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基于电子倍增电荷耦合器件(EMCCD,electronic multiplying CCD)的微光成像研究是当今的热点,在航天应用中有明显的优势和广泛的应用前景.EMCCD器件的电子倍增机制决定了其驱动具有高速高压的特点.由于对图像信息获取速率的要求越来越高,对驱动速度提出了更高的要求,然而目前超高速驱动仍是尚未完全解决的难题.总结了国内外EMCCD成像的研究进展,针对其存在的不足,提出了改良图腾柱、自耦态高频变压、集总参数电容串联谐振的驱动办法和宽范围精细调节、高效率、超低纹波具有可控上电初始态的电压转换方法,并给出了在实验方面的最新结果.最后对今后的研究工作进行了展望.
The research of low light imaging based on electron multiplying CCD (electronic multiplying CCD) is a hot topic nowadays and has obvious advantages and wide application foreground in aerospace applications.EMCCD device’s electron multiplication mechanism determines that its driving has high speed and high voltage Because of the higher and higher requirements of the image information acquisition rate, higher requirements for the drive speed, however, at present the ultra-high-speed drive is still not fully solve the problem.Considering the research progress of EMCCD imaging at home and abroad, Its existence is insufficient, put forward the improved totem pole, autotransformer high-frequency transformer, lumped capacitance capacitor series resonant driving method and a wide range of fine-tuning, high efficiency, ultra-low ripple with a controlled initial voltage Conversion method, and gives the latest results in the experiment.Finally, the future research work is prospected.