| 发明名称 |
LED driving device and method for driving an LED by using same |
| 摘要 |
The present invention relates to an LED driving device and a method for driving an LED by using the same. According to one aspect of the present invention, an LED driving device includes: a light source unit including first to nth LED groups sequentially connected in series; and a driving control unit having first to nth input terminals respectively connected to output terminals of the first to nth LED groups for controlling each of first to nth input currents which are inputted to the first to nth input terminals through first to nth current sensing signals generated by reflecting the first to nth input currents at predetermined ratios. |
| 申请公布号 |
US9247599(B2) |
申请公布日期 |
2016.01.26 |
| 申请号 |
US201214115766 |
申请日期 |
2012.05.04 |
| 申请人 |
|
发明人 |
Lee Dong-Il |
| 分类号 |
H05B37/00;H05B33/08;H05B37/02 |
主分类号 |
H05B37/00 |
| 代理机构 |
Dority & Manning, P.A. |
代理人 |
Dority & Manning, P.A. |
| 主权项 |
1. An LED driving device comprising:
a light source unit including a plurality of first to nth LED groups sequentially connected in series; and a driving control unit having first to nth input terminals connected to output terminals of the first to nth LED groups, respectively, and controlling first to nth input currents input to the first to nth input terminals, through first to nth current sensing signals generated by reflecting the first to nth input currents in predetermined proportions, wherein the driving control unit generates the first to nth current sensing signals by reflecting the first input current in the lowest proportion among the first to nth input currents, and the driving control unit generates each of the first to nth current sensing signals by reflecting all of the first to nth input currents. |
| 地址 |
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