On Supplying LEDs From Very Low DC Voltages With High-Frequency AC-LED Drivers

This paper studies the driving of white light emitting diodes (LEDs) from very low voltages in the 1.2 to 2 V range. The proposed idea is based on replacing the standard Schottky diode used in conventional converter topologies (i.e., buck, buck-boost, and boost) with an LED while shortcutting the ou...

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Veröffentlicht in:	IEEE transactions on power electronics 2019-06, Vol.34 (6), p.5711-5719
Hauptverfasser:	Castro, Ignacio, Vazquez, Aitor, Aller, Daniel G., Arias, Manuel, Lamar, Diego G., Sebastian, Javier
Format:	Artikel
Sprache:	eng
Schlagworte:	AC light emitting diode (LED) driving Circuits DC-DC power converters Demagnetization Electric converters Inductance Integrated circuits LED driver Light emitting diodes Lithium-ion batteries low input voltages Luminous efficacy Organic light emitting diodes Rectifiers Schottky diodes single-cell battery Switches Topology White light
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