A single-stage high power factor LED driver in continuous conduction mode

Mohamadi, Amir; Afjei, E.

doi:10.1109/pedstc.2015.7093319

Cited by 4 publications

(7 citation statements)

References 10 publications

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“…11, a dual inductor current-fed push-pull [136], or a current-fed full-bridge [137]. In the previous literature, the use of these topologies to implement ac-dc LED drivers can be found, particularly a push-pull converter in [138] and a dual inductor current-fed push-pull in [136]. The first proposal does not address any of the aforementioned issues, achieving a very low efficiency while suffering at the same time from high voltage stress on the main switches.…”

Section: ) Single-stage Solutionsmentioning

confidence: 99%

“…Even so, the two-stage solution overall performance is better in terms of efficiency and reliability, due to the better optimization of its tasks in its two different stages. In addition, it may be able to remove of the electrolytic capacitor [138].…”

Section: ) Multi-stage Solutionsmentioning

confidence: 99%

“…Active: single-stage -> 25 W [47]- [50], [53], [60], [73]- [75], [77], [108], [110]- [114], [136], [138], [196]…”

Section: Three-phase Ac-dc Led Driversmentioning

confidence: 99%

“…[47]- [50], [73]- [75], [77], [111], [112], [114], [136]. [138] -Analog: [47]- [50], [53], [60], [73]- [75], [77], [108], [110], [111], [113], [114], [138], [196] -Digital: [64], [136], [112] Yes. [49], [64], [73]- [75], [77], [108], [110]- [114], [136], [138].…”

Section: -99 <10mentioning

confidence: 99%

“…(c) PFC flyback converter[70]-[86]. Example of isolated boost based ac-dc LED drivers for luminaires based on a current-fed push-pull[138].…”

mentioning

confidence: 99%

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A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Castro

Vázquez

Arias

et al. 2019

IEEE Trans. Power Electron.

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Light-Emitting Diodes (LEDs) are coming strongly into the lighting market due to their advantages over conventional lighting solutions: energy efficient, controllable in both light and color, long lifetime, lack of a warm-up period and high power density. Some of these advantages will make LED light sources to be more than just a lightbulb, being able to transmit data, control light color, hue and intensity or even detect people in indoor environments. Nevertheless, these advantages attributed to LED capabilities are, in reality, achieved thanks to the LED driver. The present work reviews the current stateof-the-art strategies to drive LEDs from ac power grids with special emphasis into removing the most limiting component from the point of view of the lifetime, which is the electrolytic capacitor, while achieving a flicker-free performance of the light output of the LED driver. Moreover, it focuses on analyzing the required regulations, challenges and applicability of LED drivers in both single-phase and three-phase ac power grids.Note: This only applies for certified dimmable luminaires. Audible noiseLuminaire shall not emit noise above 24 dBA at 1 meter or less at the minimum output.0885-8993 (c)

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Section: ) Single-stage Solutionsmentioning

confidence: 99%

Section: ) Multi-stage Solutionsmentioning

confidence: 99%

“…Active: single-stage -> 25 W [47]- [50], [53], [60], [73]- [75], [77], [108], [110]- [114], [136], [138], [196]…”

Section: Three-phase Ac-dc Led Driversmentioning

confidence: 99%

Section: -99 <10mentioning

confidence: 99%

“…(c) PFC flyback converter[70]-[86]. Example of isolated boost based ac-dc LED drivers for luminaires based on a current-fed push-pull[138].…”

mentioning

confidence: 99%

See 3 more Smart Citations

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Castro

Vázquez

Arias

et al. 2019

IEEE Trans. Power Electron.

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show abstract

Design and Simulation of Boost Integrated Half-Bridge LLC Resonant Converter for LED Applications

Makkapati¹,

Seyezhai²,

Sridhar³

et al. 2022

Recent Advances in Energy Technologies

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Analysis of the Input Current Distortion and Guidelines for Designing High Power Factor Quasi-Resonant Flyback LED Drivers

et al. 2020

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Nowadays, LED lamps have become a widespread solution in different lighting systems due to their high brightness, efficiency, long lifespan, high reliability and environmental friendliness. The choice of a proper LED driver circuit plays an important role, especially in terms of power quality. In fact, the driver controls its own input current in addition to the LED output current, thus it must guarantee a high power factor. Among the various LED drivers available on the market, the quasi-resonant (QR) flyback topology shows interesting benefits. This paper aims at investigating and analyzing the different issues related to the input current distortion in a QR flyback LED driver. Several effects, such as the distortion caused by the ringing current, crossover distortion due to transformer leakage inductance and crossover distortion due to the input storage capacitor have been experimentally reported. These effects, not previously studied for a high power factor (Hi-PF) QR flyback, have been analyzed in depth. Finally, some practical design guidelines for a Hi-PF QR flyback driver for LED applications are provided.

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A single-stage high power factor LED driver in continuous conduction mode

Cited by 4 publications

References 10 publications

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Design and Simulation of Boost Integrated Half-Bridge LLC Resonant Converter for LED Applications

Analysis of the Input Current Distortion and Guidelines for Designing High Power Factor Quasi-Resonant Flyback LED Drivers

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