APPARATUS FOR SUPPLYING MULTI-OUPUT POWER AND DISPLAY APPARATUS USING THE APPARATUS FOR SUPPLYING MULTI-OUPUT POWER

• Main Authors: JOO, SUNG YONG, JUNG, SUNG BUM
• Format: Patent
• Language: English; Korean
• Published: 07.05.2013
• Subjects: ADVERTISING; 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; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRICITY; GENERATION; PHYSICS; SEALS

PURPOSE: A multi-output power supply and a display device using the same are provided maximize output efficiency by controlling headroom voltage. CONSTITUTION: A multi-output power supply(100) includes an input power supply unit(110), a first output power supply unit(120), a second output power supply unit(130) and a power control unit(140). The input power supply unit generates an LLC resonance signal using DC power. The first output power supply unit outputs the voltage induced by the LLC resonance signal as a first output voltage. The second output power supply unit outputs the voltage induced by the LLC resonance signal as a second output voltage. The power control unit controls the input power supply unit and changes the first output voltage into the LLC resonance signal with predetermined amplitude. The power control unit controls the second power supply unit and changes the second output voltage into predetermined amplitude regardless of the amplitude variation of the first output voltage. [Reference numerals] (110) Input power supply unit; (120) First output power supply unit; (130) Second output power supply unit; (140) Power control unit