摘要
针对高性能LED驱动成本偏高的问题,基于原边反馈与峰值电流控制方案,设计了一种经济型反激式电源拓扑,采用恒流驱动芯片BP9021A实现了其硬件电路,性能测试表明,该设计具有恒流特性好、性能稳定、结构简洁和成本低廉等优点.
For the high price of high-performance LED driver,a novel flyback power supply in peak current mode is designed by primary-side feedback,which is introduced in the aspect of topology,hardware and performance.The test results proved that it is a practical isolated power supply for LED with the characters of constant current,steady performance,simple structure,small size and low cost.
出处
《广州大学学报（自然科学版）》
CAS
2014年第6期65-68,共4页
Journal of Guangzhou University:Natural Science Edition
基金
国家自然科学青年基金资助项目(51207026)
关键词
原边反馈
峰值电流模式
反激变换器
LED恒流驱动
primary-side feedback
peak current mode
flyback converter
constant current LED driver
