cn ZENG Guoqiang, ,E-mail:zgq@cdut.edu.cn
- 基金信息：
  
  国家自然科学基金(41474159);国家863计划项目(2012AA061803);成都理工大学中青年骨干教师培养计划项目(JXGG201408)
- DOI：10.11889/j.0253-3219.2016.hjs.39.100402
  中图分类号： TL99
- 收稿日期：2016-05-09，
  
  修回日期：2016-08-10，
  
  纸质出版日期：2016-10
- 稿件说明：
移动端阅览
余强, 曾国强, 葛良全, 等. 微型X射线管灯丝电源的研制[J]. 核技术, 2016,39(10):100402

Qiang YU, Guoqiang ZENG, Liangquan GE, et al. Development of the filament power supply of micro X-ray tube[J]. Nuclear techniques, 2016, 39(10): 100402
余强, 曾国强, 葛良全, 等. 微型X射线管灯丝电源的研制[J]. 核技术, 2016,39(10):100402 DOI： 10.11889/j.0253-3219.2016.hjs.39.100402.

Qiang YU, Guoqiang ZENG, Liangquan GE, et al. Development of the filament power supply of micro X-ray tube[J]. Nuclear techniques, 2016, 39(10): 100402 DOI： 10.11889/j.0253-3219.2016.hjs.39.100402.

摘要

根据微型X射线管的特点，设计了基于推挽电路和闭环反馈电路的灯丝驱动电源。采用了UCC3808脉宽调制（Pulse Width Modulation，PWM）控制芯片产生两路相位相反的PWM信号，并经由UCC37324金属氧化物半导体（Metal-Oxide-Semiconductor，MOS）管大电流驱动器提高驱动效率，实现推挽结构的后端驱动电路。闭环反馈电路的设计采用精密电阻将管电流的信号转换为等比例的电压信号引入到反馈环节，通过系统自身的闭环控制实现管电流的恒定，并保持高效率和低功耗。实验首先通过外接1.5Ω的功率电阻测量系统功率，测得输入功率为11W，效率超过80%，符合灯丝电源的功耗指标要求；然后连接实际的X光管灯丝，经测试可正常工作，管流稳定度为0.227%。

Abstract

Background

X-ray is widely used in various industries whilst the filament power supply is an important core component of X-ray tube. Traditional technology that applies 220-V AC input power frequency

power factor correction

the step-down transformer heating filament works fine for medium and large X-ray tube filament power supply

but is unsuitable for the micro X-ray tube.

Purpose

This study aims to develop a novel filament power supply for practical micro X-ray tube.

Methods

According to the characteristics of the micro X-ray tube

the push-pull circuit and a closed-loop feedback circuit were employed for the filament drive power supply. UCC3808 pulse width modulation (PWM) control chip was used to generate two opposite phase PWM signals

and the driving efficiency was improved through the UCC37324 metal-oxide-semiconductor (MOS) tube high current drive

so as to achieve the back-end of push-pull driving circuit. The tube current signal was converted into isometric voltage signal through the precision resistor

and then be introduced into the feedback loop through closed-loop control of the system to achieve a constant tube current

and maintain high efficiency and low power consumption.

Results

The input power is measured to be 11W

and efficiency to be more than 80% when firstly connected to a 1.5-Ω power resistance

which meets the power consumption requirements of the filament power supply. Then an actual X light tube filament was connected for practical test

results show it is in working order with tube flow stability of 0.227%.

Conclusions:

The filament power supply proposed in this paper meets the requirements of practical micro X-ray tube

its stability is mainly induced by the ripple of high voltage power on the filament

and the unoptimized parameters of tube flow closed-loop feedback loop. These will be improved in the future work.

关键词

Keywords

references

陈峰. X射线管直流高压电源的研制及其远程控制的实现[D].长沙:中南大学, 2012

CHEN Feng. Development of DC high voltage power supply for X-ray tube and the realization of its remote control[D]. Changsha:Central South University, 2012

贾振宇. X光机电源设计与研究[D].北京:北京交通大学, 2009

JIA Zhenyu. The research and design of X machine power[D]. Beijing:Beijing Jiaotong University, 2009

邓增武.用于X光机的高频逆变器及其控制系统的研制[D].广州:华南理工大学, 2011

DENG Zengwu. Development of high frequency inverter and its control system for X machine[D]. Guangzhou:South China University of Technology, 2011

向国进 , 童建民 . 便携式能量色散X荧光分析仪的研制 . 实验技术与管理 , 2009 . 26 ( 2 ): 74 - 76 . http://www.cnki.com.cn/Article/CJFDTOTAL-YQXB200103026.htm .

