| 发明名称 |
POWER FEEDER CIRCUIT FOR LIGHT EMITTING DIODE ARRAY AND LIQUID CRYSTAL DISPLAY UNIT |
| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make the control operation quick and avoid electromagnetic interference waves and efficiency drop. <P>SOLUTION: The conduction period of a switching element is made proportional to the mathematical formula which is the function of the voltage Vin between the input terminals and the voltage Vout between the output terminals. In an up converter, the output current is feedforward controlled by making the conduction period of the switching element proportional to Vout/Vin<SP>2</SP><SB>.</SB> <P>COPYRIGHT: (C)2004,JPO</p> |
| 申请公布号 |
JP2004048011(A) |
申请公布日期 |
2004.02.12 |
| 申请号 |
JP20030192840 |
申请日期 |
2003.07.07 |
| 申请人 |
LUMILEDS LIGHTING US LLC |
发明人 |
BUCKS MARCEL JOHANNES MARIA;CLAESSENS LAMBERTUS JOHANNES M T;DE KRIJGER JOSEF PETRUS EMANUEL;NIJHOF ENGBERT BERNARD GERARD |
| 分类号 |
G09G3/36;G02F1/133;G09G3/14;G09G3/20;G09G3/34;H01L33/00;H02M3/155;H02M3/28;H05B33/08;(IPC1-7):H01L33/00 |
主分类号 |
G09G3/36 |
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