LED DRIVER, LIGHTING SYSTEM AND DRIVING METHOD WITH PROLONGED LIFETIME OF LUMINOUS OUTPUT.

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专利权人:

Philips Lighting Holding B.V.

发明人:

EBERSON, Etienne Nicolaas Kathalijntje Paulus,KALKSCHMIDT, Christian

申请号：

EP20140789873

公开号：

EP3036974(B1)

申请日:

2014.08.18

申请国别(地区):

欧洲专利局

年份:

2017

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/