| 摘要 |
<p>The present invention relates to an LED lighting device. The LED lighting device according to the present invention comprises a rectification circuit part for rectifying an AC voltage to a DC voltage while receiving an external AC power; a boosting circuit part for boosting and outputting so that the rectified DC voltage can be a DC voltage greater than a voltage required in an LED module as much as the set times; a constant current control part for receiving an output voltage from the boosting circuit part and supplying a constant current to the LED module; and the LED module for receiving the constant current from the constant current control part and including a plurality of LEDs arranged in series/parallel. The present invention may raise the voltage supplied to the LED module through the boosting circuit part, thereby improving efficiency of the current using the LED module having the reduced parallel connection of the LEDs relative to the existing LED module. [Reference numerals] (110) Rectification circuit part; (120) Voltage boosting circuit part; (130) Constant current control part; (140) LED module; (150) First smoothing circuit part; (155) Second smoothing circuit part; (160) Power factor correction part; (170) Delay processing part; (180) Surge voltage protection circuit part; (190) First filter circuit part; (195) Second filter circuit part; (AA) AC power</p> |
