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    Wyświetlanie 1-14 z 14
    Tytuł:
    Fully Analytical Characterization of the Series Inductance of Tapered Integrated Inductors
    Autorzy:
    Passos, F.
    Fino, M. H.
    Moreno, E. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/226450.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inductor design
    variable width integrated spiral inductor
    integrated spiral inductor
    CMOS analog circuits
    IC designing
    RF IC design
    Opis:
    In this paper a general method for the determination of the series inductance of polygonal tapered inductor s is presented. The value obtained can be integrated into any integrated inductor lumped element model, thus granting the overall characterization of the device and the evaluation of performance parameters such as the quality factor or the resonance frequency. In this work, the inductor is divided into several segments and the corresponding self and mutual inductances are calculated. In the end, results obtained for several working examples are compared against electromagnetic (EM) simulations are performed in order to check the validity of the model for square, hexagonal, octagonal and tapered inductors. The proposed method depends exclusively on the geometric characteristics of the inductor as well as the technological parameters. This allows its straight forward application to any inductor shape or technology.
    Źródło:
    International Journal of Electronics and Telecommunications; 2014, 60, 1; 73-77
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analytical and experimental determination of the parasitic parameters in high-frequency inductor
    Autorzy:
    Zdanowski, M.
    Barlik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/200393.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    model of inductor circuit
    interlayer capacitance
    parallel resonance
    litz wire
    inductor winding
    skin effect
    pojemność pośrednia
    rezonans równoległy
    cewka indukcyjna
    Opis:
    The paper presents the results of calculations, simulations, and measurements of parasitic capacitance of winding in ferrite inductor suitable for cooperating with 2 kW DC-DC boost converter built using SiC JFET transistors, operating with a switching frequency of 100 kHz. The inductor winding is made of litz wire in a two-layer configuration. The lumped model of inductor winding was adopted. The results of analytical calculations have been compared with the results obtained from experimental investigations based on the resonance effect.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 1; 107-112
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measuring Impedances of DC-biased Inductors by Using Vector Network Analyzers
    Autorzy:
    Asmanis, G.
    Stepins, D.
    Asmanis, A.
    Ribickis, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/226614.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    vector network analyzer
    impedance
    inductor
    measurements
    accuracy
    bias tee
    Opis:
    This paper is devoted to a detailed experimentally based analysis of applicability of vector network analyzers for measuring impedance of surface mount inductors with and without DC bias. The measurements are made using custom-made bias tees and a test fixture with an ordinary vector network analyzer. The main attention in the analysis is focused on measurement accuracy of an impedance of surface mount inductors. Measurement results obtained with a vector network analyzer will also be compared to those obtained by using an impedance analyzer based on auto-balancing bridge method.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 3; 375-380
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Possibility of using a tuned inductor in a power device to improve the quality of electricity
    Autorzy:
    Gwóźdź, Michał
    Wojciechowski, Rafał M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2172810.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    adaptive compensator
    electric energy quality
    modelling magnetic elements
    tuned inductor
    Opis:
    This work focuses on the concept of operation and possibility of using a tuned inductor in electrical power systems with adaptive features. The idea presented here for the operation of the inductor is a new approach to the design of such devices. An example of a power adaptive system is a device for improving the quality of electricity. The negative impact of nonlinear loads on the operation of a power grid is a well-documented phenomenon. Hence, various types of “compensators” for reactive power, or for both reactive and distortion power, are used in electrical systems as a preventive measure. The concept of an inductor presented here offers wider possibilities for power compensation in power supply systems, compared to traditional solutions involving compensators based on fixed inductors. The use of the proposed solution in an adaptive compensator is only one example of its possible implementation in the area of power devices. In this work, we discuss the structure of the compensator, the basic aspects of the operation of the inductor, the results of simulation studies and the results of measurements obtained from a prototype.
    Źródło:
    Archives of Electrical Engineering; 2022, 71, 4; 1065--1080
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Noise Properties Of Thick-Film Conducting Lines For Integrated Inductors
    Autorzy:
    Stadler, A. W.
    Kolek, A.
    Mleczko, K.
    Zawiślak, Z.
    Dziedzic, A.
    Nowak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/221399.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    low-frequency noise
    thick-film conducting layer
    thick-film inductor
    Opis:
    Studies of noise properties of thick-film conducting lines from Au or PdAg conductive pastes on LTCC or alumina substrates are reported. Experiments have been carried out at the room temperature on samples prepared in the form of meanders by traditional screen-printing or laser-shaping technique. Due to a low resistance of the devices under test (DUTs), low-frequency noise spectra have been measured for the dc-biased samples arranged in a bridge configuration, transformer-coupled to a low-noise amplifier. The detailed analysis of noise sources in the signal path and its transfer function, including the transformer, has been carried out, and a procedure for measurement setup self-calibration has been described. The 1/f noise component originating from resistance fluctuations has been found to be dominant in all DUTs. The analysis of experimental data leads to the conclusion that noise is produced in the bends of meanders rather than in their straight segments. It occurs that noise of Au-based laser-shaped lines is significantly smaller than screen-printed ones. PdAg lines have been found more resistive but simultaneously less noisy than Au-based lines.
