A light emission driving device includes an output voltage supply unit arranged to generate an output voltage from an input voltage so as to supply the output voltage to a load, a determination unit arranged to determine whether or not a ground fault due to abnormality may have occurred on the basis of an anode voltage of the load, and a signal output unit arranged to externally output a signal indicating that a ground fault due to abnormality may have occurred when the determination unit determines that a ground fault due to abnormality may have occurred. The output voltage supply unit does not perform generation stop of the output voltage by a trigger of determination by the determination unit that a ground fault due to abnormality may have occurred.
LIGHT EMITTING ELEMENT DRIVING DEVICE, LIGHT EMITTING DEVICE, AND VEHICLE
2016-05-05
Patent
Electronic Resource
English
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
LIGHT-EMITTING ELEMENT DRIVING DEVICE, LIGHT-EMITTING DEVICE, AND VEHICLE
European Patent Office | 2016
|European Patent Office | 2017
|Light-emitting element driving device, light-emitting device, and vehicle
European Patent Office | 2019
|LIGHT EMITTING ELEMENT DRIVING DEVICE, LIGHT EMITTING DEVICE, AND VEHICLE
European Patent Office | 2017
|Light-emitting element driving device, light-emitting device, and vehicle
European Patent Office | 2018
|