摘要
提出了一种基于NCP1200的高功率因数恒流型LED驱动电源,该电路工作时利用三极管组成的可变增益放大器,大大减少了一次整流时产生的脉冲电流,很好地实现了APFC方式整流和恒流驱动功能.实验表明,该电路结构简单,工作稳定可靠,具有很高的性价比.
LED driving power supply is presented, which is high-power-factor and constant-current by using the NCP1200. The circuit using the variable gain amplifier is composed of triode, which greatly reduces the pulse current at one rectification and effectively achieve the APFC rectifier and constant current driving func- tion. The experiments show that circuit is stable and reliable, having simple circuit, and has a higher cost per- formance.
出处
《延边大学学报（自然科学版）》
CAS
2013年第1期59-62,共4页
Journal of Yanbian University（Natural Science Edition）
