Controlled power dissipation in a link path in a lighting system

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专利权人:

KONINKLIJKE PHILIPS N.V.

发明人:

Melanson John L.,King Eric J.

申请号：

US201113289967

公开号：

US9491845(B2)

申请日:

2011.11.04

申请国别(地区):

美国

年份:

2016

代理人:

摘要：

In at least one embodiment, a lighting system includes a link path power dissipation circuit to actively and selectively control power dissipation of excess energy in a switching power converter of the lighting system. The link path power dissipation circuit dissipates power through a link path of the switching power converter by controlling a link current of the switching power converter. In at least one embodiment, the controller controls the link path power dissipation circuit to limit the link current with a current source and dissipate power in the current source. In at least one embodiment, the link path power dissipation circuit includes a switch to limit the link current and dissipate power in the link path.

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中国工程科技知识中心

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