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1. (WO2013162288) LIGHT-EMITTING DIODE DIMMING APPARATUS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/162288    International Application No.:    PCT/KR2013/003528
Publication Date: 31.10.2013 International Filing Date: 24.04.2013
IPC:
H05B 37/02 (2006.01), H05B 33/08 (2006.01)
Applicants: SEOUL SEMICONDUCTOR CO., LTD. [KR/KR]; 1B-25, 727, Wonsi-dong, Danwon-gu, Ansan-si, Gyeonggi-do 425-090 (KR)
Inventors: JUNG, Hye Man; (KR).
KANG, Hyun Gu; (KR).
HAN, Sang Wook; (KR).
SHIN, Jin Cheol; (KR)
Agent: AIP PATENT & LAW FIRM; 30-1, Teheran-ro 14-gil Gangnam-gu Seoul 135-935 (KR)
Priority Data:
10-2012-0043296 25.04.2012 KR
10-2013-0045331 24.04.2013 KR
Title (EN) LIGHT-EMITTING DIODE DIMMING APPARATUS
(FR) DISPOSITIF DE GRADATION À DIODE ÉLECTROLUMINESCENTE
(KO) 발광 다이오드 조광 장치
Abstract: front page image
(EN)Disclosed is a dimming apparatus having a light-emitting unit the illumination level of which changes in accordance with the number of on/off operations of a power switch. A drive current for determining the illumination level of the light-emitting unit is determined by a voltage applied to a drive resistor. The voltage applied to the drive resistor follows a control voltage. The pulse width or duty ratio of a dimming control signal is changed in order to generate and adjust the control voltage. In addition, the dimming control signal can be provided in the form of a digital signal which can turn on/off a transistor. The control voltage according to a resistance ratio is changed by turning on/off the transistor. Accordingly, the illumination level of the light-emitting unit is adjusted in accordance with the number of switching operations.
(FR)La présente invention concerne un dispositif de gradation ayant une unité électroluminescente dont le niveau d'éclairage change selon le nombre d'opérations d'activation ou de désactivation d'un commutateur électrique. Un courant d'attaque pour déterminer le niveau d'éclairage de l'unité électroluminescente est déterminé par une tension appliquée à une résistance d'attaque. La tension appliquée à la résistance d'attaque suit une tension de commande. La largeur d'impulsion ou le rapport cyclique d'un signal de commande de gradation sont modifiés afin de générer et de régler la tension de commande. En outre, le signal de commande de gradation peut être délivré sous la forme d'un signal numérique qui peut activer ou désactiver un transistor. La tension de commande est modifiée selon un rapport de résistance l'activation ou la désactivation du transistor. Par conséquent, le niveau d'éclairage de l'unité électroluminescente se règle en fonction du nombre d'opérations d'actionnement.
(KO)전원 스위치의 온/오프 동작 횟수에 따라 발광부의 조도가 변경되는 조광장치가 개시된다. 발광부의 조도를 결정하는 구동전류는 구동 저항에 인가되는 전압에 의해 결정된다. 구동 저항에 인가되는 전압은 제어전압을 추종한다. 제어전압의 형성 및 조절을 위해 디밍 제어신호는 펄스폭이 변경되거나 듀티비가 변경된다. 또한, 디밍 제어신호는 트랜지스터를 온/오프 할 수 있는 디지털 신호의 형태로 제공될 수 있다. 트랜지스터의 온/오프를 통해 저항비에 따른 제어전압은 변경된다. 이를 통해 스위칭 동작의 횟수에 따른 발광부의 조도의 조절이 수행된다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, PA, 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)