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A high-efficiency dimmable LED driver for low-power lighting applications / Huang-Jen Chiu in IEEE transactions on industrial electronics, Vol. 57 N° 2 (Fevrier 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 2 (Fevrier 2010) . - pp. 735 - 743 Titre : A high-efficiency dimmable LED driver for low-power lighting applications Type de document : texte imprimé Auteurs : Huang-Jen Chiu, Auteur ; Yu-Kang Lo, Auteur ; Chen, Jun-Ting, Auteur Article en page(s) : pp. 735 - 743 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Coupled  inductor  single-ended  primary  induction  converter  power  factor  correction  (SEPIC  PFC)  Dimmable  light-emitting  diode  (LED)  driver  Universal  input  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a dimmable light-emitting diode (LED) driver with adaptive feedback control for low-power lighting applications. An improved pulsewidth modulation dimming technique is studied for regulating the LED current and brightness. Under universal input voltage operation, high efficiency and high power factor can be achieved by a coupled inductor single-ended primary inductance converter power factor correction (PFC) converter with a simple commercial transition-mode PFC controller. The operation principles and design considerations of the studied LED driver are analyzed and discussed. A laboratory prototype is also designed and tested to verify the feasibility. DEWEY : 621.328 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5170095 [article] A high-efficiency dimmable LED driver for low-power lighting applications [texte imprimé] / Huang-Jen Chiu, Auteur ; Yu-Kang Lo, Auteur ; Chen, Jun-Ting, Auteur . - pp. 735 - 743. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 2 (Fevrier 2010) . - pp. 735 - 743 Mots-clés : Coupled  inductor  single-ended  primary  induction  converter  power  factor  correction  (SEPIC  PFC)  Dimmable  light-emitting  diode  (LED)  driver  Universal  input  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a dimmable light-emitting diode (LED) driver with adaptive feedback control for low-power lighting applications. An improved pulsewidth modulation dimming technique is studied for regulating the LED current and brightness. Under universal input voltage operation, high efficiency and high power factor can be achieved by a coupled inductor single-ended primary inductance converter power factor correction (PFC) converter with a simple commercial transition-mode PFC controller. The operation principles and design considerations of the studied LED driver are analyzed and discussed. A laboratory prototype is also designed and tested to verify the feasibility. DEWEY : 621.328 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5170095