A Single-Stage LED Driver Based on BCM Boost Circuit and &lt;inline-formula&gt; &lt;tex-math notation="LaTeX"&gt;$LLC$&lt;/tex-math&gt;&lt;/inline-formula&gt; Converter for Street Lighting System

Wang, Yijie; Guan, Yueshi; Ren, Kailin; Wang, Wei; Xu, Dianguo

doi:10.1109/tie.2015.2416341

Cited by 123 publications

(40 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On one hand, one-stage topologies [8]- [15], whose reduced size and cost make them the preferred option for retrofit lamps and other low-cost applications. Their main disadvantage is a shorter lifespan, derived from the fact that their only option in order to reduce the low-frequency ripple in the output is using electrolytic capacitors (in the case of ac-dc drivers).…”

Section: Introductionmentioning

confidence: 99%

Optimized Design of a High Input-Voltage-Ripple-Rejection Converter for LED Lighting

Arias

Castro

Lamar

et al. 2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

-The Asymmetrical Half Bridge (AHB) converter has been deeply analysed as second stage in acdc LED drivers. Galvanic isolation, high reliability and high efficiency are their main advantages while a limited duty cycle range (i.e., 0-0.5) and a poor dynamic behaviour are their main disadvantages. As second stage of an LED driver, the most demanding requirement for its control loop is cancelling the low-frequency ripple introduced by the first stage. According to its limited maximum attainable bandwidth, this is normally achieved by implementing a feedforward loop. Nonetheless, the static gain of the standard AHB converter presents a non-linear relation between the output voltage and the duty cycle. As a consequence, the effectiveness of this feedforward loop is limited. In this paper, the use of the Zeta Asymmetrical Half Bridge (ZAHB) converter as second stage of an LED driver is analysed and an optimized design is proposed. Regarding its advantages, it presents an extended duty cycle range (theoretically, 0-1.0). Besides, it presents a linear relation between the output voltage and the duty cycle. Therefore, although its dynamic behaviour is still limited, it can perfectly cancel the low-frequency ripple introduced by the first stage of the LED driver by means of a straightforward feedforward loop. The optimized design proposed in this paper is focused on minimizing the losses in the magnetic components (transformer and inductor) by wisely choosing the value of the two turns ratios of the transformer.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimized Design of a High Input-Voltage-Ripple-Rejection Converter for LED Lighting

Arias

Castro

Lamar

et al. 2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Latest developments and applications of solid-state lighting have begun gaining greater attention due to the requirements for efficient energy usage nowadays [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. With features of energy-savings, lower maintenance costs and long lifetime, light-emitting diode (LED) tube lamps have begun to be favorable alternatives to replace traditional T8/T10-type fluorescent lamps in building-lighting applications [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A Single-Stage LED Tube Lamp Driver with Power-Factor Corrections and Soft Switching for Energy-Saving Indoor Lighting Applications

et al. 2017

View full text Add to dashboard Cite

This paper presents a single-stage alternating current (AC)/direct current (DC) light-emitting diode (LED) tube lamp driver for energy-saving indoor lighting applications; this driver features power-factor corrections and soft switching, and also integrates a dual buck-boost converter with coupled inductors and a half-bridge series resonant converter cascaded with a bridge rectifier into a single-stage power-conversion topology. The features of the presented driver are high efficiency (>91%), satisfying power factor (PF > 0.96), low input-current total-harmonic distortion (THD < 10%), low output voltage ripple factor (<7.5%), low output current ripple factor (<8%), and zero-voltage switching (ZVS) obtained on both power switches. Operational principles are described in detail, and experimental results obtained from an 18 W-rated LED tube lamp for T8/T10 fluorescent lamp replacements with input utility-line voltages ranging from 100 V to 120 V have demonstrated the functionality of the presented driver suitable for indoor lighting applications.

show abstract

“…Bearing in mind all these, it is unanimously accepted that in order to increase the lifespan of artificial LED lighting, the elimination of electrolytic capacitors is a must. Likewise, the need to increase the power factor of this electronic load together with constant output current is necessary measures for sustainable development of these technologies [12,13].…”

Section: Introductionmentioning

confidence: 99%

Analysis of a Resonant AC‐AC LED Driver

Dorel¹,

Csaba²,

MadalinaSabina³

et al. 2017

Optoelectronics - Advanced Device Structures

View full text Add to dashboard Cite

The study analyses the performance of different LED circuit configurations feed from a low power resonant driver under pulse quasi-triangular currents. The considered LED driver topology is based on a bridgeless single-stage AC-AC converter with bidirectional switches and a parallel LC resonant tank. The converter performances are simultaneously analyzed in correlation with the most important features, such as the electric efficiency, luminous efficacy, power factor correction capabilities, and flickering implications.

show abstract

A Single-Stage LED Driver Based on BCM Boost Circuit and <inline-formula> <tex-math notation="LaTeX">$LLC$</tex-math></inline-formula> Converter for Street Lighting System

Cited by 123 publications

References 20 publications

Optimized Design of a High Input-Voltage-Ripple-Rejection Converter for LED Lighting

Optimized Design of a High Input-Voltage-Ripple-Rejection Converter for LED Lighting

A Single-Stage LED Tube Lamp Driver with Power-Factor Corrections and Soft Switching for Energy-Saving Indoor Lighting Applications

Analysis of a Resonant AC‐AC LED Driver

Contact Info

Product

Resources

About