LED lighting device using ballast for fluorescent lamp

摘要

Disclosed is an LED lighting device using a ballast for a fluorescent lamp, the LED lighting device including: an LED part which includes at least one LED device; a rectifier which rectifies a power signal outputted from the ballast for a fluorescent lamp; and a controller which receives an output signal of the rectifier and controls power transmitted from the ballast to the LED part.

主权项

1. A light emitting diode (LED) lighting device using a ballast for a fluorescent lamp, the LED lighting device comprising:
an LED part including at least one LED device; a rectifier configured to rectify a power signal outputted from the ballast for a fluorescent lamp; a controller configured to receive an output signal of the rectifier and control power transmitted from the ballast to the LED part; a switch connected between the rectifier and the LED part and configured to electrically connect or disconnect current flow between the rectifier and the LED part; and a switch controller configured to control on/off operation of the switch based on an output voltage of the rectifier and adjust an electrical connection time of the switch according to device values of a resonance circuit of the ballast.