利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.008 秒)

    A RETROFIT LIGHT EMITTING DIODE, LED, TUBE FOR REPLACING A FLUORESCENT TUBE
    2.
    发明公开
    A RETROFIT LIGHT EMITTING DIODE, LED, TUBE FOR REPLACING A FLUORESCENT TUBE 审中-公开

    公开(公告)号：EP3566546A1

    公开(公告)日：2019-11-13

    申请号：EP17818113.7

    申请日：2017-12-14

    申请人： Signify Holding B.V.

    发明人： ABBO, Anteneh Alemu ,  TAO, Haimin ,  ACKERMANN, Bernd ,  ARULANDU, Kumar ,  CHOW, Wai Pang ,  STOBBELAAR, Pieter Johannes ,  VAN HEES, Ger

    IPC分类号： H05B33/08

    摘要： A retrofit Light Emitting Diode, LED, tube for replacing a fluorescent tube, wherein said retrofit LED tube is arranged to be connected to a ballast, said retrofit LED tube comprising a ballast determining unit arranged for identifying a type of ballast connected to said retrofit LED tube by controlling an output voltage of said power rectifier to a first voltage and measuring a first current provided by said power rectifier, controlling said output voltage of said power rectifier to a second voltage and measuring a second current provided by said power rectifier, wherein said second voltage differs from said first voltage and determining said type of ballast based on said first and second output voltages and said measured first and second currents, wherein said ballast determining unit is further arranged to configure said configurable matching circuit based on said determined type of ballast.