摘要
为提高LED驱动电源性能和输出电流的稳定性,设计出基于AP3706的直接恒流驱动电路,以及由AP3706与恒流源组成的分布式恒流驱动电路,并进行输出电压与输出电流的实验测试.结果表明,分布式恒流驱动电路比直接恒流驱动工作更稳定,恒流效果更好,可解决直接恒流驱动电路中出现的恒流模式不稳定以及因某一支路故障导致电流增大的问题.
In order to improve the performance of LED drive power supply and the stability of the output current,a direct constant current drive circuit based on AP3706 chip and a distributed constant current drive circuit composed of AP3706 and constant current sources are designed.The output voltage and output current are tested experimentally.The results show that the distributed constant current drive circuit is more stable and the constant current effect is better than the direct constant current drive circuit.
作者
侯磊
HOU Lei(Fuzhou Polytechnic,Fuzhou,Fujian 350108,China)
出处
《宁德师范学院学报（自然科学版）》
2020年第4期352-357,共6页
Journal of Ningde Normal University(Natural Science)
关键词
LED
驱动电源
分布恒流
直接恒流
恒流源
LED
driving power
distributed constant current
direct constant current
constant current source
