发明名称 |
LED LUMINESCENCE APPARATUS |
摘要 |
An LED luminescence apparatus is provided, which includes a rectifying unit rectifying an AC voltage and generating a rectified voltage; a plurality of LEDs connected in series to an output terminal of the rectifying unit; a plurality of switches having drain terminals connected to cathodes of the plurality of LEDs, respectively; and a switch control unit sensing current through a plurality of resistors connected to source terminals of the plurality of switches, respectively, comparing the sensed current with a set reference current, and outputting a voltage corresponding to a difference between the sensed current and the set reference current to a gate terminal of each of the plurality of switches. |
申请公布号 |
WO2013100736(A1) |
申请公布日期 |
2013.07.04 |
申请号 |
WO2012KR11810 |
申请日期 |
2012.12.28 |
申请人 |
SEOUL SEMICONDUCTOR CO., LTD |
发明人 |
JUNG, HYE MAN;KANG, HYUN GU;HAN, SANG WOOK;JUNG, YOUNG DO |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
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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