发明名称 |
PULSED CURRENT AVERAGING CONTROLLER WITH AMPLITUDE MODULATION AND TIME DIVISION MULTIPLEXING FOR ARRAYS OF INDEPENDENT PLURALITIES OF LIGHT EMITTING DIODES |
摘要 |
Exemplary embodiments provide a system, method and appartus for regulating current in loads, such as in an array of independent pluralities of light emitting diodes ("LEDs"). An exemplary system comprises a multiplexer adapted to switch current to each independent string of LEDs; a first controller to maintain a substantially constant average current level to the plurality of LEDs; and a second controller to modulate a current amplitude and duration of time division multiplexing for each independent string of LEDs. Another aspect of the system provides for modulating the on time for switching current to maintain a substantially constant average current level and to respond and converge quickly to changing current reference levels.
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申请公布号 |
WO2007016373(A3) |
申请公布日期 |
2007.11.22 |
申请号 |
WO2006US29487 |
申请日期 |
2006.07.27 |
申请人 |
SYNDITEC, INC.;SHTEYNBERG, ANATOLY;RODRIGUEZ, HARRY |
发明人 |
SHTEYNBERG, ANATOLY;RODRIGUEZ, HARRY |
分类号 |
G09G3/32 |
主分类号 |
G09G3/32 |
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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