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基于方波LTD的3MV闪光照相驱动器设计

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陈林, 周良骥, 蒋吉昊, 刘瑜, 王勐, 吴伟. 2017: 基于方波LTD的3MV闪光照相驱动器设计, 强激光与粒子束, 29(11): 102-106. doi: 10.11884/HPLPB201729.170189
引用本文: 陈林, 周良骥, 蒋吉昊, 刘瑜, 王勐, 吴伟. 2017: 基于方波LTD的3MV闪光照相驱动器设计, 强激光与粒子束, 29(11): 102-106. doi: 10.11884/HPLPB201729.170189
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Chen Lin, Zhou Liangji, Jiang Jihao, Liu Yu, Wang Meng, Wu Wei. 2017: Design of 3 MV flash radiographic driver based on square pulse LTD, High Power Lase and Particle Beams, 29(11): 102-106. doi: 10.11884/HPLPB201729.170189
Citation: Chen Lin, Zhou Liangji, Jiang Jihao, Liu Yu, Wang Meng, Wu Wei. 2017: Design of 3 MV flash radiographic driver based on square pulse LTD, High Power Lase and Particle Beams, 29(11): 102-106. doi: 10.11884/HPLPB201729.170189
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基于方波LTD的3MV闪光照相驱动器设计

  • 中国工程物理研究院 流体物理研究所,脉冲功率科学与技术重点实验室,四川 绵阳 621999

Design of 3 MV flash radiographic driver based on square pulse LTD

  • 摘要: 直线变压器驱动源(LTD)是近年来发展起来的一种新型电路拓扑技术,具有结构紧凑、参数调整灵活、能量效率高等优点.根据闪光照相的需要,开展了基于方波LTD技术的闪光照相驱动器设计,驱动器输出电压约3 MV,负载阻抗约40Ω(杆箍缩二极管特征阻抗).主机共由30个方波LTD模块串联而成,单个LTD模块采用16个放电支路(包含12个为基波支路和4个为谐波支路)并联,其中每个放电支路由2台脉冲电容器和一只多间隙气体开关串联组成.LTD次级采用变压器油绝缘,整机长度接近8 m.电路计算表明,驱动器输出电压大于3 MV,上升沿约16.8 ns,脉冲宽度约98 ns.
    Abstract: Linear transformer driver (LTD) is a new electrical circuit topology developed in recent years which has a num-ber of significant advantages such as compactness,flexible output parameters and high energy transfer efficiency.According to the requirement for flash X-ray radiography,the pulsed driver which can deliver 3 MV on a 40 Ω rod pinch diode (RPD) has been designed.The machine is composed of 30 square pulse LTD stages in series with a total length of 8 meters.Each LTD stage con-tains 12 fundamental bricks each consisting of two 10 nF capacitors and a multi-gap switch connected in series and 4 harmonic bricks each consisting of two 1 nF capacitors and a multi-gap switch connected in series.The transformer oil is used as voltage ad-der insulator.According to the equivalent circuit simulation,the generator can produce more than 3 MV fast pulse in 16.8 ns with 98 ns FWHM.
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  • 刊出日期:  2017-11-30

基于方波LTD的3MV闪光照相驱动器设计

  • 中国工程物理研究院 流体物理研究所,脉冲功率科学与技术重点实验室,四川 绵阳 621999

摘要: 直线变压器驱动源(LTD)是近年来发展起来的一种新型电路拓扑技术,具有结构紧凑、参数调整灵活、能量效率高等优点.根据闪光照相的需要,开展了基于方波LTD技术的闪光照相驱动器设计,驱动器输出电压约3 MV,负载阻抗约40Ω(杆箍缩二极管特征阻抗).主机共由30个方波LTD模块串联而成,单个LTD模块采用16个放电支路(包含12个为基波支路和4个为谐波支路)并联,其中每个放电支路由2台脉冲电容器和一只多间隙气体开关串联组成.LTD次级采用变压器油绝缘,整机长度接近8 m.电路计算表明,驱动器输出电压大于3 MV,上升沿约16.8 ns,脉冲宽度约98 ns.

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