Electronic circuits for driving series connected light emitting diode strings

United States of America Patent

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May 1, 2012
Grant Date
May 21, 2009
app pub date
Nov 10, 2008
filing date
Nov 16, 2007

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Abstract

Electronic circuits provide an error signal to control a regulated output voltage signal generated by a controllable DC-DC converter for driving one or more series connected strings of light emitting diodes.

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Patent Owner(s)

Patent Owner	Address
ALLEGRO MICROSYSTEMS LLC	955 PERIMETER ROAD MANCHESTER NH 03103-3353

International Classification(s)

H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....

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[Patents Count]

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Inventor Name	Address	# of filed Patents	Total Citations
AlNahas, Bassem	Manchester, US	10	237
Mangtani, Vijay	Nashua, US	41	1609
Szczeszynski, Gregory	Nashua, US	128	1367

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Electronic circuits for driving series connected light emitting diode strings

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United States of America Patent

12267645

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PATENT NO	8169161
APP PUB NO	20090128045A1
SERIAL NO	12267645
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
May 01, 2012	US,8169161,B2 US8169161B2	GRANTED PATENT AS SECOND PUBLICATION
May 21, 2009	US,20090128045,A1 US20090128045A1	FIRST PUBLISHED PATENT APPLICATION

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12267645

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