LED driver, lighting system and driving method with prolonged lifetime of luminous output

• 收藏
• 分享

专利权人:

PHILIPS LIGHTING HOLDING B.V.

发明人:

Eberson Etienne Nicolaas Kathalijntje Paulus Marie,Kalkschmidt Christian

申请号：

US201414913137

公开号：

US9900939(B2)

申请日:

2014.08.18

申请国别(地区):

美国

年份:

2018

代理人:

摘要：

An LED driver implements a first constant-current drive scheme for a first range of sensed voltages up to a threshold voltage. After this, a second drive scheme is implemented with a current lower than the constant current of the first drive scheme.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/