Guojin XIANG , Jianmin TONG . Development of portable energy dispersive X fluorescence analyzer . Experimental Technology and Management , 2009 . 26 ( 2 ): 74 - 76 . http://www.cnki.com.cn/Article/CJFDTOTAL-YQXB200103026.htm .

韩强.医用X射线系统高压发生器的设计与实现[D].沈阳:东北大学, 2009

HAN Qiang. Design and implementation of high voltage generator for medical X-ray system[D]. Shenyang:Northeastern University, 2009

Liang S, Tzou Y. The DSP control of a resonant switching high-voltage power supply for X-ray generators[C]. IEEE Proceedings of the Power Electronics and Drive Systems, Indonesia:IEEE, 2001:522-526

李爱文 , 张承慧 . 现代逆变技术及其应用 , : 北京科学出版社 , 2000 .

Aiwen LI , Chenghui ZHANG . Modern inverter technology and its application , : Beijing Science Press , 2000 .

曾国强 , 刘玺尧 , 罗群 , . 低纹波微型X射线管高压电源的研制 . 原子能科学技术 , 2015 . 49 ( 2 ): 366 - 371 . http://www.cnki.com.cn/Article/CJFDTOTAL-YZJS201502028.htm .

Guoqiang ZENG , Xiyao LIU , Qun LUO , . Development of low ripple miniature X-ray tube high voltage power supply . Atomic Energy Science and Technology , 2015 . 49 ( 2 ): 366 - 371 . http://www.cnki.com.cn/Article/CJFDTOTAL-YZJS201502028.htm .

孙世君 , 高友 , 孙仁涛 . 基于X射线仪器的高压电源设计 . 仪表技术与传感器 , 2008 . 35 ( 10 ): 98 - 99 . http://www.cnki.com.cn/Article/CJFDTOTAL-YBJS200810037.htm .

Shijun SUN , You GAO , Rentao SUN . Design of high voltage power supply based on X-ray instrument . Instrument Technique and Sensor , 2008 . 35 ( 10 ): 98 - 99 . http://www.cnki.com.cn/Article/CJFDTOTAL-YBJS200810037.htm .

胡丹 , 赵应泽 , 蔡雷 . 1 000 V可调脉动直流电源的设计 . 测控技术 , 2006 . 25 ( 8 ): 79 - 80 . http://www.cnki.com.cn/Article/CJFDTotal-BGZD200608041.htm .

Dan HU , Yingze ZHAO , Lei CAI . Design of 1 000 V adjustable pulse DC power supply . Measurement and Control Technology , 2006 . 25 ( 8 ): 79 - 80 . http://www.cnki.com.cn/Article/CJFDTotal-BGZD200608041.htm .

张辉.串联谐振软开关推挽电路研究[D].杭州:浙江大学, 2008

ZHANG Hui. Research on push-pull circuit resonant soft switch series[D]. Hangzhou:Zhejiang University, 2008

王昌 , 姜学东 , 邱瑞昌 , . 创新型的基于软开关的X射线电源系统 . 电力电子技术 , 2007 . 41 ( 4 ): 58 - 60 . http://www.cnki.com.cn/Article/CJFDTOTAL-DJYY200701008.htm .

Chang WANG , Xuedong JIANG , Ruichang QIU , . A novel topology of ZCS-PWM DC/DC converter for X-ray generator . Power Technology Application , 2007 . 41 ( 4 ): 58 - 60 . http://www.cnki.com.cn/Article/CJFDTOTAL-DJYY200701008.htm .

陈文光 , 饶益花 , 陈海辉 . X射线机管电流控制方法研究 . 核电子学与探测技术 , 2008 . 28 ( 4 ): 770 - 773 . http://www.cnki.com.cn/Article/CJFDTOTAL-HERE200804023.htm .

Wenguang CHEN , Yihua RAO , Haihui CHEN . Research on the control method of X-ray tube current . Nuclear Electronics & Detection Technology , 2008 . 28 ( 4 ): 770 - 773 . http://www.cnki.com.cn/Article/CJFDTOTAL-HERE200804023.htm .

陶永华 . 新型PID控制及其应用 , : 北京机械工业出版社 , 2003 .

Yonghua TAO . New PID control and its application , : Beijing Machinery Industry Press , 2003 .

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