摘要
为了实现野外照明和USB充电的需求,提出了一种基于锂电池的太阳能灯和移动电源系统的设计方案,分别给出了总体方案和详细设计方案,并完成了系统的电路设计和测试。系统包含四个模块电路:太阳能充电模块、USB接口充电模块、高亮度LED驱动模块以及USB接口供电输出模块,除USB接口充电模块使用线性电源芯片外,其他模块均采用开关电源芯片设计,以提高效率,缩小体积。系统通过了实际的硬件测试,测试结果表明,该系统工作正常、输出准确,达到了设计要求,可以推广使用。
In order to realize the outdoor lighting and USB charging requirements,a design scheme of solar lamps and por-table charger based on lithium batteries is presented in this paper. The overall plan and the detailed design scheme are put for-ward. The circuit design and system testing are completed. The system consists of four modules:solar charging module,USB in-terface charging module,high brightness LED driver module and power supply outputting module through USB interface. In addi-tion to the USB interface charging module using linear power chip,other modules are designed with switching power supply chips so as to reduce the size of the system and improve the efficiency. The system passed the test exam. The actual test results show that the system is working properly,its output is accurate,its circuit reaches the design requirements,and it can be popularized.
出处
《现代电子技术》
2014年第19期160-162,共3页
Modern Electronics Technique
