LIGHTING APPARATUS

摘要

Disclosed is a lighting apparatus which includes LEDs and reduces flicker. The lighting apparatus may secure a charge voltage by performing a charge operation using a current corresponding to a rectified voltage equal to or more than a preset level, and compensate for the rectified voltage provided to a lighting unit including LED groups by performing a discharge operation for the charge voltage in response to the rectified voltage less than the preset level, thereby reducing flicker.

主权项

1. A lighting apparatus which uses a rectified voltage, comprising:
a lighting unit comprising a plurality of LEDs configured to emit light in response to the rectified voltage and divided into a plurality of LED groups; a flicker control circuit configured to secure a charge voltage by performing a first charge operation based on a magnitude-limited current using the rectified voltage which is equal to or more than a first level and provided through one or more LEDs, and provide the charge voltage to an input terminal of the lighting unit through a first discharge operation, in response to the rectified voltage less than a second level lower than the first level; and a control unit configured to provide a current path for light emission of the lighting unit, wherein the lighting unit comprises one or more capacitors connected in parallel to the respective LED groups and configured to perform a second charge or discharge operation.