WO2010085748A3 - Combined serial/parallel led configuration and single layer pcb containing the same - Google Patents

Combined serial/parallel led configuration and single layer pcb containing the same Download PDF

Info

Publication number
WO2010085748A3
WO2010085748A3 PCT/US2010/021988 US2010021988W WO2010085748A3 WO 2010085748 A3 WO2010085748 A3 WO 2010085748A3 US 2010021988 W US2010021988 W US 2010021988W WO 2010085748 A3 WO2010085748 A3 WO 2010085748A3
Authority
WO
WIPO (PCT)
Prior art keywords
leds
same
assembly
pcb
single layer
Prior art date
Application number
PCT/US2010/021988
Other languages
French (fr)
Other versions
WO2010085748A2 (en
Inventor
William Dunn
David Williams
Original Assignee
Manufacturing Resources International, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manufacturing Resources International, Inc. filed Critical Manufacturing Resources International, Inc.
Publication of WO2010085748A2 publication Critical patent/WO2010085748A2/en
Publication of WO2010085748A3 publication Critical patent/WO2010085748A3/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits

Abstract

An LED circuit using a combination of series and parallel arrangements for optimum current sharing between LEDs. The current paths allow an LED to fail without resulting in other LEDs failure or noticeable luminance variance across the circuit. Some embodiments use metallic PCB technology which permits optimum thermal regulation of heat generated by the LEDs. Exemplary embodiments can be used with a single-layer PCB where only one layer of conducting material must be placed on the substrate. This results in a thinner, lighter, and cheaper assembly. The rear surface of the PCB may contain heat sinks or fins and may have air (or other gaseous matter) moved across the surface and/or heat sinks to facilitate cooling of the assembly. An LCD assembly using the same is also disclosed.
PCT/US2010/021988 2009-01-23 2010-01-25 Combined serial/parallel led configuration and single layer pcb containing the same WO2010085748A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US14706309P 2009-01-23 2009-01-23
US61/147,063 2009-01-23
US15287909P 2009-02-16 2009-02-16
US61/152,879 2009-02-16
US15314809P 2009-02-17 2009-02-17
US61/153,148 2009-02-17
US25229509P 2009-10-16 2009-10-16
US61/252,295 2009-10-16

Publications (2)

Publication Number Publication Date
WO2010085748A2 WO2010085748A2 (en) 2010-07-29
WO2010085748A3 true WO2010085748A3 (en) 2010-09-30

Family

ID=42356417

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/021988 WO2010085748A2 (en) 2009-01-23 2010-01-25 Combined serial/parallel led configuration and single layer pcb containing the same

Country Status (1)

Country Link
WO (1) WO2010085748A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2974671B1 (en) * 2011-04-28 2013-04-12 Saint Gobain LIGHT-EMITTING DIODE MODULE AND LUMINOUS GLAZING WITH SUCH A DIODE MODULE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6642666B1 (en) * 2000-10-20 2003-11-04 Gelcore Company Method and device to emulate a railway searchlight signal with light emitting diodes
WO2005051054A2 (en) * 2003-11-17 2005-06-02 Ng James K Bi-directional led light
US20060125418A1 (en) * 2004-12-15 2006-06-15 Bourgault Jean S Power supply for LED signal
US20090009102A1 (en) * 2006-02-14 2009-01-08 Koninklijke Philips Electronics N.V. Lighting device with controllable light intensity

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6642666B1 (en) * 2000-10-20 2003-11-04 Gelcore Company Method and device to emulate a railway searchlight signal with light emitting diodes
WO2005051054A2 (en) * 2003-11-17 2005-06-02 Ng James K Bi-directional led light
US20060125418A1 (en) * 2004-12-15 2006-06-15 Bourgault Jean S Power supply for LED signal
US20090009102A1 (en) * 2006-02-14 2009-01-08 Koninklijke Philips Electronics N.V. Lighting device with controllable light intensity

Also Published As

Publication number Publication date
WO2010085748A2 (en) 2010-07-29

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