ALTERNATING CURRENT DIRECT-COUPLED TYPE LIGHT-EMITTING DIODE LIGHTING APPARATUS

摘要

The present invention relates to an alternating current direct-coupled type light-emitting diode lighting apparatus, and more particularly, to a light-emitting diode lighting apparatus which includes a rectifier diode for converting alternating current power into direct current power, a first light-emitting diode constituted by one or more light-emitting diodes, and a second light-emitting diode constituted by one or more light-emitting diodes, the lighting apparatus including: a first constant current circuit which allows constant current to flow to the first and second light-emitting diodes; a current sensing circuit which senses sensing current flowing to the second light-emitting diode through the first light-emitting diode; a second constant current circuit which supplies second constant current to the first light-emitting diode when the sensing current does not exist; and a third constant current circuit which supplies third constant current to the second light-emitting diode when the sensing current does not exist.