(19)
(11) EP 4 292 401 A1

(12)

(43) Date of publication:
20.12.2023 Bulletin 2023/51

(21) Application number: 21936373.6

(22) Date of filing: 14.04.2021
(51) International Patent Classification (IPC): 
H05B 45/10(2020.01)
H05B 45/375(2020.01)
H05B 45/325(2020.01)
H05B 45/3725(2020.01)
(52) Cooperative Patent Classification (CPC):
H05B 45/325; H05B 45/375; H05B 45/10; H05B 45/3725
(86) International application number:
PCT/CN2021/087126
(87) International publication number:
WO 2022/217480 (20.10.2022 Gazette 2022/42)
(84) Designated Contracting States:
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 States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: Tridonic GmbH & Co. KG
6851 Dornbirn (AT)

(72) Inventors:
  • ZHANG, Xiongwu
    Shenzhen, Guangdong 518131 (CN)
  • YANG, Jiaqi
    Shenzhen, Guangdong 518131 (CN)

(74) Representative: Rupp, Christian 
Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7
80333 München
80333 München (DE)


(56) References cited: : 
   
       


    (54) POWER SUPPLY CIRCUIT, CONTROLLING METHOD, LIGHTING DEVICE DRIVER AND LIGHTING EQUIPMENT