照明工程学报2016，Vol.27Issue(3)：56-60,5.DOI:10.3969/j.issn.1004-440X.2016.03.000
交流直接驱动的可调光大功率LED照明系统的设计
Design of Drived by AC Directly High Power LED Lighting System with Dimming
摘要
Abstract
Driving LED chip by alternating current is the direction of the LED power supply development . The LED lighting system is designed in the paper. The LED lighting system with PWM dimming is directly driven by Power Frequency AC, and it is not driven by electrolytic capacitor or transformer. The Analysis of the principle of sectional LED circuit directly driven by AC and the design of PWM dimming circuit are introduced. The experimental results show that, the LED lighting system has good dimming performance, and the characteristics of low THD value and high power factor have certain application value.关键词
交流驱动/分段式驱动/PWM调光/LEDKey words
AC drive/sectional driving/PWM dimming/LED分类
动力与电气工程引用本文复制引用
潘超,刘廷章,邹雅君,张颖婍,周壮丽..交流直接驱动的可调光大功率LED照明系统的设计[J].照明工程学报,2016,27(3):56-60,5.基金项目
上海市科委课题(13111102500),上海市自然科学基金-面上项目(13ZR1417000) （13111102500）
