摘要
提出一款新型便携式多功能LED台灯的设计,采用STM 32单片机控制台灯,通过触摸动作无极调节LED亮度;支持USB与锂电池两种供电方式,达到便携的优势;增加人体感应模块产生语音提示,实现节能与保护眼睛的作用。主要模块有LED升压恒流电路模块、触摸调光模块、电池管理模块等。从测试数据可以看出,输入电压3.5~5.5 V,输出电流稳定在202 mA。采用DC-DC开关电源的结构,使得该台灯的效率较高,在91%左右;且输入电压线性调整率很好,达到0.1%。
A new design of portable multifunctional LED lamp was proposed with an STM32 microcontroller,touch-triggered stepless dimming,power supply from both a USB connector and lithium batteries,voice alerts added to the human body induction module for energy saving and eye protection.The lamp consisted of a LED boost constant current circuit module,a touch-triggered dimming module,and a battery management module.Testing showed that the input voltage ranged from 3.5 to 5.5 V,and the output current was 202 mA.The DC-DC switch structure improved the efficiency of the lamp to about 91%.The line regulation of the input voltage reached 0.1%.
作者
骆妙艺
陈建民
LUO Miaoyi;CHEN Jianmin(School of Aviation,Liming Vocational University,Quanzhou 362000,China)
出处
《黎明职业大学学报》
2023年第1期102-108,共7页
Journal of LiMing Vocational University
基金
福建省中青年教师教育科研项目(科技类)(JAT200833)。
