High efficiency LED driving method for odd number of LED strings

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United States of America Patent

PATENT NO 8754581
SERIAL NO

13717755

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Abstract

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An arrangement wherein a plurality of LED strings are driven with a balanced drive signal, i.e. a drive signal wherein the positive side and negative side are of equal energy over time, is provided. In a preferred embodiment, the drive signal is balanced responsive to a capacitor provided between a switching network and a driving transformer. Balance of current between various LED strings is provided by a balancing transformer.

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG ELECTRONICS CO LTD129 SAMSUNG-RO YEONGTONG-GU SUWON-SI GYEONGGI-DO 16677 16677

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jin, Xiaoping Orange, US 49 301
Lin, Ting-Hui Taipei, TW 2 2

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