| 摘要 |
<p>The present invention relates to an alternating current LED driving circuit with a function of adjusting a light deviation which always maintains the average current amount of each current supply channel and makes the intensities of light from all individual LEDs same, by adjusting the amount of current passing through each current supply channel, although the number of LED of LED units is varied in the individual current supply channel with respect to each LED unit of LED lighting. According to the present invention, the alternating current LED driving circuit with the function of adjusting the light deviation comprises: a power source supply unit which supplies external power source; a LED lighting unit including from a first LED unit which is located closest to a contact point of the power source supply unit to a nth LED unit which is located farthest from the power source supply unit; a plurality of LED switching circuit units which are individually connected to two or more LED output terminals, which form the first to nth LED units, and form a current supply channel with respect to the corresponding LED or LED unit; and a constant current source supply circuit which maintains the average amount of current passing through the LED switching circuit units by a LED switching circuit unit, wherein the constant current source supply circuit comprises: a channel operation detecting unit; current supply amount compensation unit; a plurality of switches; and a switch control unit.</p> |
