Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tyng-Yang Chen0
Aung Aung Yinn0
Chow-Peng Lee0
Date of Patent
July 19, 2011
0Patent Application Number
123403630
Date Filed
December 19, 2008
0Patent Primary Examiner
Patent abstract
A LED circuit comprises: an inductor, a group of LEDs, a capacitor, a power MOS and a switching circuit. The inductor is connected to a voltage supply and a first node; the group of LEDs is connected to the first node and a ground potential; the capacitor is connected to the first node and a ground potential; the power MOS is connected to the first node and a ground potential, wherein the gate of the power MOS receives a switching signal such that the capacitor is charged when the power MOS is turn on to further turn on the LEDs and the capacitor is discharged when the power MOS is turn off to turn off the LEDs. The switching circuit is to generate the switching signal.
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