    Źródło:
    Metrology and Measurement Systems; 2015, 22, 2; 229-240
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Active Inductor with Feedback Resistor Based Voltage Controlled Oscillator Design for Wireless Applications
    Autorzy:
    Faruqe, Omar
    Amin, Md. Tawfiq
    Powiązania:
    https://bibliotekanauki.pl/articles/226124.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    VCO
    active inductor
    inductance
    quality factor
    phase noise
    figure-of-merit
    Opis:
    This paper presents active inductor based VCO design for wireless applications based on analysis of active inductor models (Weng-Kuo Cascode active inductor & Liang Regular Cascode active inductor) with feedback resistor technique. Embedment of feedback resistor results in the increment of inductance as well as the quality factor whereas the values are 125.6@2.4GHz (Liang) and 98.7@3.4GHz (Weng- Kuo). The Weng-Kuo active inductor based VCO shows a tuning frequency of 1.765GHz ~2.430GHz (31.7%), while consuming a power of 2.60 mW and phase noise of -84.15 dBc/Hz@1MHz offset. On the other hand, Liang active inductor based VCO shows a frequency range of 1.897GHz ~2.522GHz (28.28%), while consuming a power of 1.40 mW and phase noise of -80.79 dBc/Hz@1MHz offset. Comparing Figure-of-Merit (FoM), power consumption, output power and stability in performance, designed active inductor based VCOs outperform with the state-of-the-art.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 1; 57-64
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and analysis of the ferrite air-gapped cores for a resonant inductor
    Autorzy:
    Zheng, J.
    Wang, Ch.
    Xia, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/949922.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    three-air-gapped
    electromagnetic and thermal field
    finite element method
    resonant inductor
    Opis:
    In this paper, a three-air-gapped structure of a ferrite core for a resonant inductor is proposed. The electromagnetic and thermal field models are built using a 3D finite element method. Compared with the conventional signal-air-gapped structure of a ferrite core, the simulation and analysis results show that the proposed three-air-gapped ferrite core resonant inductor can reduce eddy-current loss and decrease temperature rise. In addition, the optimal position of air-gapped is presented.
    Źródło:
    Archives of Electrical Engineering; 2018, 67, 3; 579--589
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fractional-order model of a non-linear inductor
    Autorzy:
    Lopes, A. M.
    Tenreiro-Machado, J. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/200387.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fractional-order model
    inductor
    electrical impedance spectroscopy
    model ułamkowy
    induktor
    spektroskopia
    impedancja elektryczna
    Opis:
    This paper adopts a fractional calculus perspective to describe a non-linear electrical inductor. First, the electrical impedance spectroscopy technique is used for measuring the impedance of the device. Second, the experimental data is approximated by means of fractional-order models. The results demonstrate that the proposed approach represents the inductor using a limited number of parameters, while highlighting its most relevant characteristics.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 1; 61-67
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of inductor current ringing in DCM on output voltage of DC-DC buck power converters
    Autorzy:
    Walczak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/141175.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inductor current ringing
    DCM
    BUCK converter
    parasitic capacitance
    electromagnetic compatibility in DC-DC converters
    Opis:
    Ringing of an inductor current occurs in a DC-DC BUCK converter working in DCM when current falls to zero. The oscillations are the source of interferences and can have a significant influence on output voltage. This paper discusses the influence of the inductor current ringing on output voltage. It is proved through examples that the oscillations can change actual value of duty a cycle in a way that makes the output voltage difficult to predict.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 2; 313-323
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A dual inductor-fed boost converter with an auxiliary transformer and voltage doubler
    Autorzy:
    Dawidziuk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/201526.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    DC/DC boost converter
    current-fed
    dual inductor-fed
    auxiliary transformer
    voltage doubler
    photovoltaic systems
    Opis:
    This paper presents a dual inductor-fed boost converter with an auxiliary transformer and voltage doubler for sustainable energy power converters. The new topology integrates a two-phase boost converter and a dual inductor-fed boost converter. The energy stored and transferred by both inductors can attain a wide input-voltage and load range which uses a constant switching frequency, by controlling the time duration of the simultaneous conduction of the two switches. Among other current-fed type boost converters the presented topology is attractive due to the high voltage conversion ratio, less stress on the components and less switch conduction loss. To verify the feasibility of this topology, the principles of operation, theoretical analysis, and experimental waveforms are presented for a 1 kW prototype.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 4; 787-791
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A New Grounded Current Controlled Inductor Based on Simplified Current Conveyors
    Autorzy:
    M'harzi, Z.
