发明名称 |
APPARATUS AND METHOD FOR DRIVING LIGHT-EMITTING DIODES (LEDS) |
摘要 |
System and method for improving efficiency in driving LEDs. A preferred embodiment comprises a switch current regulator coupled to a current control signal input, the switch current regulator to control an amount of current provided to the LED based upon a magnitude of a voltage on the current control signal input, a switching voltage regulator coupled to the switch current regulator and the LED, the switching voltage regulator to provide current to the LED, and a sensor coupled to the switch current regulator, the LED, and a signal feedback circuit, the sensor to measure status information regarding the switch current regulator and the LED and provides the information to a controller, wherein the status information can be used to adjust the current on the current control signal input. |
申请公布号 |
EP1922712(A2) |
申请公布日期 |
2008.05.21 |
申请号 |
EP20060789698 |
申请日期 |
2006.08.11 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
GARCIA, GETZEL, GONZALEZ;MARSHALL, STEPHEN, WESLEY;PENN, STEVEN, MONROE |
分类号 |
H05B33/08 |
主分类号 |
H05B33/08 |
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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