发明名称 |
Light emitting diode driving device with a simple structure and an enhanced efficiency |
摘要 |
An LED driving device includes: an LED circuit having an input side for receiving a driving current corresponding to an AC input voltage from an external power source when the magnitude of a driving voltage across the input side is greater than a predetermined value; and a clamp circuit coupled between the input side of the LED circuit and the external power source, and permitting the driving current to pass through for clamping the magnitude of the driving current to a predetermined current level and for clamping the magnitude of the driving voltage to a predetermined voltage level. |
申请公布号 |
US8427071(B2) |
申请公布日期 |
2013.04.23 |
申请号 |
US20100942245 |
申请日期 |
2010.11.09 |
申请人 |
LIANG TSORNG-JUU;TSENG WEI-CHING;CHEN JIANN-FUH;NATIONAL CHENG KUNG UNIVERSITY |
发明人 |
LIANG TSORNG-JUU;TSENG WEI-CHING;CHEN JIANN-FUH |
分类号 |
G05F1/00;H05B37/00;H05B37/02;H05B39/00;H05B39/04;H05B41/14;H05B41/16;H05B41/24;H05B41/36 |
主分类号 |
G05F1/00 |
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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