| 摘要 |
<p>PURPOSE: An LED device is provided to prevent malfunctions or damage to an LED by converting AC power from a ballast into DC power for an LED. CONSTITUTION: First and second power input terminals(311,313) are respectively inserted into a first connection terminal and a second connection terminal of a lighting system for a magnetic or electromagnetic fluorescent lamp. First and second power units(331,333) remove an overvoltage or overcurrent element included in AC power from the first and second power input terminals. A rectifier(335) full-wave rectifies an AC voltage from the first and second power units. A filter unit(339) converts the rectified voltage into DC power. A driving unit(341) turns on a plurality of LEDs.</p> |
