EP 3777487 A1 20210217 - METHOD AND DEVICE OF DETECTING STATUS OF LAMP, LAMP DRIVER
Title (en)
METHOD AND DEVICE OF DETECTING STATUS OF LAMP, LAMP DRIVER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERFASSUNG EINES LAMPENZUSTANDES, LAMPENTREIBER
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION D'ÉTAT DE LAMPE, CIRCUIT D'ATTAQUE DE LAMPE
Publication
Application
Priority
CN 2018086798 W 20180515
Abstract (en)
[origin: WO2019218129A1] A method and device of detecting the status of a lamp, and a lamp driver are provided. The status of the lamp can be determined according to degrees of variations of output voltages of a driver of the lamp (101). Therefore, the status of the lamp can be detected accurately no matter what types of capacitors are used at the output side of the driver. Furthermore, no additional hardware or electronic element is needed, thus the cost and space may be saved.
IPC 8 full level
H05B 41/292 (2006.01); G01R 31/00 (2006.01); H05B 45/50 (2022.01)
CPC (source: EP US)
H05B 45/14 (2020.01 - EP US); H05B 45/50 (2020.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019218129 A1 20191121; CN 112189380 A 20210105; CN 112189380 B 20210917; EP 3777487 A1 20210217; EP 3777487 A4 20211117
DOCDB simple family (application)
CN 2018086798 W 20180515; CN 201880093422 A 20180515; EP 18918921 A 20180515