发明名称 |
REFERENCE VOLTAGE GENERATING DEVICE, CONTROL DEVICE INCLUDING THE REFERENCE VOLTAGE GENERATING DEVICE, AND LED LIGHT EMITTING DEVICE USING THE CONTROL DEVICE |
摘要 |
A control device and an LED light emitting device using the same are provided and technology of providing a high contrast ratio to the LED light emitting device and allowing the LED light emitting device to perform a stable operation is disclosed. The LED light emitting device includes a DC/DC converter reference voltage generator that generates a DC/DC converter reference voltage so that a minimum level of a channel voltage having a largest LED voltage drop agrees with a predetermined minimum reference voltage by detecting a plurality of channel voltages corresponding to LED voltage drops of each of a plurality of LED channels LED and an output voltage controller that controls an output voltage of the DC/DC converter using a distribution voltage corresponding to an output voltage and the DC/DC converter reference voltage.
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申请公布号 |
US2010327772(A1) |
申请公布日期 |
2010.12.30 |
申请号 |
US20100825445 |
申请日期 |
2010.06.29 |
申请人 |
SILICON MITUS, INC. |
发明人 |
LEE DONG-HUN;KIM DONG-HEE;LEE KYUNG-GOO;CHOI SEOK-MUN |
分类号 |
H05B41/36 |
主分类号 |
H05B41/36 |
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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