    Alami, M.
    Temcamani, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/226248.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active inductor
    band-pass filter
    BiCMOS technology
    integrated circuit (IC)
    second generation current controlled conveyor (CCCII)
    Opis:
    In this paper, a new active grounded inductor controlled in current is described. This structure is realized using negative second generation current controlled conveyors and a single grounded capacitor, with no external resistance. The proposed circuit offers many advantages, such as: operation at high frequencies, simple circuit, tuning by the bias current, low power dissipation, etc. Comparison between this topology and those presented in literature is done to highlight the benefits of our structure. As an application, a bandpass filter based on the proposed active inductance is constructed to confirm the usability of the circuit and illustrate these performances. The filter center frequency and quality factor can be tuned independently. Simulation results, given under PSPICE software, present good agreement with the theoretical ones.
    Źródło:
    International Journal of Electronics and Telecommunications; 2017, 63, 2; 227-232
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel quasi-resonant ZVS boost converter with tapped inductor
    Autorzy:
    Dawidziuk, Jakub
    Harasimczuk, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/2090704.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    tapped inductor
    boost converter
    DC/DC converter
    zero voltage switching
    induktor gwintowany
    wzmacniacz
    przetwornica DC/DC
    przełączanie przy zerowym napięciu
    Opis:
    The purpose of this paper is to propose a model of a novel quasi-resonant boost converter with a tapped inductor. This converter combines the advantages of zero voltage quasi-resonant techniques and different conduction modes with the possibility of obtaining a high voltage conversion ratio by using a tapped inductor, which results in high converter efficiency and soft switching in the whole output power range. The paper contains an analysis of converter operation, a determination of voltage conversion ratio and the maximum voltage across power semiconductor switches as well as a discussion of control methods in discontinuous, critical, and continuous conduction modes. In order to verify the novelty of the proposed converter, a laboratory prototype of 300 W power was built. The highest efficiency η = 94.7% was measured with the output power Po = 260 W and the input voltage Vin = 50 V. The lowest efficiency of 90.7% was obtained for the input voltage Vin = 30 V and the output power Po = 75 W. The model was tested at input voltages (30–50) V, output voltage 380 V and maximum switching frequency 100 kHz.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; e136043, 1--11
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel quasi-resonant ZVS boost converter with tapped inductor
    Autorzy:
    Dawidziuk, Jakub
    Harasimczuk, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/2173568.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    tapped inductor
    boost converter
    DC/DC converter
    zero voltage switching
    induktor gwintowany
    wzmacniacz
    przetwornica DC/DC
    przełączanie przy zerowym napięciu
    Opis:
    The purpose of this paper is to propose a model of a novel quasi-resonant boost converter with a tapped inductor. This converter combines the advantages of zero voltage quasi-resonant techniques and different conduction modes with the possibility of obtaining a high voltage conversion ratio by using a tapped inductor, which results in high converter efficiency and soft switching in the whole output power range. The paper contains an analysis of converter operation, a determination of voltage conversion ratio and the maximum voltage across power semiconductor switches as well as a discussion of control methods in discontinuous, critical, and continuous conduction modes. In order to verify the novelty of the proposed converter, a laboratory prototype of 300 W power was built. The highest efficiency η = 94.7% was measured with the output power Po = 260 W and the input voltage Vin = 50 V. The lowest efficiency of 90.7% was obtained for the input voltage Vin = 30 V and the output power Po = 75 W. The model was tested at input voltages (30–50) V, output voltage 380 V and maximum switching frequency 100 kHz.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; art. no. e136043
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An improved calculation method of inductance and capacitances in ?1 circuits for resonant power amplifiers
    Autorzy:
    Modzelewski, J.
    Kulma, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/140508.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    induktorowy współcynnik jakości
    klasa A
    klasa AB
    klasa B
    klasa C
    resonant-circuit design
    impedance transformation
    inductor quality factor
    loaded quality factor
    Class A
    class AB
    class B
    class C
    Opis:
    In the paper an improved method of calculation of the inductance and capacitances in the ?1 circuit for Class A, AB, B, and C resonant power amplifiers is presented. This method is based on an assumption that the quality factor of the inductor is inite and the capacitors are lossless. The input parameters for calculations are the amplifier load resistance, the transistor load resistance, the quality factor of the inductor, the loaded quality factor of the designed circuit, and the operating frequency. The presented method allows reducing the required regulation range of ?1 circuits elements In built resonant amplifiers as compared to the traditional calculation methods assuming lossless capacitors and inductor. This advantage is important, in particular, for long- and medium-wave transistor power amplifiers, where capacitances in ?1 circuits are high comparing to typical trimming capacitors.
    Źródło:
    Archives of Electrical Engineering; 2012, 61, 2; 221-237
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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