具有积分控制功能的CCD驱动电路设计  

The design of CCD with integration control function based on CPLD

作　　者：焦斌亮[1] 韩志学[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《光学仪器》2005年第3期51-54,共4页Optical Instruments

摘　　要：在许多CCD应用场合中,当局部像元产生转移寄存器难以容纳的电荷时,会弥散到相邻的像元中,破坏图像原有的信息。介绍了一款能够实现反弥散、积分时间可调的CCD芯片,详细叙述了利用CPLD产生CCD各种驱动时序的方法。最后,在光照强度不变的条件下,利用示波器测试了不同积分时间的信号输出。实验证明:设计的电路能够驱动CCD正常工作,实现了其积分控制和抗弥散功能。<Abstrcat>In many applications, the more electrons are generated in the parts of photosites that can be stored in the CCD shift register, they tend to 'bloom' or 'spill over' to neighboring pixels along the shift register, thus 'smearing' the information. In this paper, a CCD with functions of anti-blooming and integration control is introduced, the time orders of driving designed with CPLD are also expounded. In the end, the output waveforms are measured in the same illumination and different integration time. It is proved the problem is resolved perfectly with the functions.

关 键 词：CCD 积分控制 抗弥散 

分 类 号：TN386.5[电子电信—物理电子学]