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Título: An AC–DC PFC Single-Stage Dual Inductor Current-Fed Push–Pull for HB-LED Lighting Applications
Autores: Castro, Ignacio
Martin, Kevin
Vazquez, Aitor
Arias, Manuel
G. Lamar, Diego
Sebastian, Javier
Fecha Edición: Mar-2018
Editor: IEEE
Cita Bibliográfica: I. Castro, K. Martin, A. Vazquez, M. Arias, D. G. Lamar and J. Sebastian, "An AC–DC PFC Single-Stage Dual Inductor Current-Fed Push–Pull for HB-LED Lighting Applications," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, no. 1, pp. 255-266, March 2018.
Resumen: An ac-dc single-stage driver for high-brightness light-emitting diodes (HB-LEDs) with galvanic isolation is presented in this paper. The driver is based on a dual inductor current-fed push-pull converter with each inductor operating in boundary conduction mode (BCM). The interleaving between the two inductors enables the converter to reduce the high input current ripple inherent to a BCM. Moreover, it is fully compliant with IEC 1000-3-2 Class C and it is able to achieve a high power factor (PF). Its low component count, simplicity, and overall outstanding characteristics make this current-fed topology suitable for medium power range HB-LED drivers in low-cost applications. The proposed topology has been tested on a 100-W prototype for the full range of the US single-phase line voltage, feeding several HB-LED strings, with an output voltage equivalent to 48 V at full load. The prototype achieves a maximum efficiency of 92% with a 0.99 PF, 8% total harmonic distorsion at full load while guaranteeing a good quality light.
ISSN: 2168-6785
Aparece en las Colecciones:Ingeniería

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