用MAX5438与MAX749实现液晶对比度的调节  

Adjusting the Contrast of LCD Display with MAX5438 and MAX749

作　　者：万里[1] 禹丹[1] 程远[1] 陈光东[1] 

机构地区：[1]华中科技大学控制科学与工程自动化所,湖北武汉430074

出　　处：《仪表技术》2005年第3期51-52,共2页Instrumentation Technology

摘　　要：介绍两种常用的获得可调负偏压的方法及其相应的硬软件设计。以MAX5438和MAX749的实用电路为例,给出了两种电路的实验数据。With the practical circuits of MAX5438 and MAX749, the two usual methods of obtaining adjustable negative voltages, their hardware design and software design were introduced. The experimental data were presented

关 键 词：负电压 液晶显示器 对比度调节 

分 类 号：TM930[电气工程—电力电子与电力传动]