轻工机械2011，Vol.29Issue(5)：75-78,4.DOI:10.3969/j.issn.1005-2895.2011.05.020
家用可调光LED照明电源设计
Design of Dimmable LED Power Supply Used in Household Lighting
陈智勇 1马钧华1
作者信息
- 1. 浙江大学电气工程学院,浙江杭州310027
- 折叠
摘要
Abstract
A design of dimmable LED power supply for 220 Vac is introduced. The input 220 Vac 50Hz power went through a cutting phase dimmer regulator firstly, and then the power was transferred to LED by a BUCK circuit. Based on the control of SSL2101 and measuring the dimming command from the cut phase waveshape, the frequency and duty cycle of PWM was controlled to obtain the LED lamp dimmable; the dimmable effect is similar to a nominal electric incandescent lamp. The test result shows that this design of dimmable LED power supply is feasible and has high efficiency and small size. It has been used in household lighting products.关键词
电子电源/LED电源/脉宽调制/可调光Key words
electronic power supply/LED power supply/PWM (Pulse Width Modulation)/dimmable分类
信息技术与安全科学引用本文复制引用
陈智勇,马钧华..家用可调光LED照明电源设计[J].轻工机械,2011,29(5):75-78,4.
