发明名称 |
LED driver |
摘要 |
The present invention relates to an LED driver for driving light emitting diodes. The LED driver comprises a linear mode driver to increase and decrease a linear mode current to make a current flow in the LED at a predetermined target current value and output it to the LED; and a switch mode driver to increase and decrease a switch mode current depending on whether the linear mode current exceeds a predetermined reference current value and output it to the LED. Thus, the present invention provides an LED driver having high power efficiency and light efficiency and minimal distortions of a driving current.
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申请公布号 |
US7394444(B2) |
申请公布日期 |
2008.07.01 |
申请号 |
US20050262807 |
申请日期 |
2005.11.01 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM NAM-IN;KANG JEONG-IL;YANG JOON-HYUN |
分类号 |
G09G3/20;G09G3/36;G02F1/13357;G09G3/34;H01L33/00 |
主分类号 |
G09G3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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