一种太阳能供电LED照明系统中充电控制器设计  

Design of charge controller of LED lighting system powered by solar energy

作　　者：徐敏锐 黄奇峰 王忠东 卢树峰 杨世海 

机构地区：[1]江苏省电力公司电力科学研究院,江苏南京211100

出　　处：《电源技术》2014年第4期706-708,共3页Chinese Journal of Power Sources

摘　　要：以太阳能供电的LED照明系统为研究对象,探讨了其基本构成,重点探讨了太阳能充电控制器的设计及其电路实现。设计了以PWM控制器CS51221为控制核心的充电控制器的电路,探讨了相关元器件参数的计算方法;分析了开关频率和最大占空比计算方法,设计了过电压和欠电压保护电路,启动和供电电路以及反馈电路;完成了简易太阳能供电LED照明系统电路的硬件,并对其功能及工作性能参数进行了测试和分析。结果表明,该LED照明系统满足设计要求,系统运行良好。With the LED lighting system powered by solar energy as the study object, its basic structure was discussed, and the design and its circuit of solar charge controller were discussed. With PWM controller chip CS512_2.1 as the control core of the circuit, the calculation method of related components parameters was discussed. The calculation method of the switching frequency and the maximum duty cycle, as well as the overvoltage and under voltage protection circuit, starting and power supply circuit and feedback circuit were then Analyzed. The simple hardware circuit, solar powered LED lighting system and its features and performance parameters were tested and analyzed. Results show that the LED lighting system meets the design requirements and the system runs well.

关 键 词：LED照明系统 充电控制器 CS51221 

分 类 号：TM914.4[电气工程—电力电子与电力传动]