一种微光像增强器阴极选通模块的设计

杜培德; 朱文锦; 周盛涛; 李晓露; 李亚情; 褚祝军; 杨可洁

一种微光像增强器阴极选通模块的设计

北方夜视技术股份有限公司，云南昆明 650223

详细信息

作者简介:
杜培德（1986-），男，云南玉溪人，硕士，工程师，主要从事像增强器电源设计。E-mail：541395364@qq.com

中图分类号: TN22
计量
- 文章访问数: 243
- HTML全文浏览量: 45
- PDF下载量: 59
- 被引次数: 0
出版历程
- 收稿日期: 2020-10-08
- 修回日期: 2020-12-04
- 刊出日期: 2021-10-20

Design of Image Intensifier Photocathode Gating Module

North Night Vision Technology Co. Ltd, Kunming 650217, China

摘要

摘要: 高速成像分幅相机通过阴极选通模块控制微光像增强器的光电阴极选通工作可实现ns级的时间分辨率，传统阴极选通模块存在开关速度慢、只有负压输出或正负压不能满幅值输出等问题。本文基于CMOS推挽输出结构和电压电平转移电路，设计实现一种能够使用低边驱动器驱动PMOS和NMOS开关的阴极选通模块，并采用死区时间控制避免上、下管交叉导通。实测验证该电路具有结构简单、性能可靠等优点，实现了ns级上升、下降沿，占空比0~100%可调和满幅值+30~-200 V脉冲输出，十分适合微光像增强器阴极选通使用。
- 微光像增强器 /
- 阴极选通 /
- 正负脉冲发生器
Abstract: For high-speed imaging framing cameras, nanosecond-level time resolution can be achieved using a photocathode gating module to control the image intensifier photocathode. Traditional modules have some problems, such as slow switching speed, exclusively negative voltage output, and positive or negative voltage outputs that cannot reach the full amplitude. Based on the CMOS push-pull output structure and voltage level transfer circuit, a photocathode gating module was designed, which could use a low-side driver driving PMOS and NMOS. Dead-time control was used to avoid cross conduction of the upper and lower MOSFETs. The actual test results verified that this module has the advantages of simple structure and reliable performance; moreover, the ns level rising or falling edge, adjustable duty ratio 0 to 100%, and +30 to -200 V pulse output amplitude were realized. This module was found to be suitable for gating the photocathode of the image intensifier.
- image intensifier /
- photocathode gating /
- positive and negative pulse generator

HTML全文

图 1 双近贴像增强管的结构

Figure 1. Structure of double proximity image intensifier tube

下载: 全尺寸图片幻灯片

图 2 正负输出结构分析

Figure 2. Analysis of positive and negative output structure

下载: 全尺寸图片幻灯片

图 3 本文设计的电路结构

Figure 3. The circuit structure designed in this paper

下载: 全尺寸图片幻灯片

图 4 正负脉冲电路结构

Figure 4. Positive and negative pulse circuit structure

下载: 全尺寸图片幻灯片

图 5 正压脉冲电路原理

Figure 5. Schematic of positive voltage pulse circuit

下载: 全尺寸图片幻灯片

图 6 负压脉冲电路原理

Figure 6. Schematic of negative voltage pulse circuit

下载: 全尺寸图片幻灯片

图 7 D_y=0%时正压输出维持电路设计

Figure 7. Positive output maintenance design when D_y=0%

下载: 全尺寸图片幻灯片

图 8 D_y=100%时负压输出维持电路设计

Figure 8. Negative output maintenance design when D_y=100%

下载: 全尺寸图片幻灯片

图 9 上电时序电路设计

Figure 9. Power on sequence design

下载: 全尺寸图片幻灯片

图 10 V_SignA、V_SignB波形

Figure 10. Waveforms of V_SignA and V_SignB

下载: 全尺寸图片幻灯片

图 11 V_DrivA、V_DrivB波形

Figure 11. Waveforms of V_DrivB and V_DrivB

下载: 全尺寸图片幻灯片

图 12 最小脉宽V_Out波形

Figure 12. Minimum pulse width waveform of V_Out

下载: 全尺寸图片幻灯片

图 13 D_y≈0%的V_Out波形

Figure 13. Waveform of V_Out when D_y≈0%

下载: 全尺寸图片幻灯片

图 14 D_y≈100%时的V_Out波形

Figure 14. Waveform of V_Out when D_y≈100%

下载: 全尺寸图片幻灯片

参考文献(7)

[1]	汪贵华. 光电子器件[M]. 北京: 国防工业出版社, 2014: 115-118. WANG Guihua. Optoelectronic Devices[M]. Beijing: National defense industry press, 2014: 115-118.
[2]	郭明安, 杨少华, 罗通顶, 等. 用于高速成像的紧凑式像增强选通脉冲发生器[J]. 现代应用物理, 2016, 7(4): 041203. https://www.cnki.com.cn/Article/CJFDTOTAL-YYWL201604013.htm GUO Ming'an, YANG Shaohua, LUO Tongding, et al. A compact image intensifier gate pulse generator for high speed imaging[J]. Modern Applied Physics, 2016, 7(4): 041203. https://www.cnki.com.cn/Article/CJFDTOTAL-YYWL201604013.htm
[3]	虎俊宇, 裴承全, 田进寿, 等. ICCD选通脉冲源的设计与实验研究[J]. 光子学报, 2018, 47(9): 0911001. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201809021.htm HU Junyu, PEI Chengquan, TIAN Jinshou, et al. Design and experimental study of ICCD gated pulse source[J]. Acta Photonica Sinica, 2018, 47(9): 0911001. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201809021.htm
[4]	刘宁文, 畅里华, 肖正飞, 等. 门控型像增强器开门时间测量[J]. 强激光与粒子束, 2012, 24(10): 2447-2450. https://www.cnki.com.cn/Article/CJFDTOTAL-QJGY201210038.htm LIU Ningwen, CHANG Lihua, XIAO Zhengfei, et al. Measuring gating time of gated image intensifier[J]. High Power Laser and Particle Beams, 2012, 24(10): 2447-2450 https://www.cnki.com.cn/Article/CJFDTOTAL-QJGY201210038.htm
[5]	张昆林. 小型16mm双近贴式像增强器研究[D]. 南京: 南京理工大学, 2008: 40-41. ZHANG Kunlin. Research on minitype 16mm double-proximity image intensifier[D]. Nanjing: Nanjing University of Science and Technology, 2008: 40-41.
[6]	Photek Inc. Photomultiplier & photodiode user guide [R/OL]. www.photek.co.uk, 2016.
[7]	Onsemiinc. Design and application guide of bootstrap circuit for high-voltage gate-drive IC [R/OL]. www.Onsemi.com, 2014.