External power supply for display

• Main Authors: HAN, SANG KYOO, WON, JAE SUN, HEO, TAE WON, KIM HEUI WOOK, KWEON, GIE HYOUN, KIM, HAK RYONG, RYU, DONG KYUN, JEONG, IN WHA, NOH, YOUNG SEUNG, CHOI, HEUNG GYOON
• Format: Patent
• Language: English; Korean
• Published: 08.03.2017
• Subjects: 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; ELECTRICITY; GENERATION

An external power supply device for an electronic device is disclosed. The external power supply device is formed on the outside of an electronic device, and supplies DC power to the electronic device by receiving and processing commercial AC power. Accordingly, the degree of freedom of a design of the electronic device can be increased without a safety specification limitation on a commercial AC input. The external power supply device comprises: a power filter unit for removing noises from a power line; a power factor correction (PFC) unit for performing PFC; and an unregulated bus converter (UBC) unit for converting DC power outputted in the PFC unit into more stable DC power without output voltage regulation by a feedback, and outputting more stable DC power. 전자기기용 외장형 전원 공급 장치가 개시된다. 이 외장형 전원 공급 장치는 전자기기의 외부에 구성되며, 상용 AC 전원을 입력받아 처리하여 전자기기로 DC 전원을 공급한다. 이에 의해, 상용 AC 입력에 대한 안전규격에 제한을 받지 않고 전자기기의 설계 자유도를 높일 수 있다.