Investigation of power supply methods for intelligent LED luminary

Suzdalenko, Alexander; Galkin, Ilya

doi:10.1109/epepemc.2010.5606847

Cited by 15 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this way only DC-DC converters are needed, which have efficiency above 92 %, typically close to 98 %, and there are no Electromagnetic Compatibility issues or problems related to cos(f) or THD. Also different modulation techniques [16] can influence the total efficiency of the LED driver, as well as the power supply methods for intelligent LED luminary [17] If we add energy storage element (capacitor, Lithium-Ion, etc. ), it can even shave the power peaks, which happen when all luminaries are switched ON at first time of the evening.…”

Section: B System Architecturesmentioning

confidence: 99%

Towards smart street LED lighting systems and preliminary energy saving results

Avotiņš

Apse-Apsitis

Kuņickis

et al. 2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

View full text Add to dashboard Cite

The article gives an overview of various researches dealing with smart or intelligent street lighting systems, and what is meant with this term in different countries. Several available architectures of smart street lighting systems as well as those for future are described and discussed. Further some researches and developments of such systems in Riga Technical University are explained with the examples, also showing preliminary practical energy saving results of tests in real conditions of Riga city infrastructure. This is the first part of articles series about this research.

show abstract

Section: B System Architecturesmentioning

confidence: 99%

Towards smart street LED lighting systems and preliminary energy saving results

Avotiņš

Apse-Apsitis

Kuņickis

et al. 2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

View full text Add to dashboard Cite

show abstract

“…PWM mode is preferable for high performance applications where stable color temperature and high resolution (small dimming step) is necessary (for instance display panels) [3]. Amplitude mode regulation allows achieving better efficacy [3], [4] and helps to get rid of undesirable stroboscopic effect [4].…”

Section: Introductionmentioning

confidence: 99%

Tapped-inductor converter for dimmable light-emitting diode driver

Galkin¹,

Tetervenoks²

2013

4th International Conference on Power Engineering, Energy and Electrical Drives

Self Cite

View full text Add to dashboard Cite

The increasing popularity of light-emitting diodes (LEDs) encourages researchers to search for new approaches to control brightness of LED illumination. Recently articles have been published on the use of tapped-inductor converters as LED drivers, where high step-down ratio applications were discussed. This article focuses on the estimation of controllability parameters of such a kind of converters operating in continuous current mode. Numerical calculations and experimental results are presented in the paper. Also the conclusion about a better topology and configuration with described comparison criteria is given at the end of the article.

show abstract

“…This makes LED an ideal light source for smart lighting system [3]- [6] as the dimming is a key feature and the main instrument to reduce the consumption of electrical power [5] providing higher illumination level in the user occupied area and lower illumination level in nonoccupied area with fluent shift between areas with different illumination levels.…”

Section: Introductionmentioning

confidence: 99%

“…PWM mode is preferable for high performance applications where stable color temperature and high resolution (small dimming step) is necessary (for instance display panels) [9]. Amplitude mode regulation allows achieving better efficacy [9], [6] and helps to get rid of the undesirable stroboscopic effect [6]. Several modulation techniques of the converter switches are possible for amplitude mode light regulation [10].…”

Section: Introductionmentioning

confidence: 99%

Choice of power and control coupling elements for dimmable led driver for smart lighting networks

Tetervenoks¹

2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

The studies in the field of smart lighting systems opens new opportunities for energy savings. Such a lighting system is based on LEDs, but the LED drivers are controllable units that allows to change illumination level (provides dimming) in accordance with a given lighting strategy thus the driver is one of the basic elements of a smart lighting system. The power and control coupling elements of non-inverting buck-boost converter based LED driver are considered in this article, but the main attention is paid to the control circuitry in particular the measurement circuitry. In the scope of this article two coupling methods have been studied experimentally: the coupling of analog signal and the coupling of digital signal. Nonlinearity tests as well as the frequency response tests have been carried out. The results of these experiments show, that the approach with the coupling of digital signal has higher frequency response, but the linearity of both methods is similar. The price of digital signal coupling circuitry is higher by approximately 25%. The evaluation of current measurement methods as well as the FET drivers are the subjects for the further studies.

show abstract

Investigation of power supply methods for intelligent LED luminary

Cited by 15 publications

References 1 publication

Towards smart street LED lighting systems and preliminary energy saving results

Towards smart street LED lighting systems and preliminary energy saving results

Tapped-inductor converter for dimmable light-emitting diode driver

Choice of power and control coupling elements for dimmable led driver for smart lighting networks

Contact Info

Product

Resources

About