| 摘要 |
The present invention relates to a driving circuit and, more particularly, to a light emitting element driving circuit which uniformly drives a plurality of light emitting element groups in general according to a change in the size of AC voltage with respect to an AC driving light emitting element, and can relieve a flicker by deleting a non-light-emission section. The disclosed light emitting element driving circuit comprises: a plurality of light emitting element groups; a rectification unit for generating and outputting driving voltage which drives the light emitting element groups by receiving AC power and performing a full-wave rectification; a switch control unit which connects the light emitting element groups in series or parallel; a driving current control unit for controlling driving current flowing to the light emitting element groups; and an auxiliary power supply unit for charging electric charge at greater than or equal to a forward voltage level for driving the light emitting element groups, and supplying the charged electric charge in a section less than the forward voltage level in which the driving of the light emitting element groups stops. Accordingly, light efficiency is improved, and a flicker phenomenon can be prevented. |
