便携式场发射显示器驱动电路设计  

Portable FED Drive Circuit Design

作　　者：徐陈帅 杨延宁[1] 李小敏[1] 马玉昆[1] 张雄 

机构地区：[1]延安大学物理与电子信息学院

出　　处：《电子世界》2017年第22期119-120,共2页Electronics World

基　　金：2017地方高校国家级大学生创新创业训练计划项目(201710719019);陕西省高水平大学学科建设专项基金(NO.2015SXTS02);延安大学引导项目(YD2016-02);2016年陕西省大学生创新创业训练计划项目(1559;1569);2016年延安大学大学生创新训练项目(D2016109)

摘　　要：为了开发低压驱动的FED(Field Emission Display),促进场发射显示器在便携电子设备方面的应用。阐述了FED内部电子发射机制以及显示原理以及FED驱动电路电源的特点。讨论了开关型的升压芯片LM2577与TPS55340在功耗、发热、稳压等方面的特点,分别采用两种芯片设计了升压电路并进行分析比较。采用开关型升压电路TPS55340电路对锂电池进行升压达到了FED显示器的驱动电压,用线性稳压器LM1117实现了控制芯片的电源驱动,实现了FED便携式设备上的运用。实验表明该驱动电路具有低功耗、发热低、纹波小的优点,为便携设备FED屏幕电源的设计提供了新的思路。To promote the application of FED in portable electronic devices and in order to develop low-voltage driven FED（Field Emission Display）.The FED’s internal electron emission mechanism and display theory and the characteristics of FED drive circuit power are described.The characteristics of switch-type booster chip LM2577 and TPS55340 in power consumption,evolution of heat and voltage regulation are analyzed.The booster circuit is designed by two kinds of chips.It is found that the switching voltage booster circuit TPS55340 circuit to boost the lithium battery to reach the FED display drive voltage,and finally,with a linear regulator LM1117 to achieve the control chip power supply,to achieve the FED screen power used on the portable device.The experimental show that the drive circuit has the advantages of low power consumption,low heat and low ripple,which provides a new idea for the design of FED screen power supply in portable devices.

关 键 词：FED LM2577 TPS55340 便携式 驱动电路 

分 类 号：TN873[电子电信—信息与通信工程]