Güncel Gönderiler: Elektrik-Elektronik Mühendisliği-Makale Koleksiyonu
Toplam kayıt 40, listelenen: 21-40
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Fabrication and characterization of Al/Cu2ZnSnS4/n-Si/Al heterojunction photodiodes
(Wıley-V C H Verlag Gmbh,, 2014)Cu2ZnSnS4 (CZTS) thin film has been synthesized by a sol-gel spin-coating technique on the n-Si substrate to fabricate heterojunction photodiodes. An X-ray diffraction study has shown that the film is polycrystalline with ... -
Optical and structural properties of bismuth doped zno thin films by sol-gel method: urbach rule as a function of crystal defects
(Polish Acad Sciences Inst Physics, 2014)Bismuth (Bi) doped zinc oxide (ZnO:Bi) thin films were prepared on glass substrates by sol gel spin coating technique using homogeneous precursor solutions, and effects of Bi doping on the structural and optical properties ... -
A multi-channel temperature and humidity measurement system based on a micro-controller
(Natl Inst Optoelectronics, 2016)In recent years, microcontrollers are devices used widely for measuring physical quantities, processing measured values and controlling systems. Their specifications like conversion into embedded systems, quite convenient ... -
Sensorless field oriented control of nonsinusoidal flux-distribution permanent magnet synchronous motor with a FEM based ANN observer
(Tubitak Scientific, 2016)The sensorless vector control of a nonsinusoidal flux -distribution permanent magnet synchronous motor (PMSM) has been performed by a trained artificial neural network (ANN) using flux data obtained from the finite element ... -
Power conditioning using dynamic voltage restorers under different voltage sag types
(Elsevier Science Bv, 2016)Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By ... -
Characterization of electrical properties of Al/maleic anhydride (MA)/p-Si structures by well-known methods
(Elsevier Science Sa, 2014)Al/maleic anhydride (MA)/p-Si metal-polymer-semiconductor (MPS) diodes have been prepared by spin coating of an organic film on p-Si substrate. These MPS structures have a good rectifying behavior. The diode parameters ... -
A fuzzy voltage regulator (FVR) for a stand-alone synchronous generator
(Taylor & Francis Inc, 2007)This study deals with terminal voltage control of a stand-alone synchronous generator using fuzzy logic based controller as a fuzzy voltage regulator (FVR) instead of classical automated voltage regulators (AVR). In order ... -
An intrinsically switchable, monolithic BAW filter using ferroelectric BST
(IEEE-Inst Electrical Electronics Engineers Inc, 2016)This letter presents an intrinsically switchable monolithic filter based on laterally acoustically coupled bulk acoustic wave resonators. The filter is based on a barium strontium titanate-on- silicon (BST-on-Si) composite ... -
Electrical characteristics of a schottky device based on maleic anhydride deposited on p-type silicon by spin coating technique
(Natl Inst Optoelectronics, 2014)Al/Maleic Anhydride (MA)/p-Si metal-polymer-semiconductor (MPS) structures were prepared on p-Si substrate by spin coating and these MPS structures had a good rectifying behavior. The capacitance-voltage (C-V) and ... -
Characteristic evaluation on spray-deposited WFTO thin films as a function of W doping ratio
(Nonferrous Metals Soc China, 2014)In this work, F and F + W simultaneously doped SnO2 highly transparent conducting thin films were deposited on glass substrates at (500 +/- A 5) A degrees C temperature by the spray pyrolysis method. Microstructural, ... -
Optimal c-type filter design to maximize transformer's loading capability under non-sinusoidal conditions
(Taylor & Francis Inc, 2014)The main purpose of this article is to employ the C-type passive filters for maximization of the loading capability of transformers under non-sinusoidal conditions. For this aim, an optimal passive filter design approach ... -
Structural characterizations and optical properties of inse and inse:ag semiconductors grown by bridgman/stockbarger technique
(Elsevier Science Bv, 2014)Undoped InSe and Ag doped InSe (InSe:Ag) single crystals have been grown by using the Bridgman/Stockbarger method. The freshly cleaved crystals have mirror-like surfaces even without using mechanical treatment. The structure ... -
Investigation of diode parameters using I-V and C-V characteristics of Al/maleic anhydride (MA)/p-Si structure
(Indian Acad Scıences, 2014)Al/maleic anhydride (MA)/p-Si metal polymer semiconductor (NIPS) structures were prepared on p-Si substrate by spin coating. Device parameters of Al/MA/p-Si structure have been determined by means of capacitance voltage ... -
Research of lightning impulse voltage distribution in dry type transformer winding
(Gazi Univ, 2016)It is important to have knowledge of parts of transformer under high voltage during designing of transformer, because of withstanding of transformer against to lightning impulse make lifespan of transformer longer. ... -
Off-line tuning of a PI speed controller for a permanent magnet brushless DC motor using DSP
(Pergamon-Elsevier Science Ltd, 2011)In this paper, a new method of tuning Proportional Integral (PI) coefficients for a permanent magnet brushless DC (PMBLDC) motor drives is proposed. Artificial neural network is used to identify the whole system using ... -
An analysis on the nonactive powers for nonsinusoidal conditions
(Gazi Üniv., 2011)In this paper, the nonactive part of the apparent power is decomposed into three different components. The qualitative and quantitative analyses show that reactive power component of the power decomposition gives the power ... -
Apparent power definitions: A comparison study
(Praise Worthy Prize Srl, 2011)This paper examines the concept of apparent power: It advocates the idea that the apparent power quantifies an ideal situation that represents optimum energy flow conditions not only for the energy supplier, but for the ... -
Performance comparison of the sun tracking system and fixed system in the application of heating and lighting
(King Fahd Univ Petroleum Minerals, 2010)In this work, a sun tracking system application is used for water heating and street lighting in Van. The solar photovoltaic system is designed for a house whose power is 5 kilo-Watts. An experimental setup is carried out ... -
Ripple reduction at speed and torque of step motors used on a two-axis robot arm
(Pergamon-Elsevier Science Ltd, 2010)This paper presents the control of two axis robot arm. The system is consisted of two step motors, robot arm, computer and PIC16F84A. One of them controls the robot arm via parallel port of the computer. The other one ... -
3-d imaging of inhomogeneous materials loaded in a rectangular waveguide
(IEEE-Inst Electrical Electronics Engineers Inc, 2010)A Newton-type method for the reconstruction of inhomogeneous 3-D complex permittivity variation of arbitrary shaped materials loaded in a rectangular waveguide is presented. The problem is first formulated as a system of ...
