LED调光电源控制端EMI解决方案
EMI Solution for LED Dimmable Driver Control Side
汪彪1
作者信息
- 1. 赛尔富电子有限公司,浙江宁波 315100
- 折叠
摘要
随着大家对节能意识的提高,许多灯具不是单一的亮度,它需要能调光来满足不同时段的亮度.调光方式很多,如前后切相调光、1-10 V调光和数字调光等方式,本文提到的是1-10 V调光方式.为了提高调光LED电源门槛,国际巨头要求进入欧盟产品需通过控制端EMI.这对研究人员是一种挑战,但通过仔细研究,掌握原理,还是轻松越过这道门槛.
Abstract
With the improvement of people's awareness on energy saving,many lamps are not with only one brightness level,they need to be able to adjustable to meet different brightness at different periods.There are many dimming methods,such as front and rear cut dimming,l-10 V dimming,digital dimming,etc.What this article mentioned is the 1-10 V dimming method.In order to raise the threshold of dimmable LED power driver,international giants require products entering the European Union have to pass the control side EMI.This was a challenge for our company at the first,but we easily cross this threshold after carefully studied and knew the principle well.
关键词
1-10/V调光/EMI/共模抑制/铁氧体磁芯阻抗-频率特性Key words
1-10 V dimming/EMI/common mode rejection/ferrite core impedance-frequency characteristics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据