LIGHT-EMITTING ELEMENT DRIVING DEVICE, LIGHT-EMITTING DEVICE, AND VEHICLE

摘要

A light-emitting element driving device having: a reset signal generation unit that generates a reset signal in accordance with the current flowing in a light-emitting element; a set signal generation unit that generates a set signal in accordance with the anode voltage of the light-emitting element; and an output voltage supply unit that, in accordance with the reset signal and the set signal, generates an output voltage from an input voltage, and supplies the output voltage to the light-emitting element. The set signal generation unit has: a current generation unit that generates a current in accordance with the anode voltage of the light-emitting element; a charging unit that charges the current generated by the current generation unit; and a comparator that generates the set signal in accordance with the result of a comparison of a reference voltage and the charging voltage of the charging unit.