Title:
ＬＥＤレトロフィットランプ
Document Type and Number:
Japanese Patent JP5850941
Kind Code:
B2
Abstract:
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.
Inventors:
Deppe Carsten
Soerlander Georg
Ladder Matcher Harald Joseph Gunther
Tao Haimin
Jeans William Peter Mettitildes Marie
Soerlander Georg
Ladder Matcher Harald Joseph Gunther
Tao Haimin
Jeans William Peter Mettitildes Marie
Application Number:
JP2013534412A
Publication Date:
February 03, 2016
Filing Date:
October 11, 2011
Export Citation:
Assignee:
KONINKLIJKE PHILIPS N.V.
International Classes:
H05B37/02; H05B44/00
Domestic Patent References:
| JP7007946A |
Foreign References:
| WO2001001385A1 | ||||
| WO2009147563A1 |
Attorney, Agent or Firm:
Patent Services Corporation m&s Partners
Akihiko Miyazaki
Akihiko Miyazaki
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