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Machine translation
1. (WO2013055000) LED DRIVER CIRCUIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/055000    International Application No.:    PCT/KR2012/004660
Publication Date: 18.04.2013 International Filing Date: 13.06.2012
IPC:
H05B 37/02 (2006.01)
Applicants: HANBEAM CO., LTD. [KR/KR]; C-4FL, 906-5 Advanced Institute of Convergence Technology, Iui-dong, Youngtong-gu, Suwon-si Gyeonggi-do 443-270 (KR) (For All Designated States Except US).
LEE, Seung Min [KR/KR]; (KR) (For US Only)
Inventors: LEE, Seung Min; (KR)
Agent: AHN, Joon-Hyung; 4F, Dongchan Bldg. 125, Teheran-ro, Gangnam-Gu Seoul 135-911 (KR)
Priority Data:
10-2011-0103089 10.10.2011 KR
Title (EN) LED DRIVER CIRCUIT
(FR) CIRCUIT D'ATTAQUE À DEL
(KO) LED 구동 회로
Abstract: front page image
(EN)The present invention relates to the driver circuit of a light emitting diode (LED), characterized in that the circuit is configured to prevent excessive occurrence of switching element power loss due to high operating current in cases where a light-emitting diode designed for high output of low voltage, or an array thereof, is operated using a high-voltage alternating current power source or direct current power source in particular, and in that the circuit comprises a plurality of inductors and freewheeling diodes such that, when switching is in the off state, the combination of currents induced in each inductor flows to the LED, thereby increasing the efficiency of power use and reducing heat generated by the switching element, so permitting further miniaturization of the circuit.
(FR)La présente invention concerne un circuit d'attaque d'une diode électroluminescente (DEL), caractérisé en ce que le circuit est configuré pour empêcher l'apparition excessive d'une perte de puissance d'élément de commutation due au courant d'opération élevé, dans des cas dans lesquels une diode électroluminescente conçue pour un débit élevé de faible tension, ou un réseau de celles-ci, est actionnée à l'aide d'une source de puissance de courant alternatif haute tension ou d'une source de puissance de courant continu en particulier. Le circuit de l'invention est aussi caractérisé en ce que le circuit comprend une pluralité d'inducteurs et de diodes de marche à vide de sorte que, lorsque la commutation est dans l'état désactivé, la combinaison des courants induits dans chaque inducteur s'écoule vers la DEL, augmentant ainsi l'efficacité de l'utilisation de puissance et réduisant la chaleur générée par l'élément de commutation, ce qui permet une miniaturisation accrue du circuit.
(KO)본 발명은 발광다이오드(LED, light emitting diode)의 구동 회로에 관한 것으로서, 특히 고전압의 교류 전원 혹은 직류전원을 사용하여 저전압의 고출력으로 설계된 발광다이오드 또는 그 어레이를 동작하는 경우에 높은 동작전류로 인해 스위칭 소자의 전력 손실이 과도하게 발생하지 않도록 회로를 구성하여 전력의 사용효율을 높이고 스위칭 소자의 발열을 감소시켜 회로를 더욱 소형화할 수 있도록 인덕터와 프리 휠링 다이오드를 복수로 구성하여 스위칭 off 상태에서 LED에 각 인덕터에서 유도된 전류의 합이 흐르도록 구성하는 것을 특징으로 한다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)