DIFF Main Group
H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
Introduced: January 2020
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
IPC defines codes here since 2020.
Child Classifications
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- H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits since 2020 IPC+CPC Available in IPC and CPC
- H05B 45/60 Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED] since 2022 IPC+CPC Available in IPC and CPC