发明名称 |
System and method for a constant current source LED driver |
摘要 |
A system and method for providing a constant current source driver for a light emitting diode string. The converter includes a current sensor that derives feedback signal corresponding to a peak current through the light emitting diode string. The feedback signal is used by a controller to vary a duty cycle of the controller to regulate the average current. The controller is operable to regulate the average current as the number of light emitting diodes is increased and/or decreased.
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申请公布号 |
US2010164404(A1) |
申请公布日期 |
2010.07.01 |
申请号 |
US20090384983 |
申请日期 |
2009.04.10 |
申请人 |
STMICROELECTRONICS, INC. |
发明人 |
SHAO JIANWEN;LO GIUDICE JOHN S.;STAMM THOMAS A. |
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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