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基于半桥结构的双极性脉冲电源的研究

潘英进 熊奕鸣 李孜 姜松 饶俊峰

潘英进, 熊奕鸣, 李孜, 等. 基于半桥结构的双极性脉冲电源的研究[J]. 强激光与粒子束, 2024, 36: 025005. doi: 10.11884/HPLPB202436.230329
引用本文: 潘英进, 熊奕鸣, 李孜, 等. 基于半桥结构的双极性脉冲电源的研究[J]. 强激光与粒子束, 2024, 36: 025005. doi: 10.11884/HPLPB202436.230329
Pan Yingjin, Xiong Yiming, Li Zi, et al. Investigation of bipolar pulse source based on half-bridge structure[J]. High Power Laser and Particle Beams, 2024, 36: 025005. doi: 10.11884/HPLPB202436.230329
Citation: Pan Yingjin, Xiong Yiming, Li Zi, et al. Investigation of bipolar pulse source based on half-bridge structure[J]. High Power Laser and Particle Beams, 2024, 36: 025005. doi: 10.11884/HPLPB202436.230329

基于半桥结构的双极性脉冲电源的研究

doi: 10.11884/HPLPB202436.230329
基金项目: 国家自然科学基金项目(12205192)
详细信息
    作者简介:

    潘英进,panyingjin07@163.com

    通讯作者:

    饶俊峰,raojunfeng1985@163.com

  • 中图分类号: TM832

Investigation of bipolar pulse source based on half-bridge structure

  • 摘要: 为了满足脉冲电场消融的应用需求,解决单极性脉冲电场分布不均匀的问题,研制了一台基于半桥结构的主电路、具有纳秒级前沿的高重复频率双极性亚微秒高压脉冲电源。该脉冲电源由FPGA提供控制信号,经过驱动芯片放大控制信号后,利用光耦隔离驱动多个SiC MOSFET。驱动电路所需元器件较少,信号控制时序简单,可提供负压偏置,使开关管可靠关断,提高了电路的抗电磁干扰能力,使电源能稳定运行。通过电阻负载实验,对比分析了不同栅极电阻对驱动电压的影响,驱动电压上升沿时间越短对应的双极性高压脉冲前沿越快。实验结果表明:所设计的高频双极性脉冲电源在100 Ω纯阻性负载上能够稳定产生重复频率双极性纳秒脉冲,输出电压0~±4 kV可调,脉宽0.2~1.0 μs可调,正负脉冲相间延时0~1 ms可调,上升沿和下降沿60~150 ns之间。该双极性脉冲电源电路设计结构紧凑,能满足应用的参数需求。
  • 图  1  基于半桥结构的全固态双极性脉冲电源电路原理图

    Figure  1.  Schematic of all-solid-state bipolar pulse generator based on half-bridge structure

    图  2  驱动控制系统

    Figure  2.  Drive control system

    图  3  基本控制时序图

    Figure  3.  Basic time sequence of control signals

    图  4  均压电路原理图

    Figure  4.  Schematic of the voltage balancing circuit

    图  5  不同 Rg值时的驱动电压波形和负载输出电压波形

    Figure  5.  Driving voltage waveforms and load voltage waveforms with different gate resistors

    图  6  不同电压幅值的输出波形

    Figure  6.  Output waveforms with variable voltage

    图  7  不同脉宽的输出波形

    Figure  7.  Output waveforms with variable pulse width

    图  8  不同负载下的输出电压波形对比

    Figure  8.  Comparison of output voltage waveforms under different loads

    图  9  高频脉冲串输出

    Figure  9.  High frequency pulse string

    图  10  50 Ω 负载输出电压及电流波形

    Figure  10.  Voltage and current waveforms over 50 Ω load

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出版历程
  • 收稿日期:  2023-09-22
  • 修回日期:  2023-11-29
  • 录用日期:  2023-11-29
  • 网络出版日期:  2023-12-02
  • 刊出日期:  2024-01-12

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