320×240非制冷红外焦平面阵列驱动电路的设计  

Designing for Driving Circuit of 320×240 UFPA

作　　者：曾祥鸿[1] 刘慧 

机构地区：[1]中国船舶重工业集团公司第717研究所,湖北武汉430073 [2]宁夏石嘴山发电厂电气分厂,宁夏石嘴山753202

出　　处：《现代电子技术》2005年第20期40-41,46,共3页Modern Electronics Technique

摘　　要：在介绍了320×240非制冷红外焦平面阵列工作原理的基础上,详细分析了非制冷红外焦平面阵列驱动电路的组成原理、设计方法,重点是偏置电压电路、脉冲电压与控制信号驱动电路、焦平面工作温度检测及控制电路的设计等关键技术。提出了一种自适应工作点的驱动电路设计方法,并对主要驱动信号进行了仿真,给出了主要原理框图。试验结果表明:该电路达到了理想的效果,适用于宽的工作温度,具有体积小、实用性好、可靠性高等特点。On the basis of analysing the work principle of 320×240 UFPA,the structure of 320X 240 UFPA driving circuit is discussed, and the method of design is analyzed. The key problems are bias voltages circuit, pulse voltages and controlling signals driving circuit ,the collecting and controlling circuit for UFPA working temperature are introduced. In order to automatically adjust the working point,a way of design for driving circuit is introduced. Main driving timing sequences are simulated,and the principle block diagram is given. Experiments demonstrate the validity of the design of UFPA driving circuit. The driving circuit is fit for wide working temperature ,it has the peculiarity of small volume ,good availability and high reliability.

关 键 词：非制冷红外焦平面阵列 驱动电路 CPLD 偏置电压电路 

分 类 号：TP331[自动化与计算机技术—计算机系统结构]