| 摘要 |
<P>PROBLEM TO BE SOLVED: To make unnecessary a power supply installation space by integrating an LED board with the power supply, to enable driving to light on an LED only by connection to the commercial power supply of AC 100 V, and to make wiring work easy at installation. <P>SOLUTION: On a printed board 2 of an LED board unit 1, each LED 3 of high luminance is mounted with a predetermined pitch throughout a substantially full length. A power circuit for driving to light on the LED 3 is mounted on a vacant portion on the side of the LED 3 column. To the power circuit, commercial power supply of AC 100 V is directly applied. The LED 3 is driven by a constant current. On both ends of the printed board 2, a male connector 12 and a female connector 13 are disposed, and adjacent LED board units 1 are connected by the connectors 12, 13. <P>COPYRIGHT: (C)2013,JPO&INPIT |
