Led retrofit lamp

The present invention relates to an LED lamp (1) adapted for operation with an alternating current. The LED retrofit lamp (1) comprises a LED unit (7, 7', 7'', 7''') and a compensation circuit with a controllable switching device (9, 9'), connected parallel to said...

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Bibliographic Details
Main Authors TAO HAIMIN, RADERMACHER HARALD JOSEF GUENTHER, DEPPE CARSTEN, SAUERLAENDER GEORG, JANS WILLIAM PETER MECHTILDIS MARIE
Format Patent
LanguageChinese
English
Published 26.06.2013
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:The present invention relates to an LED lamp (1) adapted for operation with an alternating current. The LED retrofit lamp (1) comprises a LED unit (7, 7', 7'', 7''') and a compensation circuit with a controllable switching device (9, 9'), connected parallel to said LED unit (7, 7', 7'', 7''') to provide an alternate current path. A control unit (10, 10', 10'') is adapted to control said switching device (9, 9') in a compensation mode in which said switching device (9, 9') is set to the conducting state for the duration of a shunt period in each half cycle of the alternating current to allow adapting the power/current of the inventive LED lamp (1), so that a versatile and optimized operation of the lamp (1) is possible.
Bibliography:Application Number: CN201180050418