公开(公告)号：EP3562271A1

公开(公告)日：2019-10-30

申请号：EP19172600.9

申请日：2016-03-24

申请人： Silicon Hill B.V.

发明人： SEGERS, Maarten Willem ,  SHOUNAK, Roy ,  STEFFENS, Paul ,  GROENENDAAL, Toon ,  HONOLD, Jürgen

IPC分类号： H05B33/08

摘要： An LED lamp arrangement adapted to replace a fluorescent lamp in a luminaire having a ballast for supplying power to the lamp. The LED lamp arrangement comprises a plurality of LEDs arranged in a plurality of groups, wherein the groups of LEDs are connectable in a plurality of circuit configurations, including at least a first circuit configuration, and a second circuit configuration having a different circuit arrangement of the groups of LEDs in which at least a portion of the groups of LEDs are connected into the circuit differently than in the first circuit configuration. The LED lamp arrangement further comprises means for sensing a condition indicating that current through at least a portion of the plurality of LEDs is below a threshold, and generating an output, and means for switching the circuit configuration of the plurality of LEDs on the basis of the output of the means for sensing. The means for switching the circuit configuration is adapted to switch between the first circuit configuration and the second circuit configuration at a certain duty cycle, and the LED lamp arrangement generates a luminous flux at least 200 lumens.

公开(公告)号：EP3449694A1

公开(公告)日：2019-03-06

申请号：EP17722399.7

申请日：2017-04-25

申请人： Silicon Hill B.V.

发明人： SHOUNAK, Roy

IPC分类号： H05B33/08