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PCE
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DIFF Subgroup
H05B 45/44

with an active control inside an LED matrix

Introduced: January 2020

Full Title

Circuit arrangements for operating light-emitting diodes [LED] > Details of LED load circuits > with an active control inside an LED matrix

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2020.

Child Classifications

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  • H05B 45/46 having LEDs disposed in parallel lines since 2020 IPC+CPC Available in IPC and CPC
  • H05B 45/48 having LEDs organised in strings and incorporating parallel shunting devices since 2020 IPC+CPC Available in IPC and CPC