THE INVENTION RELATES TO THE FIELD OF LIGHTING APPLICATIONS, IN PARTICULAR LED BASED LIGHTING APPLICATIONS

Title:

THE INVENTION RELATES TO THE FIELD OF LIGHTING APPLICATIONS, IN PARTICULAR LED BASED LIGHTING APPLICATIONS

Document Type and Number:

WIPO Patent Application WO/2017/183979

Kind Code:

A3

Abstract:

A modular system comprising a first component comprising an LED driver and a second component comprising a light engine is described. the LED driver comprising: a.a switched mode power converter configured to output a supply current; b.a first control unit configured to control a switch of the switched mode power converter, thereby controlling the supply current; the light engine comprising: c.an LED assembly configured to receive the supply current, the LED assembly comprising a plurality of LEDs and one or more switches arranged in series or in parallel with one or more LEDs of the plurality of LEDs, and d.a second control unit configured to control the one or more switches of the LED assembly, thereby controlling an LED current through the plurality of LEDs; wherein the first control unit is configured to control an amplitude of the supply current, the second control unit is configured to control a duty cycle of the LED current through the plurality of LEDs and wherein the first and second control unit are configured to synchronize a switching operation of the switch of the switched mode power converter with a switching operation of the one or more switches of the light engine.

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Inventors:

SAES MARC (NL)
LYDECKER STEPHEN HAIGHT (US)
VERSTEEGDE TIJS (NL)

Application Number:

PCT/NL2017/050255

Publication Date:

January 11, 2018

Filing Date:

April 21, 2017

Export Citation:

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Assignee:

ELDOLAB HOLDING BV (NL)

International Classes:

H05B44/00

Foreign References:

US20140333229A1	2014-11-13
US20070244366A1	2007-10-18
US20080116818A1	2008-05-22
US20060022214A1	2006-02-02
US20120235589A1	2012-09-20
US20120187845A1	2012-07-26
US20150022112A1	2015-01-22
US20160088697A1	2016-03-24
US20130106298A1	2013-05-02
US20150123550A1	2015-05-07

Attorney, Agent or Firm:

DE WEERDT, R.E.M.L. (EP&C) (NL)

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