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1. WO2011096726 - CONSTANT POWER SUPPLY CONVERTER FOR AN LED MODULE

Publication Number WO/2011/096726
Publication Date 11.08.2011
International Application No. PCT/KR2011/000726
International Filing Date 01.02.2011
IPC
H05B 37/02 2006.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
37Circuit arrangements for electric light sources in general
02Controlling
CPC
H05B 45/14
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
10Controlling the intensity of the light
14using electrical feedback from LEDs or from LED modules
H05B 45/3725
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
30Driver circuits
37Converter circuits
3725Switched mode power supply [SMPS]
Y02B 20/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
20Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Applicants
  • 주식회사 삼광산전 SAMKWANG INDUSTRIAL ELECTRIC CO., LTD. [KR]/[KR] (AllExceptUS)
  • 은종만 EUN, Jong-Man [KR]/[KR] (UsOnly)
Inventors
  • 은종만 EUN, Jong-Man
Agents
  • 조철현 CHO, Chul Hyun
Priority Data
10-2010-000973502.02.2010KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) CONSTANT POWER SUPPLY CONVERTER FOR AN LED MODULE
(FR) CONVERTISSEUR DE SECTEUR CONSTANT POUR UN MODULE DE DIODES ÉLECTROLUMINESCENTES
(KO) 정출력용 엘이디모듈 전원공급 컨버터
Abstract
(EN) The present invention relates to a power supply apparatus for an LED light source, in which the power supply apparatus for supplying driving power to a high efficiency LED light source has a power factor compensating function that improves power efficiency. To accomplish this, the power supply apparatus for an LED light source according to the present invention comprises a power factor compensation control circuit which includes a step-up transformer, and which compensates for a power factor of commercial alternating current power and outputs power; a charging capacitor, in which the power output from the power factor compensation control circuit is stored; a resonant switching circuit which switches power output from the charging capacitor, and supplies the voltage level required by a load side; a rectifying circuit which rectifies the voltage output from the resonant switching circuit into a predetermined direct current voltage; an LED power switching circuit which switches the voltage rectified by the rectifying circuit, and supplies the switched voltage to the load side; a voltage control circuit which senses the voltage output from the rectifying circuit, and controls a switching frequency of the resonant switching circuit to control the size of the voltage output from the rectifying circuit; and an oscillation circuit which supplies oscillation output to the LED power switching circuit to switch the supplied output by a predetermined frequency.
(FR) La présente invention concerne un appareil d'alimentation pour une source lumineuse à diodes électroluminescentes, l'appareil d'alimentation pour alimenter la puissance d'excitation à une source lumineuse LED de haute efficacité comprenant une fonction de compensation de facteur de puissance qui améliore l'efficacité de puissance. À cet effet, l'appareil d'alimentation pour une source lumineuse LED selon la présente invention comporte un circuit de commande de compensation de facteur de puissance qui comprend un transformateur élévateur, et qui compense un facteur de puissance d'une énergie de courant alternatif commerciale et émet la puissance en sortie; un condensateur de charge, dans lequel la puissance de sortie provenant du circuit de commande de compensation de facteur de puissance est stockée; un circuit résonant de commutation qui commute la puissance développée provenant du condensateur de charge, et fournit le niveau de tension requise par un côté charge; un circuit redresseur qui redresse la tension de sortie provenant du circuit de commutation résonant en une tension de courant continu prédéterminé; un circuit de commutation de puissance de diodes électroluminescentes qui commute la tension redressée par le circuit redresseur, et fournit la tension commutée au côté charge; un circuit de commande de tension qui détecte la tension de sortie provenant du circuit redresseur, et commande une fréquence de commutation du circuit de commutation résonant pour commander la grandeur de la tension de sortie provenant du circuit redresseur; et un circuit d'oscillation qui fournit une oscillation de sortie au circuit de commutation de puissance de diodes électroluminescentes pour commuter la puissance de sortie fournie par une fréquence prédéterminée.
(KO) 본 발명은 고효율의 엘이디 광원에 구동전원을 공급하기 위한 엘이디 광원 전원공급장치에서 역률보상기능을 구비하여 전력효율을 높일 수 있도록 하는 엘이디 광원 전원공급장치에 관한 것이다. 이를 실현하기 위한 본 발명의 엘이디 광원 전원공급장치는, 스텝업 트랜스포머를 포함하여 상용교류전원의 역률을 보상하여 출력하는 역률보상제어회로, 상기 역률보상제어회로의 출력전원을 저장하는 충전용 콘덴서, 상기 충전용 콘덴서의 출력전원을 스위칭시켜 부하측에서 요구하는 레벨의 전압으로 공급하는 공진형 스위칭회로, 상기 공진형 스위칭회로의 출력전압을 소정의 직류전압으로 정류하는 정류회로, 상기 정류회로의 정류전압을 스위칭시켜 부하측으로 공급하는 LED전원 스위칭회로, 상기 정류회로의 출력전압을 감지하여 상기 공진형 스위칭회로의 스위칭 주파수를 제어함으로써 상기 정류회로의 출력전압 크기를 제어하는 전압제어회로, 상기 LED전원 스위칭회로에 발진출력을 공급하여 소정 주파수로 스위칭시키는 발진회로를 포함하여 이루어진 발명이다.
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