摘要
为了解决LCD屏的背光亮度调节,采用DC/DC升压转换器AP3032芯片设计了一款直流TFT-LCD背光驱动电源,通过调节PWM信号的占空比,实现背光状态的实时调节。电路简洁实用,易于实现。经实际使用,其工作可靠,且具有良好的稳定性。
In order to adjust the backlight brightness of LCD screen,a DC TFT-LCD backlight driving power supply is designed by using DC/DC boost converter AP3032 chip.By adjusting the duty cycle of the PWM signal,the real-time adjustment of the backlight state is realized.The circuit is simple,practical and easy to realize.After practical use,it works reliably and has good stability.
作者
司佑全
李艳生
张学文
SI You-quan;LI Yan-sheng;ZHANG Xue-wen(College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002,China)
出处
《湖北师范大学学报（自然科学版）》
2020年第3期84-86,共3页
Journal of Hubei Normal University：Natural Science
基金
校企合作项目:基于A64和Android的PLC组态系统(201707)。
关键词
芯片AP3032
液晶显示器
恒流源驱动
背光调节
chip AP3032
liquid crystal display
constant current source driving
backlight adjustment
