Active input current shaper without an electrolytic capacitor for retrofit lamps applications
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AuthorGonzález Lamar, Diego; Arias Pérez de Azpeitia, Manuel; Fernández González, Arturo; Villarejo Mañas, José Antonio; Sebastián Zúñiga, Francisco Javier
SponsorsThis work was supported by the Spanish Ministry of Education and Science under Project MINECO-13-DPI2013-47176-C2-2-R, by the Government of the Principality of Asturias under Project FC-15-GRUPIN14-143, and by European Regional Development Fund grants.
PublisherInstitute of Electrical and Electronics Engineers Inc.
Bibliographic CitationD. G. Lamar, M. Arias, A. Fernandez, J. A. Villarejo, and J. Sebastian, “Active input current shaper without electrolytic capacitor for retrofit lamps applications,” IEEE Trans. Power Electron., vol. 32, no. 5, pp. 3908–3919, May 2017.
KeywordsAC-to-DC power conversion
Light-emitting diodes (LEDs)
Switched mode power supplies
The evolution of solid-state lighting technology has transformed traditional solutions in lighting. High-brightness light-emitting diodes (HB-LEDs) have become very attractive light sources due to their excellent characteristics, namely high efficiency, a long lifetime, and low maintenance. It is evident that HB-LED drivers must be durable and efficient in order to enjoy these advantages. Moreover, to replace incandescent bulbs, the ac-to-dc HB-LED driver must be simple and have low size and comply with international regulations (i.e., injecting low-frequency harmonics into the mains supply). With the last modifications regarding low-power lighting equipment (i.e., < 25 W), the authors have traditionally focused their efforts on increasing efficiency by sacrificing sinusoidal input current, yet all their solutions obviate the suppression of the traditional electrolytic capacitor of ac-to-dc converters, highlighting that this is the price to pay for a simple and low-size solution. This ...
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