LED LIGHTING APPARATUS AND CONTROL CIRCUIT THEREOF

摘要

Disclosed are an LED lighting apparatus and a control circuit thereof which controls the brightness of a lamp including LEDs using a dimmer. The LED lighting apparatus and the control circuit use a starting current based on a rectified voltage, in order to supply a holding current to the dimmer in a state where a lamp including LEDs is turned off.

主权项

1. A control circuit of an LED lighting apparatus, which receives a rectified voltage corresponding to an AC voltage passed through a dimmer and controls a plurality of LED groups included in a lamp to emit light in response to the rectified voltage, the control circuit comprising:
a regulation circuit configured to provide a selective current path to the plurality of LED groups which emit light in response to the rectified voltage; and a current control circuit configured to sense a current of the current path, guarantee a flow of starting current based on the rectified voltage during a time including a turn-off period of the lamp, and control supply of a holding current to the dimmer.