发明名称 |
LIGHT EMITTING DIODE DRIVING DEVICE |
摘要 |
There is provided an integrated LED driving device including: a DC/DC converting part converting and outputting a DC voltage inputted from the outside by switching of a switch into a driving voltage of a magnitude suitable for driving a plurality of LED arrays; a constant current controlling part receiving at least one of information on the current flowing through the LED array and information on a voltage applied to the LED array by feed-back, the constant current controlling part including a PWM controller PWM-controlling a switching duty of the switch of the DC/DC converting part, and controlling a switching duty of each of the switches of the switching part to allow the current to flow through the LED array with a predetermined magnitude; and a control logic receiving a control signal by a user and controlling the PWM controller in response to the control signal.
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申请公布号 |
US2008315780(A1) |
申请公布日期 |
2008.12.25 |
申请号 |
US20080142375 |
申请日期 |
2008.06.19 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
LEE SANG YUN;BAEK CHANG HOON;KIM DO HUN;KIM HYUNG SUK |
分类号 |
H05B37/02;H01L33/00;H05B41/36 |
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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