responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits

Introduced: January 2020

Last revised: January 2022

Full Title

Circuit arrangements for operating light-emitting diodes [LED] > responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Subclass:: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

5 direct subcodes

Child Classifications

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H05B 45/52 in a parallel array of LEDs
H05B 45/54 in a series array of LEDs
H05B 45/56 involving measures to prevent abnormal temperature of the LEDs
H05B 45/58 involving end of life detection of LEDs
H05B 45/59 for reducing or suppressing flicker or glow effects