Results 11 to 20 of about 1,540 (164)
Sensors, 2022 A new technique to reduce flicker noise generated in light-fidelity (Li-Fi) transmission links based on the white light-emitting diode (LED) is proposed. Here, flicker noise with a frequency of 120 Hz, which is twice the frequency of AC power (60 Hz), is
Yong-Yuk Won, Jeungmo Kang
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Identification of the flicker source in the power supply systems
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. To consider issues related to the study of methods for determining the sources of violations of the quality of electrical energy in power supply systems, in particular consumers which create rapid voltage changes or voltage fluctuations that
V. I. Biryulin +2 more
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Energies, 2020 The present study analyzed light emitting diodes (LEDs) as an output load and used a Taylor series to describe the characteristic curve based on the exponential characteristic of voltage and current. A prototype circuit of a flyback LED driver system was
Ming-Chang Tsou, Ming-Tse Kuo
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A Proposal for Flicker Evaluation
Eletrônica de Potência, 2014 The measured flicker levels by using the IEC standard 61000-4-15 often far exceed the established compatibility levels, even without the existence of consumer complaints.
Arnaldo José Pereira Rosentino Junior +2 more
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Brightening and Dimming Aftereffects at Low and High Luminance
Vision, 2018 Adaptation to a spatially uniform field that increases or decreases in luminance over time yields a “ramp aftereffect”, whereby a steady, uniform luminance appears to dim or brighten, and an appropriate non-uniform test field appears to move.
Omar Hassan +2 more
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Flicker Caused by Operation of Industrial Technology
Advances in Electrical and Electronic Engineering, 2016 There are more and more electrical devices operating in industrial plants which impact negatively on the distribution network. The EN 50160 standard defines the voltage characteristics of electricity supplied by the public distribution system and it is a
Martin Kaspirek +3 more
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A novel LTPO AMOLED pixel circuit and driving scheme for variable refresh rate
Journal of Information Display, 2023 This paper proposes a novel pixel circuit and driving scheme that adopts low-temperature polycrystalline silicon and oxide thin-film transistors (LTPO TFTs) for mobile devices using active-matrix organic light-emitting diode (AMOLED) displays.
Jung Chul Kim +9 more
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Determination of Flicker Contribution Level by Using Proposed Index
Elektronika ir Elektrotechnika, 2018 Depending on different load characteristics, various power quality disturbances such as sag-swell, harmonics, inter-harmonics, and flicker, appear in electric power systems. Among these power quality disturbances, the flicker is one of the critical power
Murat Silsupur, Belgin Emre Turkay
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Известия высших учебных заведений: Проблемы энергетики, 2018 The article considers the problem of reliable evaluation of flicker in electrical networks. The technique for calculating the normalized frequency characteristics of the instrument for light sources with different sensitivity to voltage fluctuations is ...
K. E. Lisitskiy
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Yol Aydınlatmasında Flicker Etkisi Esaslı Direk Açıklığı Tespiti
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2016 Yol aydınlatmasında, aydınlatma seviyesi ve kullanılan ışık rengi niteliği kadar, aydınlatmanın bir diğer önemli kriteri olan flicker etkisi de önem taşır.
Nazım İMAL, Beşir TAŞKAN
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