POWER SUPPLY FOR LED

PURPOSE: A power supply unit for an LED is provided to control luminance of an LED by using a sub power source and a power source for driving an LED after converting a main power source into the power source for driving the LED. CONSTITUTION: A power supply unit(100) for an LED includes a power conv...

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Bibliographische Detailangaben
Hauptverfasser:	HONG, YOUNG GUN, HAN, SANG KYOO, KIM, HYUN JUNG, HONG, SUNG SOO, KIM, JONG SUN, LEE, SANG HOON, KIM, JUN HYOUNG, OH, DONG SEONG, ROH, CHUNG WOOK, SAKONG, SUG CHIN
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PURPOSE: A power supply unit for an LED is provided to control luminance of an LED by using a sub power source and a power source for driving an LED after converting a main power source into the power source for driving the LED. CONSTITUTION: A power supply unit(100) for an LED includes a power converting part(110) and a luminance control part(120). The power converting part has a primary coil(S1) and a plurality of secondary coils(S2). The primary coil receives an input power. The secondary coils convert an input power from the primary coil into a main power and a sub power having a predetermined voltage level. The luminance control part converts the main power from the power converting part into a power for driving the LED according to a dimming signal, and supplies the power for driving the LED and the sub power to an LED array(130).